Failure Code - Haier MRVIII-S AV08NMSETA Installation Manual

Failure code

Failure code
Inverter outdoor unit failure code
Digital tube Indication
indication on wired
on master controller
unit (hex)
20 20-0
20 20-1
21 21
22 22
23 23
24 24
26 26-0
26-1 26-1
26-2 26-2
27 27
28 28
Failure code
Failure description
defi nition
Defrosting
AD value is below 11(open circuit) or
temp.sensor
over 1012(short circuit) for 60seconds, in
TE1 failure
cooling mode, if the sensor is abnormal,
Defrosting the unit does not deal with it, besides,
in defrosting and within 3 minutes after
temp.sensor
defrosting, no alarm
TE2 failure
AD value is below 11(open circuit) or
Ambient temp.
over 1012(short circuit) for 60seconds,
sensor Ta
in defrosting and within 3 minutes after
failure
defrosting, no alarm
AD value is below 11(open circuit) or
Suction temp.
over 1012(short circuit) for 60seconds,
sensor Ts
in defrosting and within 3 minutes after
failure
defrosting, no alarm
After compressor is running for 5 minutes,
Discharging AD value is below 11(open circuit) or
temp.sensor Td over 1012(short circuit) for 60seconds, in
failure course of startup, defrosting and within 3
minutes after defrosting, no alarm
AD value is below 11(open circuit) or over
Oil temp.sensor 1012(short circuit) for 60seconds, if Ta<=-
Toil failure 10degree or ET<=-10degree, within 5
minutes, no alarm
For continuous 200 cycles, can not fi nd
connected indoors
Indoor For continuous 300seconds, the searched
communication indoor quantity is less than the set quantity.
failure
For continuous 300seconds, the searched
indoor quantity is more than the set
quantity.
Toil≥110degree at interval of 25msec for
Oil temp. twice continuously, and over the set value,
too high then stop and alarm; 3 minutes later,
protection(Toil) resume automatically. If it occurs 3 times
in an hour, confi rm the failure.
AD value is below 11(open circuit) or
High pressure
over 1012(short circuit) for 30seconds,
sensor Pd
in defrosting and within 3 minutes after
failure
defrosting, no alarm
25
Remarks
Resumable
Resumable
Resumable
Resumable
Resumable
Resumable
Once
confi rmation,
un-
resumable
Resumable