Haier AW07LC2VHA Technical Overview page 107
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Also See for AW07LC2VHA:
- Installation manual (30 pages) ,
- User manual (8 pages) ,
- User manual (8 pages)
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(A)
Check the indoor main
board
Test the outdoor power
supply
If both 230VAC and 310VDC
are available, measure +12V
YES
Measure the AC voltage between pins 1
and 3 on the terminal of the outdoor unit
with a multimeter
If the value varies between 0 and 80VAC, the outdoor
main board is damaged. Replace it.
FLOW CHARTS
NO
If 230VAC is available but
310VDC is not, the power
module is damaged.
Replace it.
NO
REFERENCES
YES
Measure the voltage between
Jumpers 3 and 4 of IC1 on the indoor
main board with a multimeter
Is the voltage a consistent
value of 0VDC to 5VDC?
The indoor mainboard is
damaged. Replace it.
Test the outdoor power
supply
If the value is constant at about 30V, the main
board is damaged. Replace it.
The outdoor main board is damaged.
Replace it.
NO
YES
NO
PAGE 107
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