ENG
11
2) Press again button C (up arrow) for more than 5 sec to switch back from winter to summer
mode operation.
Acknowledging alarms:
1) Press any button to acknowledge (Flashing).
Troubleshooting
FAULT
POSSIBLE REASONS
HANDLING
Compressor does not
start
Waiting for compressor delay
time
Check CoP->CSt
Defrost in progress
Check CoP->Pot/Pod
Line voltage to compressor too
low or too high
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 open
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->P<H
Alarm does not sound
Alarm delayed
Check ALA->Htd, Abd
Check Pud->Pdd
Brightness display is
weak
Ambient light sensor broken
Replace sensor
Shift between Eco and
Normal mode is not
feasible on ambient light
change
Ambient light sensor broken or
light level not set properly
Check Eng->SLd, SLn
FAULT
POSSIBLE REASONS
HANDLING
E01, E02 or E03 is
shown on display
E01: Sensor S1 defective
Replace sensor
Eo2: Sensor S2 defective
E03: Sensor S3 detective
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
You should address service personnel for all the above issues.
