Error code
Mitsubishi Electric PAA code P9
No approved translation for this record yet; showing the original text.
Meaning
NOTE 3) It takes at least 27 minutes to detect abnormality. 4) It excludes the period of defrosting (Detection restarts when defrosting mode is over) Heating range: 3˚ C (5.4˚ F) [ (TH5-TH1) Abnormality of pipe temperature thermistor / Condenser-Evaporator (TH5) 1. The unit is in three-minute resume protection mode if short/ open of thermistor is detected. Abnormal if the unit does not get back to normal within three minutes. (The unit returns to normal operation, if it has normally reset.) 2. C
Member details
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View details as a memberPossible causes
(1) Defective thermistor characteristics (2) Contact failure of connector (CN44) on the indoor controller board (Insert failure) (3) Breaking of wire or contact failure of thermistor wiring (4) Temperature of thermistor is 90˚ C [194˚ F] or more or -40˚ C [-40˚ F] or less caused by defective refrigerant circuit (5) Defective indoor controller board
Solution
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Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/paa/p9