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Error code

Mitsubishi Electric PUZ code U4

No approved translation for this record yet; showing the original text.

Meaning

(TH3:5105) (TH6:5107) (TH7:5106) (TH8:5110): minutes after and during defrosting.) TH33: Thermistor <Comp. (PAC-SK52ST) (Refer to "10-10. FUNCTION OF SWITCHES, CO

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Possible causes

(1) Disconnection or contact failure of connectors ( ) Outdoor controller circuit board: TH3,TH6/TH7 Outdoor power circuit board: CN6 (2) Defective thermistor (3) Defective outdoor controller circuit board detection Short detection or below 194°F [ 90:] or above or below 194°F [ 90:] or above or below 194°F [ 90:] or above or below 216°F [102:] or above

Solution

Solution steps are not shared for faults that may be dangerous.

No do-it-yourself solution is given for this fault. For your safety, call an authorised service.

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