Westinghouse WHP09WMA21S Service Manual page 22

Outdoor
EEPROM in
trouble
Compressor
exhaust
temperature too
high protection
Outdoor ambient
temperature
sensor in trouble
Compressor shell
temperature too
high protection
Anti-freeze
protection with
cooling or
overload
protection with
heating in indoor
unit
Compressor drive
in trouble
Outdoor fan motor
locked rotor
protection
Outdoor coil
anti-overload
protection with
cooling
★ ★ ★
★
O
★ ★
★
O
O O
O O
★
O O
★
- 21 -
a. The EEPROM chip is loose;
b. The EEPROM chip inserted with opposite
direction;
c. The EEPROM chip is failure
a. The compressor exhaust temperature sensor is
failure;
b. The refrigerant of the unit is not enough
a. The outdoor ambient temperature sensor
connect loose;
b. The outdoor ambient temperature sensor is
failure;
c. The outdoor control board is failure
a. The compressor exhaust temperature sensor
connect loose
b. The refrigerant of the unit is not enough
a. The indoor coil temperature sensor connect
loose;
b. The indoor coil temperature sensor is failure;
c. The indoor control board is failure
d. The refrigerant system is abnormal.
a. The outdoor drive board is failure;
b. The compressor is failure
c. The outdoor control board is failure
a. The connection of the outdoor fan motor is loose;
b. There are something block the outdoor fan;
c. The fan motor is failure;
d. The outdoor control board is failure
a. The refrigerant is too much;
b. The outdoor fan motor is failure;
c. The outdoor fan is broken;
d. The condenser is dirty;
e. The air inlet and air outlet of the indoor unit and
the outdoor unit is not normally