Haier AW07LC2VHA Technical Overview page 104

Turn on the unit with the remote
control. Check to see if the
compressor starts normally.
Does it start normally?
Test the outdoor power supply
(+310VDC) with a multimeter.
Check to see if the power is >150V
or<390V
Is 230V system power OK?
The issue may be power source related.
Check with your service provider.
PAGE 104
FLOW CHARTS
LED1 flashes 6 times
A voltage signal is fed from the voltage detection circuit to the microcomputer
• Improper supply voltage
•The IPM Module is defective
• The outdoor PCB is defective
Caution: Be sure to turn power switch off before connecting or disconnecting the connector, or
parts may sustain damage.
NO
NO
REFERENCES
YES
Error code may have resulted from
power source fluctuation
YES
Change the IPM module
NO
YES
Change the IPM module