High Work-Intense Protection - Haier AS12GB3HRA Service Manual

High work-intense protection

11.4.13
Outdoor display
Method of
malfunction
detection
Malfunction
detection
conditions
Supposed
causes
Troubleshooting
Electrify the machine again and turn it
on with the remote controller, check
whether the wind temperature is below
65 (EEPROM)
The malfunction is reported
after the machine has run for
The indoor unit blows poorly
due to blocked filters or poor
condition of the fan?
Use
piezometer
pressure of system
LED1 flash 21 times
High work-intense control is activated in the heating mode if the temperature
being sensed by the heat exchanger thermistor exceeds the limit.
Activated when the temperature being sensed by the heat exchanger exceeds
65 twice in 30 minutes.
heat-exchange sensor
Insufficient gas
Be sure to turn off power switch before connect or disconnect connector, or
else
parts damage may be caused
some time?
NO
NO
to measure the
1 Check whether room temperature
and pipe temperature sensor is in
YES
good condition .
2 the temperature monitoring circuit
YES
1 Clean the filters
2 Replace the fan motor
51
Service diagnosis
Domestic air conditioner