LG LP073HDUC/00 Owner's Manual page 15

Self-Diagnosis
FUNCTION:
If the unit has a malfunction, a green OPERATION LED located on the Display PCB used by the unit to
indicate the fault codes.
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.
The fault codes are the mentioned which is as follows:
• Electrical Controls
ON
OFF
Fault Codes
CH 01
CH 02
CH 07
CH 09
CH 10
CH 34
CH 44
CH 45
CH 67
NOTICE
Function
Over heating Protection
Freeze Protection
Remote Mode
Normal
No power / failed board
Indoor Air Thermistor Error
Indoor Coil Thermistor Error
Themostat Wiring Error
EEPROM Check Sum Error
Indoor Fan Error
High Pressure Switch Error
Outdoor Air Thermistor Error (PTHP Only)
Outdoor Coil Thermistor Error (PTHP Only)
Outdoor Fan Error
Description
This feature prevents melting of unit by electrical heater
located inside of the unit at the remote mode (when the
unit is connected with wall thermostat).
This feature prevents freezing of room at low
temperature.
When use the remote mode operation
Control Locations
Display code
°F
°F
°F
Owner's Manual 15