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Error code

Mitsubishi Electric PURY code 1302

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Meaning

High pressure fault 1 (Outdoor unit): 1) If the pressure of 3.78MPa [548psi] or higher is detected by the pressure sensor during operation (the first detection), the outdoor stops once, turns to antirestart mode for 3 minutes, and restarts after 3 minutes automatically. | crease due to clogging of the heat exchanger The fan is not properly controlled as the outdoor temperature cannot be precisely detected by the

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Possible causes

(1) Indoor unit LEV actuation failure (2) BC controller LEV malfunction Heating only or heating main: Indoor LEV 3, 4 Defrost: LEV3, 4 (3) BC controller SVM1 and 2 malfunction →Cooling only or defrost (4) BC controller SVA and SVC malfunction →Cooling only or cooling main (5) BC controller SVB malfunction →Heating only or heating main Solenoid valve actuation failure (SV4a, SV4b, SV4c, or SV4d) →Cooling only or cooling main (6) Actuation failure in the four-way valve (21S4a, 21S4b, or 21S4c) or the expansion valve (LEV2a, LEV2b, LEV2c, or LEV2d) →CoolCodes ing-only or cooling-main (7) Port address setting error. (8) Refrigerant service valve actuation failure Error (9) Short cycle on the indoor unit side (10) Clogged filter on the indoor unit Using (11) Reduced air flow due to dirty fan on the indoor unit fan (12) Dirty heat exchanger of the indoor unit Troubleshooting (13) Indoor fan (including fan parts) failure or motor failure Items (7) through (12) above reduce the condensing capability of the unit, resulting in high-pressure rise during heating operation. (18) Thermistor failure (TH3, TH7) (19) Pressure sensor failure (20) Failure of the thermistor input circuit and pressure sensor input circuit on the controller board (1) Inner pressure drop due to a leakage. (2) Pressure sensor failure

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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