Haier AW07LC2VHA, Technical Overview

Page: 105 / 122

REFERENCES
PAGE 105
ENGLISH
FLOW CHARTS
Caution: Be sure to turn power switch off before connecting or disconnecting the
connector, or parts may sustain damage.
YES
YES
NO
NO
Turn on the unit with the remote
control. Measure the temperature at
the exhaust temperature sensor of the
compressor on the outdoor unit.
Does the temperature exceed 230°F?
The refrigerant may have leaked during
installation or there may be leakage in
the piping system. There may be other
causes for the overly high exhaust
temperature.
Malfunctions occur after running
for some time even though the
temperature is running below 230°F.
Pull out the exhaust sensor and
measure its resistance at standard
temperatures according to the
resistance temperature table
The sensor is damaged and must be
replaced.
Is there a deviation in the results?
The outdoor mainboard is damaged and
must be replaced.
LED1 flashes 8 times
When the temperature compressordischarge temperature is above 230°F