Difference between revisions of "Daikin"
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | L0 |
|Malfunction of inverter system | |Malfunction of inverter system | ||
|Shortage of power supply capacity<br> Defective power transistor<br> Defective outdoor unit PCB | |Shortage of power supply capacity<br> Defective power transistor<br> Defective outdoor unit PCB | ||
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | L6 |
| − | | | + | |Inverter instantaneous overcurrent<br> (AC output) |
| − | | | + | |Overcharge of refrigerant amount<br> Shortage of power supply capacity<br> Defective compressor<br> Defective inverter unit |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" |L8 |
| − | | | + | |Malfunction of overcurrent inverter<br> compressor |
| − | | | + | |Compressor overloaded<br> Wiring disconnection in compressor coil<br> Disconnection of compressor wiring<br> Defective inverter PCB |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | L9 |
| − | | | + | |Malfunction of inverter compressor<br> startup error (Stall prevention) |
| − | | | + | |The stop valve is not opened<br> Defective compressor<br> Error in wire connections to compressor<br> Large differential pressure before compressor startup<br> Defective inverter PCB |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | LA |
| − | | | + | |Malfunction of power transistor |
| − | | | + | |Defective power transistor<br> Defective compressor<br> Defective inverter PCB |
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| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | LC |
| − | | | + | |Malfunction of transmission<br> between control and inverter PCB |
| − | | | + | |Defective connection between the inverter PCB and the<br> control PCB<br> External factors (e.g. noise)<br> Defective inverter compressor<br> Defective control PCB (transmission block) |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| + | | style="text-align: center;" |V | ||
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | M1 |
| − | | | + | |Malfunction of central remote<br> controller PCB |
| − | | | + | |Defective central remote controller PCB |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| + | | style="text-align: center;" |V | ||
|- | |- | ||
| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" |M8 |
| − | | | + | |Malfunction of transmission<br> between optional controllers for<br> centralized control |
| − | | | + | |Other centralized control power disconnection<br> Centralized control reset switch ON<br> Defective transmission wiring<br> Central remote controller address change |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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|- | |- | ||
| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | MA |
| − | | | + | |Improper combination of optional<br> controllers for centralized control |
| − | | | + | |Improper combination of optional controllers for centralized<br> control<br> More than one master controller is connected<br> Faulty setting of centralized control<br> Defect of centralized control |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| + | | style="text-align: center;" |V | ||
|- | |- | ||
| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | MC |
| − | | | + | |Address duplication, improper<br> setting |
| − | | | + | |Address duplication of central remote controller |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| + | | style="text-align: center;" |V | ||
|- | |- | ||
| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | PO |
| − | | | + | |Shortage of refrigerant amount<br> (thermal storage unit) |
| − | | | + | |Shortage of refrigerant<br> Clogged refrigerant piping |
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| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center;" | | + | | style="text-align: center;" |V |
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| − | | style="text-align: center; font-weight: bold; color: #007ABF;" | | + | | style="text-align: center; font-weight: bold; color: #007ABF;" | P1 |
| − | | | + | |Power voltage imbalance or<br> inverter PCB |
| − | | | + | |Open phase<br> Interphase voltage imbalance<br> Defective capacitor in the main circuit<br> Defective wiring in the main circuit<br> Defective inverter PCB |
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Revision as of 03:56, 3 November 2016
Contents
Setting Indoor Group Address
Indoor Group Address is required for proper CoolMasterNet operation. Without Group Address Indoor unit is not visible and can not be controlled by CoolMasterNet. Group Address is set with wired remote controller. Here is a simple sequence of operations for Daikin BRCE61 wired remote controller to set Group Address.
- Press and hold Cancel button for a few seconds
- Scroll down to Group No. setting function and press Menu/Enter button
- Program Group Address and then press Menu/Enter to save address
Remember if Indoor unit can not see a CoolMasterNet you won't have the Group Address menu option. So make sure the CoolMasterNet is wired to F1 F2 HVAC line and powered.
Reading Thermostat ambient temperature instead of return air
CoolMasterNet will read ambient temperature measured by Thermostat - local wired controller (like BRC1E72) if following field settings had being done on Thermostat:
Setting 10-2 = 03 - Only the thermostat thermistor will be utilized by Indoor unit.
Setting 10-5 = 02 - Room temperature value reported to CoolMasterNet by Indoor is taken from Thermostat
KRP928A2S Auto Mode Control
To enable proper Auto Mode control from CoolMasterNet of the Indoor Unit connected via KRP928A2S adapter, make sure to configure SW3 switch to GLO position:
Daikin Self-diagnostic Malfunction (Error) Codes
| I n d o o r U n i t |
Malfunction
Code |
Problem
Description |
Supposed
Causes |
Models | CoolAutomation Encoding | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RA | Sky Air |
VRV | Pac kage |
HRV | Chil ler |
Fan Coil |
HEX | DEC | ||||
| A0 | External protection device activated | External protection device connected to the terminal strip T1-T2 of indoor unit is activated | V | V | V | |||||||
| A1 | Malfunction of indoor unit PCB | Defective indoor unit PCB External factor (Noise etc.) |
V | V | V | V | V | V | ||||
| A3 | Drain Level Control System Abnormality | Drain clogging, upward slope, etc Defective drain pump Defective float switch or short circuit connector |
V | V | V | V | V | |||||
| A4 | Malfunction of freezing protection | Shortage of water volume Low water temperature setting Defective water temperature thermistor |
V | V | V | V | V | V | ||||
| A5 | High pressure control in heating, freeze-up protection control in cooling | Clogged air filter of indoor unit and short circuit Defect of indoor unit heat exchanger thermistor |
V | V | V | V | ||||||
| A6 | Malfunction of fan motor | Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness Defective fan motor Defective indoor unit PCB |
V | V | V | V | V | |||||
| A7 | Malfunction of swing flap motor | Defective swing fl ap motor Defective indoor unit PCB Defective connection cable Defective airflow direction adjusting fl ap-cam |
V | V | ||||||||
| A8 | Malfunction of power supply or AC input overcurrent | Defective power supply voltage Defective connection on signal line Defective wiring |
V | V | V | |||||||
| A9 | Malfunction of electronic expansion valve | Defective electronic expansion valve coil Defective indoor unit PCB Defective relay cables |
V | V | V | V | V | |||||
| AA | Heater overheat | 26WH is activated | V | V | ||||||||
| AF | Malfunction of a humidifi er system | Humidifi er unit (optional accessory) leaking Defective drain piping (upward slope, etc.) Defective indoor unit PCB |
V | V | V | |||||||
| AH | Malfunction of dust collector of air cleaner | Defect of dust collecting element Stained insulator part Defect of high voltage power supply unit Defect of indoor unit PCB |
V | V | V | V | ||||||
| AJ | Malfunction of capacity setting(Indoor unit PCB) | The capacity setting adaptor was not installed when replacing PCB. Defective indoor unit PCB |
V | V | V | |||||||
| С1 | Failure of transmission (between indoor unit PCB and sub PCB) | Defective connection of the connector between indoor unit PCB | V | V | ||||||||
| С4 | Malfunction of liquid pipe thermistor for heat exchanger | Defective thermistor for liquid pipe Defective indoor unit PCB Defective connector contact |
V | V | V | V | V | V | V | |||
| C5 | Malfunction of gas pipe thermistor for heat exchanger | Defective thermistor for gas pipe Defective indoor unit PCB Defective connector contact |
V | V | V | V | V | |||||
| C6 | Malfunction of fan motor sensor or fan control driver | Defective fan PCB Defective connection of capacity setting adaptor Field setting error |
V | V | ||||||||
| C7 | Front panel driving motor fault | Defective front panel driving motor Defective limit switch |
V | |||||||||
| C9 | Malfunction of suction air thermistor | Defective thermistor for suction air Defective indoor unit PCB Defective connector contact |
V | V | V | V | V | V | ||||
| CA | Malfunction of discharge air thermistor | Defective thermistor for discharge air Defective indoor unit PCB Defective connector contact |
V | V | V | V | ||||||
| CC | Malfunction of humidity sensor system | Defective humidity sensor Defective connector contact |
V | V | V | |||||||
| CJ | Room temperature thermistor in remote controller abnormality | Defective room temperature thermistor in remote controller Defective remote controller PCB External factor (Noise etc.) |
V | V | V | V | V | |||||
| H5 | Malfunction of compressor motor overload thermistor | Defect of compressor motor overload thermistor Defective connector contact |
V | V | ||||||||
| H6 | Malfunction of position detection sensor | Faulty contact of compress or cable Defective compressor Defective outdoor unit PCB |
V | V | V | |||||||
| H7 | Malfunction of outdoor unit fan motor signal | Abnormal signal from fan motor (Circuit failure) Disconnection/Short circuit in fan motor leads or disconnection of connector Defective inverter PCB |
V | V | V | V | ||||||
| H8 | Malfunction of compressor input(CT) system | Defective power transistor Defective reactor Faulty wiring of inverter system Defective outdoor unit PCB |
V | V | ||||||||
| H9 | Malfunction of outdoor air thermistor | Defective connection of thermistor Defective outdoor unit PCB Defective outdoor air thermistor |
V | V | V | V | V | |||||
| HC | Malfunction of (hot) water temperature thermistor | Defective connection of thermistor Defective outdoor unit PCB Defective water temperature thermistor |
V | V | V | |||||||
| HF | Alarm in thermal storage unit or storage controller | Thermal storage group defective wiring Defective setting Excess of thermal storage tank numbers |
V | |||||||||
| HJ | Malfunction of thermal storage tank water level | Low water level Defective switch setting Water level detecting sensor failure Defective connector contact |
V | V | V | V | ||||||
| J1 | Malfunction of pressure sensor | Defective pressure sensor connector contact Defective pressure sensor Defective outdoor unit PCB |
V | V | V | V | ||||||
| J2 | Malfunction of current sensor of compressor | Defective current sensor Defective compressor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J3 | Malfunction of discharge pipe thermistor | Defective connection of thermistor Defective discharge pipe thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J4 | Malfunction of low pressure equivalent saturated temperature sensor system |
Defective connection of thermistor Defective thermistor Defective outdoor unit PCB |
V | V | ||||||||
| J5 | Malfunction of suction pipe thermistor | Defective connection of thermistor Defective suction pipe thermistor Defective outdoor unit PCB |
V | V | V | V | ||||||
| J6 | Malfunction of heat exchanger thermistor | |||||||||||
| J7 | Malfunction of thermistor (Refrigerant circuit) | Defective connection of thermistor Defective liquid pipe thermistor Defective outdoor unit PCB |
V | V | V | V | ||||||
| J8 | Malfunction of thermistor (Refrigerant circuit) | Defective connection of thermistor Defective liquid pipe thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J9 | Malfunction of thermistor (Refrigerant circuit) | Defective connection of thermistor Defective gas pipe thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| JA | Malfunction of high pressure sensor | Defective connector contact Connection of low pressure sensor in mistake for high pressure sensor Defective high pressure sensor Defective outdoor unit PCB |
V | V | V | V | ||||||
| JC | Malfunction of low pressure sensor | Defective connector contact Connection of high pressure sensor in mistake for low pressure sensor Defective low pressure sensor Defective outdoor unit PCB |
V | V | V | V | ||||||
| P2 | Automatic refrigerant charge operation stop | The stop valve is not opened Closed valve of refrigerant tank |
V | V | V | V | ||||||
| P3 | Malfunction of thermistor in switch box |
Defective connection of thermistor Defective reactor thermistor Defective inverter PCB |
V | V | V | V | V | |||||
| P4 | Malfunction of radiation fi n temperature sensor |
Defective radiation fi n temperature thermistor Defective inverter PCB Defective INV. compressor Defective fan motor |
V | V | V | V | V | |||||
| P8 | Heat exchanger freezing protection during automatic refrigerant charging |
(Close the refrigerant cylinder. Start again from step 1.) | V | V | V | |||||||
| P9 | Malfunction of fan motor (humidifi er unit) |
Defective fan motor Defective outdoor unit PCB Broken relay harness Defective connector contact |
V | |||||||||
| P9 | Automatic refrigerant charge operation completed |
— | V | V | V | V | ||||||
| PA | Refrigerant cylinder during automatic refrigerant charging |
Refrigerant cylinder of master unit is empty | V | V | V | |||||||
| PA | Broken wire of heater (humidifi er unit) |
Defective heater unit Defective thermistor Defective outdoor unit PCB |
V | |||||||||
| PC | Refrigerant cylinder during automatic refrigerant charging |
Refrigerant cylinder of slave unit 2 is empty | V | V | ||||||||
| PE | Automatic refrigerant charge operation nearly completed |
— | V | V | V | |||||||
| PH | Refrigerant cylinder during automatic refrigerant charging |
Defective heater unit Defective connector contact Defective thermistor Defective outdoor unit PCB |
V | V | V | |||||||
| PJ | Malfunction of capacity setting (Outdoor unit PCB) |
Capacity setting adaptor is not installed Improper capacity setting adaptor Defective outdoor unit PCB |
V | |||||||||
| PJ | Improper combination between inverter and fan driver |
Mis-matching of type of PCB Improper (or no) fi eld setting after replacing outdoor unit main PCB |
V | V | V | V | ||||||
| U0 | Shortage of refrigeran | Refrigerant shortage and refrigerant clogging (wrong piping) Defective thermistor Defective low pressure sensor Defective outdoor unit main PCB |
V | V | V | V | V | |||||
| U1 | Reverse phase, open phase | Power supply reverse phase T phase open phase Defective outdoor unit PCB (A1P) |
V | V | V | V | V | V | V | |||
| U2 | Malfunction of power supply or instantaneous power failure |
Abnormal power supply voltage Instantaneous power failure Defective main circuit wiring |
V | V | V | V | V | V | ||||
| U3 | Check operation not executed or transmission error |
Check operation is not executed. | V | V | V | V | V | V | V | |||
| U4 | Malfunction of transmission between indoor and outdoor unit |
Short circuit in indoor-outdoor or outdoor-outdoor transmission wiring (F1 / F2), or wrong wiring Outdoor unit power supply is OFF System address does not match Defective indoor unit PCB Defective outdoor unit PCB |
V | V | V | V | V | V | V | |||
| U5 | Malfunction of transmission between indoor unit and remote controller |
Transmission error between indoor unit and remote controller Connection of 2 main remote controllers (when using 2 remote controllers) Defective indoor unit PCB Defective remote controller PCB Transmission error caused by noise |
V | V | V | V | V | V | ||||
| U6 | Malfunction of transmission between indoor units |
Faulty wiring External factor (Noise etc.) Defective indoor unit PCB |
V | V | V | V | ||||||
| U7 | Malfunction of transmission between outdoor units or outdoor storage unit |
Connection error of transmission wirings between outdoor unit and external control adaptor for outdoor unit Connection error of transmission wirings between outdoor units Defective outdoor unit PCB |
V | V | V | V | V | |||||
| U8 | Malfunction of transmission between remote controllers |
Transmission error between main and sub remote controller Connection between sub remote controllers Defective remote controller PCB |
V | V | V | V | V | V | ||||
| U9 | Malfunction of transmission (other system) |
Transmission error between other indoor and outdoor units Defective electronic expansion valve of other indoor unit Defective indoor unit PCB of other indoor unit Improper connection of transmission wiring between indoor and outdoor unit |
V | V | V | V | V | |||||
| UA | Defect of indoor/outdoor power supply |
Wrong model connections Improper power supply Wrong PCB connected Defective PCB |
V | |||||||||
| UA | Improper combination of indoor and outdoor units |
Excess of connected indoor units Defective outdoor unit PCB Mismatch of the refrigerant type of indoor and outdoor unit Setting of outdoor unit PCB was not carried out after replacing to spare PCB |
V | V | V | V | ||||||
| UA | Remote temperature setting wire disconnection |
Remote temperature setting wire disconnection Defective connector contact |
V | |||||||||
| UC | Malfunction of setting of centralized control equipment address |
Address duplication of centralized control equipment Defective indoor unit PCB |
V | V | V | V | V | V | ||||
| UE | Malfunction of transmission between indoor unit and centralized control equipment |
Transmission error between optional controllers for centralized control equipment and indoor unit Connector for setting main controller is disconnected.(or disconnection of connector for independent / combined use changeover switch.) Defective PCB for central remote controller Defective indoor unit PCB |
V | V | V | V | V | V | ||||
| UF | System is not set yet | Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor units Failure to execute check operation Defective indoor unit PCB Stop valve is not opened |
V | V | V | V | ||||||
| UH | Malfunction of system | Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor units Defective indoor unit PCB Defective outdoor unit PCB |
V | V | V | |||||||
| UJ | Malfunction of transmission (accessory device) |
Defect of accessory devices Faulty wiring |
V | V | V | V | V | |||||
| 60 | External protection device activated (Heat reclaim ventilator) |
Actuation of external protection device Defective output signal wiring Defective control PCB |
V | |||||||||
| 64 | Malfunction of indoor air thermistor (Heat reclaim ventilator |
Defective connector contact Defective indoor air thermistor Defective control PCB |
V | |||||||||
| 65 | Malfunction of outdoor air thermistor (Heat reclaim ventilator) |
V | ||||||||||
| 6A | Malfunction of damper system (Heat reclaim ventilator) |
Defective connector contact Defective limit switch Defective damper motor Defective control PCB |
V | |||||||||
| 70 | System No. 2 Compressor overheat |
Shortage of refrigerant amount Defective connector contact Leakage of four way valve |
V | |||||||||
| 71 | System No. 2 Compressor overcurrent |
Shortage of refrigerant amount Short circuit Defective compressor |
V | |||||||||
| 72 | System No. 2 Fan motor overcurrent |
Defective fan motor connector contact Defective fan motor Defective PCB |
V | |||||||||
| 73 | System No. 2 Actuation of high pressure switch (HPS) |
Dirty heat exchanger Shortage of water volume Clogged refrigerant piping Defective connector contact Defective HPS |
V | |||||||||
| 74 | System No. 2 Actuation of low pressure switch (LPS) |
Clogged refrigerant piping Defective connector contact Shortage of gas Defective LPS |
V | |||||||||
| 75 | System No. 2 Malfunction of low pressure sensor |
Defective connector contact Defective low pressure sensor Defective PCB |
V | |||||||||
| 76 | System No. 2 Malfunction of high pressure sensor |
Defective connector contact Defective high pressure sensor Defective PCB |
V | |||||||||
| 77 | System No. 1 Malfunction of fan inter lock |
Defective relay contact Broken wire |
V | |||||||||
| 78 | System No. 2 Malfunction of fan inter lock |
Defective relay contact Broken wire |
V | |||||||||
| 7A | System No. 2 Malfunction of compressor current sensor |
Defective current sensor Defective compressor Defective outdoor unit PCB |
V | |||||||||
| 7C | System No. 2 Malfunction of pump inter lock |
Cooling water pump interlock actuated | V | |||||||||
| 80 | Malfunction of entering water temperature thermistor |
Defective connector contact
Defective entering water temperature thermistor |
V | |||||||||
| 81 | Malfunction of leaving water temperature thermistor or drain pipe heater |
Defective connector contact Defective leaving water temperature thermistor |
V | |||||||||
| 82 | System No. 1 Malfunction of refrigerant thermisto |
Defective connector contact Defective refrigerant thermistor |
V | |||||||||
| 83 | System No. 2 Malfunction of refrigerant thermistor |
Defective connector contact Defective refrigerant thermistor |
V | |||||||||
| 84 | System No. 1 Malfunction of heat exchanger thermistor |
Defective connector contact Defective heat exchanger thermistor |
V | |||||||||
| 85 | System No. 2 Malfunction of heat exchanger thermistor |
Defective connector contact Defective heat exchanger thermistor |
V | |||||||||
| 86 | System No. 1 Malfunction of discharge pipe thermistor |
Defective connecting connector Defective discharge pipe thermistor |
V | |||||||||
| 88 | System No. 2 Malfunction of discharge pipe temperature |
Shortage of gas Defective discharge pipe thermistor Defective connector contact Clogged refrigerant piping |
V | |||||||||
| 89 | Malfunction of brazed-plate heat exchanger freezing |
Dirty heat exchanger Shortage of refrigerant amount Defective thermistor |
V | |||||||||
| 8A | System No. 2 Malfunction of leaving water temperature thermistor |
Defective connector contact Defective leaving water temperature thermistor |
V | |||||||||
| 8E | System No. 1 Malfunction of suction pipe thermistor 1 for heating |
Defective connector contact Defective suction pipe thermistor |
V | |||||||||
| 8F | System No. 1 Malfunction of suction pipe thermistor 2 for heating |
Defective connector contact Defective suction pipe thermistor |
V | |||||||||
| 8H | Abnormal hot water high temperature |
Three way valve malfunction Defective thermistor Defect of water temperature setting |
V | |||||||||
| 90 | Abnormal chilled water quantity or abnormal AXP |
Shortage of water volume Disconnection of AXP |
V | |||||||||
| 91 | Defective connector contact Defective electronic expansion valve coil |
V | ||||||||||
| 92 | System No. 2 Malfunction of suction pipe thermistor |
Defective connector contact Defective suction pipe thermistor |
V | |||||||||
| 94 | Malfunction of transmission (between heat reclaim ventilator and fan unit) |
Defective fan unit PCB Defective connecting wire between (1) and (2) |
V | |||||||||
| 95 | System No. 1 Malfunction of inverter system |
Defective fan inverter unit | V | |||||||||
| 96 | System No. 2 Malfunction of inverter system |
Defective fan inverter unit | V | |||||||||
| 97 | Malfunction of thermal storage unit | Defective thermal storage unit | V | |||||||||
| 98 | Malfunction of thermal storage brine pump |
Actuation of thermal storage brine pump overcurrent (OC) | V | |||||||||
| 99 | Malfunction of thermal storage brine tank |
Low water level of thermal storage brine tank | ||||||||||
| E0 | Protection devices activated (unifi ed) |
Protection device connected to outdoor unit PCB actuated Defective protection device connector contact |
V | V | V | |||||||
| E1 | Defective outdoor unit PCB | Defective outdoor unit PCB Defective connection of inside/ outside relay wires |
V | V | V | V | V | |||||
| E3 | Actuation of high pressure switch (HPS) |
Dirty outdoor unit heat exchanger Defective high pressure switch Clogged refrigerant piping Defective connector contact |
V | V | V | V | ||||||
| E3 | System No.1 Actuation of high pressure switch (HPS) |
Dirty outdoor unit heat exchanger Shortage of water volume Clogged refrigerant piping Defective connector contact Defective HPS |
V | |||||||||
| E4 | Actuation of low pressure switch (LPS) |
Abnormally drop in low pressure Defective low pressure sensor Defective outdoor unit PCB Defective connector contact |
V | V | V | V | ||||||
| E5 | Inverter compressor motor or overheat |
Inverter compressor lock High differential pressure Defective inverter PCB UVW connection error Defective connector contact |
V | V | V | V | V | |||||
| E6 | STD compressor motor overcurrent/lock |
Defective compressor Defective control PCB The stop valve is not opened |
V | V | V | V | ||||||
| E6 | System No.1 Compressor overcurrent |
Defective electronic expansion valve Shortage of refrigerant amount Defective compressor |
V | |||||||||
| E7 | Malfunction of outdoor unit fan motor system |
Fan motor failure Neglect to connect or defective connection of harness/ connector between the fan motor and the PCB Fan does not rotate due to foreign matters caught in it |
V | V | V | V | V | |||||
| E8 | Overcurrent of inverter compressor | Defective compressor Defective inverter main circuit capacitor Defect of outdoor unit PCB Defect of power transistor |
V | V | ||||||||
| E9 | Malfunction of electronic expansion valve coil |
Disconnection of connectors from electronic expansion valves Defective electronic expansion valve coil Defective outdoor unit control PCB |
V | V | V | V | ||||||
| EA | Malfunction of four way valve or cool/heat switchin |
Defective four way valve Shortage of gas Defective outdoor unit PCB Defective thermistor |
V | |||||||||
| EC | Malfunction of entering water temperature |
Cooling water temperature abnormality Defective outdoor unit PCB Defective thermistor |
V | |||||||||
| F3 | Malfunction of discharge pipe temperature |
Defective discharge pipe thermistor Abnormal discharge pipe temperature Defective outdoor unit control PCB Defective connector contact |
V | V | V | V | V | |||||
| F6 | Abnormal high pressure or refrigerant overcharged |
Refrigerant overcharged Disconnection of heat exchanger deicer thermistor Disconnection of outdoor air thermistor Disconnection of liquid pipe temperature thermistor Defective outdoor unit PCB |
V | V | V | V | ||||||
| H0 | Malfunction of sensor system of compressor |
Harness is disconnected, or defective connection Defective PCB |
V | V | ||||||||
| H1 | Malfunction of room temperature sensor or humidifi er unit damper |
Defective limit switch Defective damper |
V | V | ||||||||
| H3 | Malfunction of high pressure switch (HPS) |
Defective high pressure switch Broken wire Defective outdoor unit PCB Defective connector contact |
V | V | V | V | V | |||||
| H4 | Malfunction of low pressure switch (LPS) |
Defective low pressure switch Broken wire Defective outdoor unit PCB Defective connector contact |
V | V | V | |||||||
| H5 | Malfunction of compressor motor overload thermistor |
Defect of compressor motor overload thermistor Defective connector contact |
V | V | ||||||||
| H6 | Malfunction of position detection sensor |
Faulty contact of compress or cable Defective compressor Defective outdoor unit PCB |
V | V | V | |||||||
| H7 | Malfunction of outdoor unit fan motor signal |
Abnormal signal from fan motor (Circuit failure) Disconnection/Short circuit in fan motor leads or disconnection of connector Defective inverter PCB |
V | V | V | V | ||||||
| H8 | Malfunction of compressor input (CT) system |
Defective power transistor Defective reactor Faulty wiring of inverter system Defective outdoor unit PCB |
V | V | ||||||||
| H9 | Malfunction of outdoor air thermistor |
Defective connection of thermistor Defective outdoor unit PCB Defective outdoor air thermistor |
V | V | V | V | V | |||||
| HC | Malfunction of (hot) water temperature thermistor |
Defective connection of thermistor Defective outdoor unit PCB Defective water temperature thermistor |
V | V | V | |||||||
| HF | Alarm in thermal storage unit or storage controller |
Thermal storage group defective wiring Defective setting Excess of thermal storage tank numbers |
V | |||||||||
| HJ | Low water level Defective switch setting Water level detecting sensor failure Defective connector contact |
Low water level Defective switch setting Water level detecting sensor failure Defective connector contact |
V | V | V | V | ||||||
| J1 | Malfunction of pressure sensor | Defective pressure sensor connector contact Defective pressure sensor Defective outdoor unit PCB |
V | V | V | |||||||
| J2 | Malfunction of current sensor of compressor |
Defective current sensor Defective compressor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J3 | Malfunction of discharge pipe thermistor |
Defective connection of thermistor Defective discharge pipe thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J4 | Malfunction of low pressure equivalent saturated temperature sensor system |
Defective connection of thermistor Defective thermistor Defective outdoor unit PCB |
V | V | ||||||||
| J5 | Malfunction of suction pipe thermistor |
Defective connection of thermistor Defective suction pipe thermistor Defective outdoor unit PCB |
V | V | V | V | ||||||
| J6 | Malfunction of heat exchanger thermistor |
Defective connection of thermistor Defective heat exchanger thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J7 | Malfunction of thermistor (Refrigerant circuit |
Defective connection of thermistor Defective liquid pipe thermistor Defective outdoor unit PCB |
V | V | V | V | ||||||
| J8 | Malfunction of thermistor (Refrigerant circuit) |
Defective connection of thermistor Defective liquid pipe thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| J9 | Malfunction of thermistor (Refrigerant circuit) |
Defective connection of thermistor Defective gas pipe thermistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| JA | Malfunction of high pressure sensor |
Defective connector contact Connection of low pressure sensor in mistake for high pressure sensor Defective high pressure sensor Defective outdoor unit PCB |
V | V | V | V | ||||||
| JC | Malfunction of low pressure sensor | Defective connector contact Connection of high pressure sensor in mistake for low pressure sensor Defective low pressure sensor Defective outdoor unit PCB |
V | V | V | V | ||||||
| JE | Malfunction of oil pressure sensor or sub-tank thermistor |
Defective connector contact Defective sub-tank thermistor Defective outdoor unit PCB |
V | |||||||||
| JF | Malfunction of oil level sensor or heating heat exchanger thermistor |
Defective connector contact Defective heat exchanger thermistor Defective outdoor unit PCB |
V | |||||||||
| L0 | Malfunction of inverter system | Shortage of power supply capacity Defective power transistor Defective outdoor unit PCB |
V | V | V | V | V | |||||
| L1 | Malfunction of inverter PCB | Defective compressor wiring Defective outdoor unit fan motor Blown fuse Defective inverter PCB |
V | V | V | V | ||||||
| L3 | El.compo. box temperature rise | Fin temperature rise due to short circuit Defective outdoor unit fan motor Defective power transistor Defective outdoor unit PCB |
V | V | V | V | ||||||
| L4 | Malfunction of inverter radiation fi n temperature rise |
Fin temperature rise due to short circuit Defective fi n thermistor |
V | V | V | V | V | |||||
| L5 | nverter instantaneous overcurrent (DC output) |
Defective compressor coil (such as wiring disconnection or insulation failure) Compressor startup failure (mechanical lock) Defective inverter PCB |
V | V | V | V | V | |||||
| L6 | Inverter instantaneous overcurrent (AC output) |
Overcharge of refrigerant amount Shortage of power supply capacity Defective compressor Defective inverter unit |
V | V | V | V | V | |||||
| L8 | Malfunction of overcurrent inverter compressor |
Compressor overloaded Wiring disconnection in compressor coil Disconnection of compressor wiring Defective inverter PCB |
V | V | V | V | V | |||||
| L9 | Malfunction of inverter compressor startup error (Stall prevention) |
The stop valve is not opened Defective compressor Error in wire connections to compressor Large differential pressure before compressor startup Defective inverter PCB |
V | V | V | V | V | |||||
| LA | Malfunction of power transistor | Defective power transistor Defective compressor Defective inverter PCB |
V | V | ||||||||
| LC | Malfunction of transmission between control and inverter PCB |
Defective connection between the inverter PCB and the control PCB External factors (e.g. noise) Defective inverter compressor Defective control PCB (transmission block) |
V | V | V | V | V | |||||
| M1 | Malfunction of central remote controller PCB |
Defective central remote controller PCB | V | V | V | V | V | |||||
| M8 | Malfunction of transmission between optional controllers for centralized control |
Other centralized control power disconnection Centralized control reset switch ON Defective transmission wiring Central remote controller address change |
V | V | V | V | V | |||||
| MA | Improper combination of optional controllers for centralized control |
Improper combination of optional controllers for centralized control More than one master controller is connected Faulty setting of centralized control Defect of centralized control |
V | V | V | V | V | |||||
| MC | Address duplication, improper setting |
Address duplication of central remote controller | V | V | V | V | V | |||||
| PO | Shortage of refrigerant amount (thermal storage unit) |
Shortage of refrigerant Clogged refrigerant piping |
V | V | ||||||||
| P1 | Power voltage imbalance or inverter PCB |
Open phase Interphase voltage imbalance Defective capacitor in the main circuit Defective wiring in the main circuit Defective inverter PCB |
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