Error code
Mitsubishi Electric PAC code U7
No approved translation for this record yet; showing the original text.
Meaning
(1) Too low superheat due to low discharge/compressor temperature Abnormal if discharge superheat is continuously detected –15: [-27°F] or less even though linear expansion valve has minimum open pulse after compressor starts operating for 10 minutes. (2) Erroneous connection of refrigerant pipes or the connecting wires Consider the stopping indoor unit abnormal if condenser/evaporator temperature thermistor (TH5 or RT12) detects –5: [23°F] or below continuously for 5 minutes during a compressor
Member details
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View details as a memberPossible causes
(1) Disconnection or loose connection of discharge/compressor temperature thermistor. (TH4) (2) Defective holder of discharge/ compressor temperature thermistor (1) Failure in piping/wiring (2) Pipe (liquid) is clogged or crushed.
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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Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/pac/u7