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SiENBE12-713
Troubleshooting
Service Diagnosis
269
5.24 Output Over Current Detection
Remote Control
Display
L5
Outdoor Unit LED
Display
A
5
1
1
2
1
3
4
4
1
Method of
Malfunction
Detection
An output over-current is detected by checking the current that flows in the inverter DC section.
Malfunction
Decision
Conditions
"
A position signal error occurs while the compressor is running.
"
A speed error occurs while the compressor is running.
"
An output over-current input is fed from the output over-current detection circuit to the
microcomputer.
"
The system will be shut down if the error occurs 16 times.
"
Clearing condition: Continuous run for about 5 minutes (normal)
Supposed
Causes
"
Over-current due to defective power transistor
"
Over-current due to wrong internal wiring
"
Over-current due to abnormal supply voltage
"
Over-current due to defective PCB
"
Error detection due to defective PCB
"
Over-current due to closed stop valve
"
Over-current due to compressor failure
"
Over-current due to poor installation condition
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...