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Toshiba air conditioner error codes

Indicator lamps and blink codes

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04Inter. Cable 08Reverse change temp 09No change in temp. of indoor unit 0BIndoor water level 0CTA Sensor short circuit 0DTC Sensor fault 11Fan motor fault 12PCB Fault 14Driving element short circuit 16Position detection circuit error 17Current detection circuit error 18TE Sensor open circuit 19TL or TD Sensor open circuit 1AFan system error 1BOutdoor air temperature sensor (TO) error 1CCompressor case thermostat error 1DCompressor 1EHigh Discharge Temperature 1FCompressor breakdown 20PMV leakage error (unit B)21High Pressure Trip 99No communication Indoor to Rem. Con

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Air conditioner repair, stage by stage: from the…How to read an air conditioner error code Communication error between indoor and outdoor…Checking an air conditioner temperature sensor…Indoor or outdoor fan motor error: causes and…Pressure, low refrigerant and high discharge…

The meanings come from the manufacturers' service manuals; brand names belong to their owners. Always check the manual of your exact model.