Error codes
If the unit detects an error, it is shown on the unit display using an error code. In the list below, the individual
error codes with the respective cause and possible remedial measures are listed. Repair work may only be
carried out by qualified specialist personnel.
Error
code
Cause
Remedial measures
E1
Room temperature sensor faulty
Replace room temperature sensor
E2
Evaporator package sensor faulty
Replace evaporator package sensor
E3
Outside temperature sensor faulty
Replace outside temperature sensor
E4
Condenser package sensor faulty
Replace condenser package sensor
E5
Evaporator fan motor defective
Replace evaporator fan motor
E6
Condenser fan motor defective
Replace condenser fan motor
E7
Control board, power PCB or display board
communication error
Replace control board, power PCB or display
board
E8
Compressor outlet temperature sensor faulty
Replace compressor outlet temperature
sensor
CP
External enabling contact open, external ena-
bling signal not issued
Jumper contact, check on-site controller
OF
Condensate liquid level switch triggered
Discharge condensate via emergency
drainage
21
