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AU482FIBHA Fault Code List
Digital
readout
Location Description
Is it
fixable
01
TE circuit of defrost
temperature sensor,
outdoor unit
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit)
for 60 seconds. The fault is fixable.
Yes
02
TA circuit of ambient
temperature sensor
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit)
for 60 seconds. The fault is fixable.
Yes
03
TS circuit of suction
line temperature
sensor
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit)
for 60 seconds. The fault is fixable.
Yes
04
TD circuit of discharge
line temperature
sensor
After 3 minutes of compressor operation, the
detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit)
for 60 seconds. Fixable when below 80°C.
Yes
05
TC circuit of central
temperature sensor,
outdoor unit
condenser
The detected sensor value is below 20H
(open-circuit) or above 1000H (short-circuit)
for 60 seconds.
。
Yes
06
Overcurrent
An alarm is given five seconds after the
current limit is exceeded. Where there are 3
alarms within 30 minutes, the fault code is
displayed. The fault is not fixable.
No
07
Current transformer
circuit
When the compressor is shut off, the detected
current of current sensor is above 15A, and
when the compressor is started, the operating
frequency is above 60Hz and the detected
current is below 5A. The fault is fixable.
08
Overload protector
circuit of inverter
compressor
The overload protector of inverter compressor
is activated.
09
IPM protection
IPM
overcurrent,
short-circuit,
overtemperature and undervoltage. When the
fault occurs three times within 30 minutes, an
alarm is given and the fault is not fixable.
10
Base board EEPROM
error
857 EEPROM data access error, 11 flashes.
The fault is not fixable.
11
Discharge line
temperature protection
(TD)
When the compressor is started, the
temperature detected by TD1 sensor is above
120°C. The compressor is shut off in 5
seconds and an alarm is given. Where there
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Summary of Contents for H-MRV AF092FCBHA
Page 121: ... _ VbTZR Zb _ UZdZ_ Vb AU242FHBHA PCB top layer printed diagram 121 ...
Page 122: ... _ VbTZR Zb _ UZdZ_ Vb AU242FHBHA PCB bottom layer printed diagram 122 ...
Page 127: ... _ VbTZR Zb _ UZdZ_ Vb AU482FIBHA high voltage PCB printed diagram 127 ...
Page 131: ... _ VbTZR Zb _ UZdZ_ Vb AU482FIBHA low voltage PCB printed diagram 131 ...
Page 152: ... a__WcU S c a V e a Wc AB092 182FCBHA PCB printed diagram 152 ...
Page 156: ... a__WcU S c a V e a Wc AE FCBKA PCB printed diagram 156 ...
Page 199: ...MEMO Commercial Air Conditioner ...