LG Therma V AHBW A0 Series Service Manual page 29

2. Test Run Flow chart
Operate the unit in cooling mode.
Does test operation start?
Yes
Is cold water discharged for
more than 3 minutes ?
Yes
Is there any temperature
difference between intake and
discharged water?
Yes
Is the operating current
normal ?
Yes
Operation mode change
to Heating mode
Is hot water discharged ?
After hot start
Yes
Normal
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Start
No
Refer to part4, 6 electric part
No
Refer to part4, 5 cycle part
No
No
* Check the load (In / Out Temp.)
* Check pipe length and amount of
refrigerant
* Check for abnormal sound in
outdoor unit (comp.,fan, others )
No
Refer to Troubleshooting
- 29 -
Guide
LGE Internal Use Only
Features