Haier AV10IMWEWA Design, Installation & Maintenance Instruction page 251

LD Indication
indication on wired
on master controller
unit (hex)
26-0
1A
26-1
26-2
27 1B
28 1C
29 1D
30-0 1E
30-1 1E
30-2 1E
30-3 1E
32-0 20
32-1 20
Failure code definition
Outdoor and indoor
communication failure
Oil temp.
too high protection
(Toil)
High pressure sensor Pd
failure
Low pressure sensor Ps
failure
High pressure switch HPSi
failure
High pressure switch HPSi
failure
High pressure switch HPS2
failure
Water flow switch WQS
failure (Water Cooled VRF)
Outlet temp.Of subcooler
tsco failure
Liquid pipe SC temp.of
subcooler Tliqsc failure
Failure description
For continuous 200 cycles'detection, connected indoors
cannot found.
For continuous 270 secs detection, qty of indoors is less than
the set qty.
For continuous 170 secs detection, qty of indoors is more
than the set qty.
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.
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
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
Power on, OFF is confirmed for 2 secs continuously, alarm.
Disconnected for 10 secs continuously, alarm. Three times an
hour, failure confirmed.
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
250
Remarks
Resumable
Once confirmation,
Un-
Resumable
Resumable
Resumable
Once confirmation,
Un-
Resumable
Resumable