Hisense AUC-18HR4SUAA, Technical & Service Manual, Page: 122 / 144

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ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0
107
Fault
code
Fault Description Possible Reason of Abnormality How to Deal With REMARKS
88
The outlet of water
side entrance temperature
sensor fault
1. The cable of the temperature sensor
of
the outlet of water side is failure;
2. The temperature sensor of the outlet
of
water side is failure;
3.The sampling circuit is abnormally
1. Reconnect the able of the
temperature sensor of the outlet of
water side;
2. Replace the temperature sensor of
the outlet of water side;
3. Replace the indoor control board.
89 Humidity sensor failure
1.The humidity sensor is failure;
2. The indoor control board is
abnormally 1. Replace the humidity sensor
components;
2. Replace the indoor control board.
98
Water module DIP switch
function select fault
1.DIP switch select failure;
2.DIP is abnormal;
3.Control board is abnormal. 1.Repalce DIP switch;
2.Change DIP switch;
3.Change control board.
F0（240）
Wire remote controller
EEPROM failure
1.EE of wire remote controller is
abnormal;
2.Wire remote controller control board
is abnormal.
Change wire remote controller .
F1（241）
Wire remote controller
temperature sensor failure
1.Temperature sensor of wire remote
controller is abnormal;
2.Wire remote controller control board
is abnormal.
Change wire remote controller .
F2（242）
Wire remote controller
clock IC failure Wire remote controller control board is
abnormal.
Change wire remote controller .
F3（243）
Wire remote controller
humidity sensor failure
1.Temperature /humidity sensor of wire
remote controller is abnormal;
2.Wire remote controller control board
is abnormal.
Change wire remote controller .
FE(254)
Communication between
main control board
&Wiring remote controller
Fault（display on wiring
remote controller）
1. The wiring between the wiring
controller
to the indoor control board connect
loose;
2. The sequence of the wiring between
the
wiring controller to the indoor control
board
is wrong;
3. The wiring between the wiring
controller
to the indoor control board is failure;
4.The wiring controller is failure;
5. The indoor control board is
abnormally
1.Reconnect the wiring between the
wiring controller to the indoor control
board;
2.Replace the wiring between the
wiring controller to the indoor control
board;
3.Replace the wiring between the
wiring controller to the indoor control
board;
4. Replace the wiring controller;
5. Replace the indoor control board