Toshiba HFC R407C User Manual

44
Check code Status of air conditioner Operation cause
[1d] Operation stops 1. Outdoor unit power source error.
Compressor error alarm 2. Inverter compressor circuit system error.
Refer to outdoor unit 3. Inverter compressor error.
4. Inverter compressor refrigerant stagnation.
5. Defective IPDU PC board.
Troubleshooting
Diagnostic procedure for check code
Is the power source voltage of the
outdoor unit normal?
Does voltage reduction occur
when the fixed-speed compressor
has been activated?
Is the connection of wiring on
the IPDU PC board normal?
Is there an abnormal overload?
Is the inverter compressor normal?
Is there refrigerant stagnation
in the compressor case?
Check IPDU PC board.
Confirm the power source supply.
Modify connector wiring.
Modify cause of overload.
Compressor error
Modify refrigerant stagnation in
the compressor case, and start
the operation.
Is the inverter winding
output normal?
Check IPDU PC board.
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Toshiba HFC R407C Specifications

General

Brand	Toshiba
Model	HFC R407C
Category	Air Conditioner
Language	English