Self-Diagnosis - LG LP155CED1 Owner's Manual

Self-Diagnosis

FUNCTION:
If the unit has a malfunction, a green OPERATIONLED located on the Display PCB used by the unit to
indicate the errors.
USE:
If the customer has to register a complaint to the service center, he can be very clear about registering
the complaint that what is happening & by referring the user's manual the customer can clearly define
the problem.
So that the engineer should go fully prepared with the prescribed tools to be used regarding that
problem. It also keeps the customer aware about the unit.
Here are some of the problems defined below for which the LED indicates by flashing number of times
the error has been reconrded against it.
The errors are the mentioned in the (Table 13) which is as follows:
ON
OFF
Fault Codes
CH 01
CH 02
CH 03
CH 04
CH 05
CH 06
CH 07
Normal
No power / failed board
Indoor Air Thermistor Error
Indoor Coil Thermistor Error
Outdoor Air Thermistor Error (PTHP Only)
Outdoor Coil Thermistor Error (PTHP Only)
Mode Error
Setpoint Error
Bad Thermistor Wiring
Control Locations
Owner's Manual 15