81
30AW
Diagnostic
6
Is the sensor correctly connected?
(See Wiring Diagrams)
Are the resistance characteristics of the
temperature sensor normal?*
Correctly connect the Sensor
Replace defective Sensor
Check Inverter board - replace if defective
*Check resistance table
Fault code 18 – G - Tr Short-circuit protection
Is the power supply (line) voltage correct?
Are the inter-connections and cabling
correct? (See Wiring Diagrams)
Does relay RY01 operate?
Correct the power supply voltage
Correct any inter-connecting or cabling
errors
Does the error code ‘Code 12 (o18??)’
appear when connector 3P is removed
from the compressor?
Has the AC fuse fused?
Replace PC
board
Replace PC board
Is compressor normal?
Check/Replace PC board
defective
Replace defective
compressor - a rare short
circuit may have occurred
Fault code 17 – Inverter Air sensor fault
NO
YES
YES
NO
NO
YES
YES
YES
NO
YES
NO
NO
YES
NO
YES
SM_30AW.indd 81 14-03-2011 14:45:33
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