Test Run Flow Chart - LG AMNW07GDBB0 Service Manual

2. Test Run Flow chart

START
Test operation for indoor unit
Operate the unit in cooling mode.
Does Test operation start?
Yes
Is cold air discharged for
more than 3 minutes ?
Yes
Is there any temperature
difference between intake and
discharged air?
Yes
Is the operating current
normal ?
Yes
Operation mode change
to Heating mode
Is hot air discharged ?
After Hot Start
Yes
Normal
• Each indoor unit should be tested.
• If the unit has accessory, it should be tested.
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Only for training and service purposes
*Refer to Part 5.Trouble Shooting
No
- 4. Gas Charging, 6.Electric Parts
No
*Refer to Part 5.Trouble Shooting
- 4. Gas Charging, 5.Cycle Parts
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 Part 5.Troulbe Shooting
- 38 -
Part 4. Test Run
LGE Internal Use Only