(ECOi-Geräte)
Alarm Code | L18 | |||
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Alarm meaning | 4-way valve operation failure | |||
Alarm conditions | During heating operation (Comp. ON), the highest detected temperature at an outdoor unit heat exchanger (EXG 1, EXG 2, EXL 1, or EXL 2) was 20°C or more above the outdoor air temperature (Air Temp.) continuously for 5 minutes or longer, or the detected suction temperature (SCT) was 20°C or more above the outdoor air temperature continuously for 5 minutes or longer. | |||
Probable cause |
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Check |
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Correction | If the connector is normal, correct or replace the problem locations. | |||
Example | – | |||
Notes | – |