Error code

Mitsubishi Electric PQHY code 5112

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Meaning

Inverter cooling heat exchanger (THINV): minutes when the detected temperature is within the normal range. 3.When a short or an open is detected again (the third detection) after the previous restart of the heat source unit, the heat source unit makes an error stop. 4.When a short or an open of the thermistor is detected just before the restart of the heat source unit, the heat source unit makes an error stop, and the error code "5101", "5105" , "5106" , "5107" , "5108" , "5109" or "5112" will appear. 5.During 3-minute antirestart mode | Inverter cooling heat exchanger (THINV): and restarts when the detected temperature of the thermistor 2.When a short or an open is detected again (the second detection) after the first restart of the heat source unit, the heat source unit stops, turns to anti-restart mode for 3 minutes, and restarts in 3 minutes when the detected temperature is within the normal range. 3.When a short or an open is detected again (the third detection) after the previous restart of the heat source unit, the heat source unit makes an error stop. 4.When a | Bypass outlet (TH12): an open (low temperature inlet) of the thermistor is detected

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Possible causes

Short detection TH11 240 C [464 F ] and above TH5 110 C [230 F ] and above 110 C [230 F ] and above TH6 TH7 70 C [158 F ] and above TH8 70 C [158 F ] and above 110 C [230 F ] and above TH9 THINV 110 C [230 F ] and above (4) A pin on the male connector is missing or contact failure (5) Disconnected wire (6) Thermistor input circuit failure on the main board Short is detection TH11 240 C [464 F] and TH6 110 C [230 F] and TH9 110 C [230 F] and THINV 110 C [230 F] and (3) Torn wire coating (4) A pin on the male connector is missing or contact

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