Troubleshooting
SiBE04-101
108
Service Diagnosis
4.19
Operation Halt Due to Position Detection Sensor
Remote Controller
Display
H6
Outdoor unit LED
Display
A
5
1
4
2
4
3
3
4
3
Method of
Malfunction
Detection
The position detection unit of electrical parts is used to confirm the compressor rotation information for the
detection of compressor startup failures.
Malfunction
Decision
Conditions
When the compressor does not start rotating within about 15 seconds after operation startup.
Number of times: 16
Cancellation condition: 8 continuous minutes of operation (normal)
Supposed Causes
Erroneous detection due to disconnected compressor relay harness
Startup failure due to faulty compressor
Startup failure due to faulty outdoor unit PCB
Startup failure due to closed stop valve
Erroneous detection due to faulty outdoor unit PCB
Abnormal input voltage
Troubleshooting
Check No.14
Refer to P.122
Check No.13
Refer to P.121
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
Connect correctly.
Replace the electrical parts.
Connect correctly.
Replace the outdoor unit PCB.
Check the harness.
Replace the outdoor unit PCB.
Replace the compressor.
Check No.14
Capacitor voltage check
Check No.14
Power transistor check
Check No.13
Power transistor output check
Is it 350 ± 30 VDC?
Is the
harness of the
electrical parts or compressor
connected correctly?
Is it normal?
Is the output of
each of U, V and W phases
balanced?
Is the harness of
the electrical parts connected
correctly?
(R1064)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
SiBE04-101.book Page 108 Monday, October 15, 2001 3:08 PM
