Haier AD482MPERA - Page 251

250
LD
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code definition Failure description Remarks
26-0
1A
Outdoor and indoor
communication failure
For continuous 200 cycles’detection, connected indoors
cannot found.
Resumable
26-1
For continuous 270 secs detection, qty of indoors is less than
the set qty.
26-2
For continuous 170 secs detection, qty of indoors is more
than the set qty.
27 1B
Oil temp.
too high protection
(Toil)
Toil≥120degree(E) at interval of 25msec for twice continuously,
and over the set value, then stop and alarm; 3 minutes later,
resume automatically. If it occurs 3 times in an hour, confirm
the failure.
Once confirmation,
Un-
Resumable
28 1C
High pressure sensor Pd
failure
AD value is below 11(open circuit) or over 1012(short circuit)
for 30 seconds, in defrosting and within 3 minutes after
defrosting, no alarm
Resumable
29 1D
Low pressure sensor Ps
failure
AD value is below 11(open circuit) or over 1012(short circuit)
for 30 seconds, in defrosting and within 3 minutes after
defrosting, no alarm
Resumable
30-0 1E
High pressure switch HPSi
failure
Power on, OFF is confirmed for 2 secs continuously, alarm.
Once confirmation,
Un-
Resumable
30-1 1E
High pressure switch HPSi
failure
30-2 1E
High pressure switch HPS2
failure
30-3 1E
Water flow switch WQS
failure (Water Cooled VRF)
Disconnected for 10 secs continuously, alarm. Three times an
hour, failure confirmed.
32-0 20
Outlet temp.Of subcooler
tsco failure
AD value is below 11(open circuit) or over 1012(short circuit)
for 30 seconds, in defrosting and within 3 minutes after
defrosting, no alarm
Resumable
32-1 20
Liquid pipe SC temp.of
subcooler Tliqsc failure