52
Problem
Probable cause
Remedy
Compressor does not start
Waiting for compressor delay timer
Defrost in progress
Line voltage to compressor too low
or too high
Check CoP->CSt
Check CoP ->Pot /Pod
Check dEF ->dit, dot
Check CoP->uLi, uLo, uHi
Fan does not start
Door is open or door contact is defective
Fan stops when door is opened
Check that door contact is ok
Defrost does not start
Controller in pull-down mode
Defrost might be delayed during pull-down
Check parameter Pud->Pdi
Alarm does not sound
Alarm delayed
Check ALA->Htd, Abd
Check Pud->Pdd
Display brightness is weak
Ambient light sensor broken
Replace sensor
Shift between Eco and Normal
mode does
not happen on ambient light change
Ambient light sensor broken
or light level not set properly
Check Eng->SLd, SLn
E01, E02 or E03 is shown on display
E01: Sensor S1 defective
E02: Sensor S2 defective
E03: Sensor S3 defective
Replace sensor
Display alternates between Con and
temperature
Condenser too hot
Clean condenser
Check Con ->CAL, CbL
Display alternates between Hi and
temperature
Temperature too high
Check ALA->HAt
Display alternates between Lo and
temperature
Temperature too low
Check ALA -> LAt
Display shows dEf
Defrost in progress
Check diS ->SdF
ERC
102 Reference manual – APPENDIX III: TROUBLE SHOOTING
APPENDIX III: TROUBLESHOOTING
