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Haier air conditioner Edition: 20070116
-40 -
5. Trouble shooting
Indoor Outdoor Possible Reasons
E1 /
1)Room-temperature sensor
2) Indoor PCB
E2 /
1)Heat-exchange sensor
2)Indoor PCB
F21
With the malfunction, LED1
on the outdoor mainboard
blinks 10 times at frequency
of 1 Hz
1) Defrosting temperature sensor
2) Outdoor PCB
F25
With the malfunction, LED1
on the outdoor mainboard
blinks 13 times at frequency
of 1 Hz
1) Exhaust temperature sensor
2) Outdoor PCB
F6
With the malfunction, LED1
on the outdoor mainboard
blinks once at 12 times of 1
Hz and interval of 2 seconds
or so.
1) Ambient temperature sensor
2) Outdoor PCB
E7
With the malfunction, LED1
on the outdoor mainboard
blinks 15 times
1)The outdoor mainboard needs
dehumidification
2)The outdoor mainboard needs
dehumidification
3)The linking cable between the indoor and
outdoor units is not well connected or the
core wires are not well insulated 4)The
indoor PCB might be broken
5)The outdoor PCB might be broken
6)The SPDU might be broken
F11
With the malfunction, LED1
on the outdoor mainboard
blinks17or18 times at
frequency of 1 Hz
1) The wiring of compressor is incorrect or
the connection is poor
2)The SPDU might be broken
3) Compressor might be damaged.
F4
With the malfunction, LED1
on the outdoor mainboard
blinks 8 times at frequency
of 1 Hz
1) The cryogen may have been leaked
during installation, or there may be leakage
in the piping system.
2)Exhaust temperature sensor is broken
3) The outdoor mainboard is damaged and
needs be replaced