Trouble Shooting Guide; Trouble Shooting Guide - LG ZHBW041GA0 Service Manual

3. Trouble shooting Guide

Error
Title
Code
Problem in remote
CH01
air sensor
Problem in refrigerant
CH02
inlet(liquid) side sensor
Problem in refrigerant out-
CH06
let(gas) side sensor
Problem in water tank
CH08
sensor
Problem in solar pipe
CH13
sensor
Problem in Water-inlet
CH17
sensor
Problem in Water-outlet
CH18
sensor
Problem in electric backup
CH19
heater outlet sensor
Check Flow Chart
Yes
Is the sensor detector installed in
its original position?
-Check whether the sensor deviates
or changes the position
Yes
Is the sensor connector pin
missing or is the sensor wire
damaged?
Yes
Is the sensor resistance or
the voltage across the sensor
coupling normal?
Yes
Replace the Main PCB(Indoor)
Description
Indoor unit sensor open / short
No
• Re-attach the sensor to the main PCB.
No
• Adjust the position of the sensor detector.
No
• Replace the sensor
No
• Replace the sensor
- 74 -
Cause of error
1. Sensor mismatch on the Main
PCB(Indoor)
2. Main PCB(Indoor) malfunction
3. Sensor failure
(Reason of major malfunction)
4. Temperature sensor maximum
reached
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