Error Codes [5102,5103,5104,5105,5106,5107,5115] - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-2

Error Codes [5102,5103,5104,5105,5106,5107,5115]

1. Error code definition
5102
HIC bypass circuit outlet temperature sensor (TH2) fault (Outdoor unit)
5103
Heat exchanger outlet temperature sensor (TH3) fault (Outdoor unit)
5104
Discharge temperature sensor (TH4) fault (Outdoor unit)
5105
Accumulator inlet temperature sensor (TH5) fault (Outdoor unit)
5106
HIC circuit outlet temperature sensor (TH6) fault (Outdoor unit)
5107
Outside temperature sensor (TH7) fault (Outdoor unit)
5115
Shell bottom temperature sensor (TH15) fault (outdoor unit)
2. Error definition and error detection method
When a short (high temperature intake) or an open (low temperature intake) of the thermistor is detected (the first detection),
the outdoor unit stops, turns to anti-restart mode for 20 seconds, and restarts when the detected temperature of the thermistor.
When a short or an open is detected again (the second detection) after the first restart of the outdoor unit, the outdoor unit
stops, turns to anti-restart mode for 20 seconds, and restarts in 20 seconds when the detected temperature is within the nor-
mal range.
When a short or an open is detected again (the third detection) after the previous restart of the outdoor unit, the outdoor unit
makes an error stop.
When a short or an open of the thermistor is detected just before the restart of the outdoor unit, the outdoor unit makes an
error stop, and the error code "5102", "5103", "5104", "5105", "5106", "5107" or "5115" will appear.
During 3-minute antirestart mode, preliminary errors will be displayed on the LED display.
A short or an open described above is not detected for 10 minutes after the compressor start.
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- chapter 7 BS_07_C