Haier AU052FNERA - Page 22

20
Failure code
Digital tube
indication on
master unit
Failure code denition Failure description Remarks
53
CT current is too low or
current sensor fault
3 minutes after recovery
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
54
Valve plate module
communication fault
Cannot receive valve plate module signal in 200 continuous
rounds or receive wrong data,recover automatically when
received right data.
Resumable
55 Valve plate module LEV fault
During cooling operation, when Tc2 ≤ Tao-10 ° C and Tc2
≤ average Tc2 temperature of the internal unit + 0 ° C for 1
minute, an alarm will be issued. When Tc2 ≥ Tao-5 ° C and
TC2 ≥ average Tc2 temperature of the internal unit + 5 ° C
for 1 minute When the fault is resolved.
Resumable
56
Valve plate module temp.too
high
When Tc1 ≥ 85°C is detected for 5 seconds, the thermal
storage module overheating protection is reported.
Tc1 ≤ 80°C for 5 seconds to recover. 3 times lockouts per
hour.
Once
conrmation,
un-resumable
57
Communication failure
between valve plate module
and host computer(sending by
valve plate)
Communication failure between valve plate module and
host computer
Resumable
58
Tc1 temp sensor of valve plate
error(sending by valve plate)
Tc1 temp. sensor cannot connect with valve plate module Resumable
59
Tc2 temp sensor of valve plate
error(sending by valve plate)
Tc2 temp. sensor cannot connect with valve plate module Resumable
60
Valve plate module
error(sending by valve plate)
Reserved Resumable
61
Valve plate module
error(sending by valve plate)
Reserved Resumable
62
Valve plate module
error(sending by valve plate)
Reserved Resumable
63 Valve plate dial setting error
No valve plate module dial but the valve plate module is
detected.
Once
conrmation,
un-resumable
64 CT current is too high
CT current exceeds specied value, 3 minutes after
recovery
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
71-0 Upper DC motor blocked
Running at speed below 20rpm for 30s, or at speed of
70% lower than the target for 2 minutes, 2 minutes and 50
seconds later after stop, resume automatically. It occurs 3
times in an hour, conrm the failure.
Once
conrmation,
un-resumable
71-1 Lower DC motor blocked
81
IPM modular temp. too high
protection
IPM modular temp.≥185°F(85°C)
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
82 Compressor current protection
Compressor current exceeds specied value, 3 minutes
after recovery
83 Outdoor model set error Model and the number of fans do not match Un-resumable