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Troubleshooting
SiENBE12-713
260
Service Diagnosis
5.19 Position Sensor Abnormality
Remote Control
Display
H6
Outdoor Unit LED
Display
A
5
1
4
2
4
3
1
4
1
Method of
Malfunction
Detection
A compressor startup failure is detected by checking the compressor running condition through
the position detection circuit.
Malfunction
Decision
Conditions
"
The compressor fails to start in about 15 seconds after the compressor run command signal
is sent.
"
Clearing condition: Continuous run for about 5 minutes (normal)
"
The system will be shut down if the error occurs 8 times.
Supposed
Causes
"
Compressor relay cable disconnected
"
Compressor itself defective
"
Outdoor unit PCB defective
"
Stop valve closed
"
Input voltage out of specification
Troubleshooting
Check No.13
Refer to P.283
Replace the outdoor unit
PCB, outdoor unit fan.
Replace the outdoor unit
PCB.
Reconnect as specified.
∗
Inverter checker
Part No.: 1225477
Correct the power supply or
replace the outdoor unit
PCB.
Replace the compressor.
(R5145)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Normal
NO
NO
NO
YES
YES
NO
YES
Any LED off?
DC320±30V?
Electricals
or compressor harnesses
connected as
specified?
Check the electrolytic capacitor
voltage.
Check with the inverter checker (
∗
).
Turn off the power. Disconnect the
harnesses U, V and W.
C
heck No.
13
Check for short-circuit.
Summary of Contents for FTKS20D3VMW
Page 11: ...Introduction SiENBE12 713 x...
Page 47: ...Specifications SiENBE12 713 36 Specifications...
Page 113: ...Control Specification SiENBE12 713 102 Function and Control...
Page 235: ...Instruction SiENBE12 713 224 System Configuration...
Page 297: ...Check SiENBE12 713 286 Service Diagnosis...
Page 316: ...SiENBE12 713 Outdoor Unit Removal Procedure 305 Step Procedure Points...