Samsung Electronics 148
Troubleshooting
■
Diagnosis and Adjustment (Error Code)
► Error code related to the Communications / Settings / HW
(cont.)
Error mode Cause
E-202
Communication error between indoor and outdoor units (Communication error on all indoor unit, outdoor unit
communication cable error)
E-203 Communication error between main and sub outdoor units
E-205 Communication error on all PBA within the outdoor unit C-Box, communication cable error
E-206
E206-C001: HUB PBA communication error / E206-C002: FAN PBA communication error
E206-C003: INV1 PBA communication error / E206-C004: INV2 PBA communication error
E206-C005 : Water Hub PBA communication error
E-211 When single indoor unit uses 2 MCU ports that are not in series.
E-212 If the rotary switch (on the MCU) for address setting of the indoor unit has 3 or more of the same address
E-213
When total number of indoor units assigned to MCU is same as actual number of installed indoor units but there
is indoor unit that is not installed even though it is assigned on MCU
E-214
When number of MCU is not set correctly on the outdoor unit or when two or more MCU was installed some of
them have the same address
E-215 When two different MCU’s have same address value on the rotary switch
E-216 When indoor unit is not installed to a MCU port but the switch on the port is set to On.
E-217
hen indoor unit is connected to a MCU port but indoor unit is assigned to a MCU and the switch on the port is set
to Off
E-218
When there’s at least one or more actual number of indoor unit connection compared to number of indoor units
assigned to MCU
E-219 Error on temperature sensor located on MCU intercooler inlet (Short or Open)
E-220 Error on temperature sensor located on MCU intercooler outlet (Short or Open)
E-221 Error on outdoor temperature sensor of outdoor unit (Short or open)
E-224 Error on water temperature sensor of main outdoor unit (Short or Open)
E-225 Error on control box temperature sensor of main outdoor unit (Short or Open)
E-231 Error on COND OUT temperature sensor of main outdoor unit (Short or Open)
E-241 COND OUT sensor is detached
E-251 Error on discharge temperature sensor of compressor 1 (Short or Open)
E-257 Error on discharge temperature sensor of compressor 2 (Short or Open)
E-262 Discharge temperature sensor of compressor 1 is detached from the sensor holder on the pipe
E-263 Discharge temperature sensor of compressor 2 is detached from the sensor holder on the pipe
E-266 Top sensor of compressor 1 is detached
E-267 Top sensor of compressor 2 is detached
E-269 Suction temperature sensor is detached from the sensor holder on the pipe
E-276 Error on top sensor of compressor 1 (Short or Open)
E-277 Error on top sensor of compressor 2 (Short or Open)
E-291 Refrigerant leakage or error on high pressure sensor (Short or Open)
E-296 Refrigerant leakage or error on low pressure sensor (Short or Open)
E-308 Error on suction temperature sensor (Short or Open)
E-311 Error on temperature sensor of double layer pipe/liquid pipe(sub heat exchanger) (Short or Open)
E-321 Error on EVI (ESC) IN temperature sensor (Short or Open)
E-322 Error on EVI (ESC) OUT temperature sensor (Short or Open)
E-323 Error on suction sensor 2 (Short or Open)
E-346 Error due to operation failure of Fan2
E-347 Motor wire of Fan2 is not connected
4-2 Service Operation (cont.)
4-2-3 Number Display M
ethod (Outd
oor Unit, MCU, Cable remote control, wall-mount, etc.)
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