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Troubleshooting
SiENBE04-925_A
96
Service Diagnosis
4.16 Compressor System Sensor Abnormality
4.16.1 20/25 Class
Remote Control
Display
H0
Method of
Malfunction
Detection
The system checks the DC current before the compressor starts.
Malfunction
Decision
Conditions
The DC current before compressor start-up is out of the range 0.5 ~ 4.5 V (sensor output
converted to voltage value)
The DC voltage before compressor start-up is below 50 V.
Supposed
Causes
Broken or disconnection of harness
Defective outdoor unit PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
(R11712)
YES
Turn off the power and turn it on
again.
YES
NO
Replace the harness.
No problem.
Keep on running.
Replace the outdoor unit
PCB.
Is the harness
broken?
Restart operation
and error displayed again?
Check the relay harness for the
compressor.
SIENBE04-925_A_FRONT.pdf 111
24/02/2011 13:53:57
Summary of Contents for Inverter FTXL20G2V1B
Page 8: ...SiENBE04 925_A vi Table of Contents...
Page 14: ...Introduction SiENBE04 925_A xii...
Page 15: ...SiENBE04 925_A List of Functions 1 Part 1 List of Functions 1 Functions 2...
Page 17: ...SiENBE04 925_A Specifications 3 Part 2 Specifications 1 Specifications 4...
Page 20: ...Specifications SiENBE04 925_A 6 Specifications...