Samsung

Samsung Self-diagnostic Malfunction (Error) Codes

Malfunction Code	Content of Abnormality	Notes
101	DVM,DPM,DVS:Outdoor Unit Communication Error (Indoor unit can’t receive communication) SINGLE: Indoor Unit Panel - Main communication error
102	Outdoor Unit to Indoor Unit communication error
103	Communication Error Between Indoor Unit Panel and Main
104	Communication Error
105	Communication Error in between sensing space module and Indoor unit
106	Communication Error Between LCD and Panel
107	Communication Error Between LCD Outdoor Unit
108	Error due to repeated address setting (When 2 or more devices has same address within the network)
109	Communication error - indoor address is not completed. Check communication wire between indoor and outdoor, outdoor unit quantity, indoor address setting status.
121	Error of ROOM Temperature Sensor in Indoor unit short/open
122	Error of Evaporator_in Sensor of Indoor unit short/open
123	Error of Evaporator_out Sensor of Indoor unit short/open
124	Indoor Unit Communication Error (Indoor Unit / Outdoor Unit Communication Error displayed in Outdoor unit)
125	Eva_mid2 Sensor of Indoor unit short/open
127	Indoor Temperature (Suction Temperature) Sensor breakaway Error
128	Breakaway of Indoor unit Evaporator_in Sensor
129	Breakaway of Indoor unit Evaporator_out Sensor
130	Breakaway of evaporator in and evaporator out sensors in indoor unit at the same time
131	Sub(Electronic) Heater Sensor 1 Error
132	Sub(Electronic) Heater Sensor 2 Error
133	Sub(Electronic) Heater Sensor 3 Error
134	Shutter Sensor Error (In case of model which have two shutter, upper Error : Aurora)
135	Perfect Fan Sensor Error
136	Shutter Sensor Error (In case, model which have two shutter Error in bottom : Aurora)	Aurora Bottom Sensor
137	VOC SENSOR OPEN/SHORT ERROR
138	GAS SENSOR OPEN/SHORT ERROR
139	ERV CO2 SENSOR OPEN/SHORT ERROR
140	Indoor Dust sensor Error
141	IAQ CO2 SENSOR OPEN/SHORT ERROR
142	Indoor Unit Humid Sensor short/open
143	Sensing space Sensor Error
144	Eva2_in Sensor of Indoor Unit short/open
145	Eva2_out Sensor of Indoor Unit short/open
146	EEV Inlet Sensor short/open
147	Indoor Eva2_in Sensor break away Error
148	Indoor Eva2_out Sensor break away Error
149	AHU Master Indoor room sensor setting error
150	RESERVED(DMS-SNET3 Error)
151	Open error of electoronic expansion valve in indoor unit(2nd)	Check MCU addressing if HR
152	Close error of electoronic expansion valve in indoor unit(2nd)	Check MCU addressing if HR
153	Dectect Indoor float s/w 2nd
154	Indoor unit Fan Error
155	Indoor unit Fan2 Error
156	Indoor unit (EEV2) open error 2nd
157	Indoor unit (EEV2) close error 2nd
158	UDoor upper operation Error	(check Photo Sensor or operating Relay Error)
159	UDoor lower operation Error	(check Photo Sensor or operating Relay Error)
161	Cooling and Heating mixed operating Error
162	Outdoor unit EEPROM error
163	EEPROM OPTION SETTING ERROR
165	Elect Discharge Temp Protect Error
166	Electric motor related to no wind Error
167	Unsing peripheral in Indoor Unit Option DIP S/W set Error
168	IAQ Safety S/W Open Error
169	AHU EEV Fault detection error
170	Error; Fahrenheit /Celsius degree use same time (Indoor Unit which selected Celsius)
174	ERV + heat exchanger inlet temperature sensor short / open
175	Outdoor built-in indoor temperature sensor short / open error
177	In hydro box, take place emergency signal Error
180	MCU SOL Valve cooling/heating opening 1st at the same time
181	MCU SOL Valve cooling/heating opening 1st at the same time
185	Missconnect power line to Indoor Unit communication line
186	sMPI(SPI) Feedback Error
187	K1Filter Feedback Error
190	While in checking pipe, no change Temp in Eva_in or change Temp Eva_in of other Indoor unit
191	While in checking pipe, no change Temp in Eva_out or change Temp Eva_out of other Indoor unit
192	Indoor Unit COVER OPEN (Indoor unit switch for safety)
193	Indoor Panel Zero-Crossing Error
194	Indoor Main Zero-Crossing Error
195	IAQ safety S/W Open Error
198	Error due to disconnected thermal fuse of indoor unit
199	Error in Display Status of No pipe checking
201	After complete Tracking 5 times, mismatch of the indoor unit quantity set with those found by ODU error (some of indoor units disconnected communication wire, IDU powered off etc.)
202	System Down (All Indoor unit Short) due to Communication Error
203	Outdoor Unit Communication Error Between MAIN-- SUB
204	After completing Tracking 5 times, there is different with a number of set MCU and communicated MCU
205	Communication Error on all PBA within the outdoor unit C-Box, communication cable error Communication Error Between Outdoor Unit Inv Micom -- Fan Motor Micom
206	Communication Error Between Outdoor Unit Main PBA - Sub PBA
206-C001	Communication Error Between Outdoor Unit Main PBA - Sub PBA
206-C002	FAN PBA communication error
206-C003	INV1 PBA communication error
206-C004	INV2 PBA communication error
210	Can NOT communicate with MCU over 2 min
211	Indoor unit connected with confluence kit without continunity
212	Indoor unit connected with confluence kit and setting address was overlapped more than 3
213	MCU address not matched with indoor unit address
214	MCU address not matched with outdoor unit address
215	Rotary switch for indoor unit address in MCU was over lapped among MCUs
216	DIP switch for indoor unit setting was ON position even though indoor unit was not connected
217	DIP switch for indoor unit setting was OFF position even though indoor unit was connected
218	Setting number of indoor unit in MCU is larger than installed indoor units
219	Error on temperature sensor located on MCU intercooler inlet (Short or Open) MCU Over Cooling In Sensor Open/Short
220	Error on temperature sensor located on MCU intercooler outlet (Short or Open) MCU Over Cooling Out Sensor Open/Short
221	OUT temperature SENSOR ERROR (OPEN/SHORT) - ERROR LEVEL: more than 4.9V(-50oC), less than 0.4V(93oC)
226	OUT_temperature temperature Sensor breakaway Error
231	COND_OUT Main temperature SENSOR ERROR (OPEN/SHORT) - ERROR LEVEL: More than 4.9V(-50oC), less than 0.4V(93oC)”
236	COND_OUT Sub1 temperature SENSOR ERROR (OPEN/SHORT) - ERROR LEVEL: More than 4.9V(-50oC), less 0.4V(93oC)”
237	COND temperature SENSOR ERROR (OPEN/SHORT) - ERROR LEVEL: More than 4.9V(-50oC), less than 0.4V(93oC)
241	COND_MID or COND OUT Sensor of Outdoor Unit breakaway Error
242	Outdoor Unit Heater Error
246	COND_OUT 1 breakaway
251	PWM DISCHARGE temperature SENSOR ERROR (OPEN/SHORT) - ERROR detect Condition: detect Outdoor temperature more than -10oC - ERROR LEVEL: More than 4.95V(-30’C), less than 0.5V(151’C)
256	Fixed COMP 1 DCHRG SENSOR ERROR (OPEN/SHORT) - ERROR detect Condition: detect Outdoor temperature more than - ERROR LEVEL: More than 4.95V(-30’C), less than 0.5V(151’C)
257	Fixed COMP 2 DCHRG SENSOR ERROR (OPEN/SHORT) - ERROR detect Condition: detect Outdoor temperature more than -10oC - ERROR LEVEL: more than 4.95V(-30’C),less than 0.5V(151’C)”
258	Fixed COMP 3 DCHRG SENSOR ERROR (OPEN/SHORT) - ERROR detect Condition: Outdoor temperature more than -10 detect oC - ERROR LEVEL: more than 4.95V(-30’C),less than 0.5V(151’C)
261
262
263
264
265
266
267
268
269
212
213
214
215
216
217
218
219
220
211
212
213
214
215
216
217
218
219
220