Haier AW07LC2VHA Technical Overview page 100

Check to see that the terminal on the
outdoor main board is properly inserted.
Using the remote control, turn on
the unit in Cool Mode and check to
see if the motor is running.
YES
Measure the voltage between
terminals 3 and 6 of the connector,
about 0-5VDC
Is it normal?
The motor of the outdoor unit is
damaged and needs to be replaced.
PAGE 100
FLOW CHARTS
LED 1 flashes 9 times
DC fan motor error is detected by checking the fan running condition
When the data of the EEPROM is in error or the EEPROM is damaged
DC fan motor protection due to a fault in the DC fan motor
• DCfan motor protection due to the DC fan motor fault
• DC fan motor protection due to faulty PCB
Caution: Be sure to turn power switch off before connecting or disconnecting the connector, Caution: Be sure to turn power switch off before connecting or disconnecting the
or parts may sustain damage. connector, or parts may sustain damage.
NO
Is it normal?
YES
YES
NO
Reinsert the terminals.
NO
Measure the voltage between terminals
1 and 3 of the fan motor connector on the
main board about 310VDC. Measure the
voltage between terminals 3 and 4 of the
connector about 15VDC. Measure the
voltage between terminals 5 and 3 of the
connector about 1-6VDC.
Is it normal?
The main board of the outdoor
unit is damaged and needs to be
replaced.
REFERENCES
NO