Fujitsu R407C User Manual

ERROR
CONTENTS
CAUSE
COUNTERMEASURE
Compressor 2
error
1. Check if the wiring of discharge
temperature sensor THD2 loosens or
comes off. And check the resistance of
sensor. If it's abnormal, replace sensor.
2. Check compressor power relay 2. If
it's abnormal, replace power relay.
3. Check CN25 (compressor 2) 12V
voltage output on outdoor unit control
printed circuit board. If it's abnormal,
replace printed circuit board.
4. Check magnetic contactor 2. If it's
abnormal, replace contactor.
5. Check additional refrigerant amount
and recharge suitable refrigerant.
6. Temporary data transmission trouble
due to affect of noise, etc. Operation is
not affected.
7. Compressor overload operation
Check "High-pressure error". Motor
protector is reset at 61 C +/-9 C.
8. Check compressor. If it's faulty,
replace compressor.
1. Discharge temperature
sensor THD2 is faulty.
3. Outdoor unit control printed
circuit board is faulty.
4. Magnetic contactor 2 is
faulty.
5. Lack of refrigerant.
6. After 2 and half an hours
have elapsed since error is
displayed, error detection
is performed again and error
is not displayed.
7. Compressor motor protector
is operated.
8. Compressor is faulty.
1. Error occurrence condition
After thirty minutes have
elapsed since compressor 2
starts to work, discharge
temperature 2 does not
reach to outdoor
temperature plus 10 C.
2. Relevant operation
1) After compressor error
occurs, compressor
recovery operation is
performed. However, if
defrosting control or oil
recovery operation is
performed, compressor
recovery is not operated.
2) Error is displayed on LED of
outdoor unit and output to
communication bus line.
3. Clearance
When 2 hours have elapsed
after error occurrence.
*Counting of 2-hour counter
starts if error occurs on any
compressors. Error is
cleared by turning power off.
2. Compressor power relay 2
is faulty.
0A
Compressor 3
error
1. Check if the wiring of discharge
temperature sensor THD3 loosens or
comes off. And check the resistance
of sensor. If it's abnormal, replace
sensor.
2. Check compressor power relay 3. If
it's abnormal, replace power relay.
3. Check CN26 (compressor 3) 12V
voltage output on outdoor unit control
printed circuit board. If it's abnormal,
replace printed circuit board.
4. Check magnetic contactor 3. If it's
abnormal, replace contactor.
5. Check additional refrigerant amount
and recharge suitable refrigerant.
6. Temporary data transmission trouble
due to affect of noise, etc. Operation
is not affected.
7. Compressor overload operation
Check "High-pressure error". Motor
protector is reset at 61 C +/-9 C.
8. Check compressor. If it's faulty,
replace compressor.
1. Discharge temperature
sensor THD3 is faulty.
3. Outdoor unit control printed
circuit board is faulty.
4. Magnetic contactor 3 is
faulty.
5. Lack of refrigerant.
6. After 2 and half an hours
have elapsed since error is
displayed, error detection
is performed again and error
is not displayed.
7. Compressor motor protector
is operated.
8. Compressor is faulty.
1. Error occurrence condition
After thirty minutes have
elapsed since compressor 3
starts to work, discharge
temperature 3 does not
reach to outdoor
temperature plus 10 C.
2. Relevant operation
1) After compressor error
occurs, compressor
recovery operation is
performed. However, if
defrosting control or oil
recovery operation is
performed, compressor
recovery is not operated.
2) Error is displayed on LED of
outdoor unit and output to
communication bus line.
3. Clearance
When 2 hours has elapsed
after error occurrence.
*Counting of 2-hour counter
starts if error occurs on any
compressors.
Error is cleared by turning
power off.
2. Compressor power relay 3 is
faulty.
0B
ERROR
CODE
05-17

Fujitsu R407C Specifications

General

Brand	Fujitsu
Model	R407C
Category	Air Conditioner
Language	English