Error code
Mitsubishi Electric PUY code U2
No approved translation for this record yet; showing the original text.
Meaning
Abnormal high discharging temperature (1) Abnormal if discharge temperature thermistor (TH4) exceeds 125: [257˚F] or 110: [230˚F] continuously for 5 minutes. Abnormal if condenser/evaporator temperature thermistor (TH5) exceeds 40: [104˚F] during defrosting and discharge temperature thermistor (TH4) exceeds 110: [230˚F]. (2) [°F]Abnormal if discharge superheat (Cooling: TH4 – TH5 / Heating: TH4 – TH6) increases. All the conditions in A or B are detected simultaneously for 10 minutes continuously
Member details
Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.
View details as a memberPossible causes
(1) Overheated compressor operation caused by shortage of refrigerant (2) Defective operation of stop valve (3) Defective thermistor (4) Defective outdoor controller board (5) Defective action of linear expansion valve
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.
Remote technician support
Get help from a technician over a video call.
Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/puy/u2