Super Multi System - Toshiba
Super Multi System - Toshiba
Super Multi System - Toshiba
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Check code Status of air conditioner Operation cause<br />
[1d] Operation stops 1. Outdoor unit power source error.<br />
Compressor error alarm 2. Inverter compressor circuit system error.<br />
Refer to outdoor unit 3. Inverter compressor error.<br />
4. Inverter compressor refrigerant stagnation.<br />
5. Defective IPDU PC board.<br />
44<br />
Is the power source voltage of the<br />
outdoor unit normal?<br />
�<br />
Does voltage reduction occur<br />
when the fixed-speed compressor<br />
has been activated?<br />
�<br />
Is the connection of wiring on<br />
the IPDU PC board normal?<br />
�<br />
Is there an abnormal overload?<br />
�<br />
Is the inverter compressor normal?<br />
�<br />
Is there refrigerant stagnation<br />
in the compressor case?<br />
�<br />
Yes<br />
No<br />
Yes<br />
No<br />
Yes<br />
No<br />
Check IPDU PC board.<br />
Troubleshooting<br />
Diagnostic procedure for check code<br />
No<br />
Yes<br />
No<br />
Yes<br />
No<br />
Yes<br />
Yes<br />
Is the inverter winding<br />
� �<br />
output normal?<br />
�<br />
No<br />
�<br />
Check IPDU PC board.<br />
�<br />
�<br />
�<br />
�<br />
Confirm the power source supply.<br />
Modify connector wiring.<br />
Modify cause of overload.<br />
Compressor error<br />
Modify refrigerant stagnation in<br />
the compressor case, and start<br />
the operation.
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