Error code

Mitsubishi Electric PUHY code 1111

For your safety

This fault is rated critical. No remote repair or do-it-yourself instructions are given; do not use the appliance or try to open or repair it.

Hazard area: refrigerant gas circuit

If there is a risk to life, first move to a safe place, then call 112. Do not follow remote repair instructions.

Call 112

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No approved translation for this record yet; showing the original text.

Meaning

Low pressure saturation temperature sensor abnormality (TH2) trouble temperature saturation pressure Low: 1. When saturation temperature sensor (TH2) detects -40˚C or less (the first time) during operations, outdoor unit stops once, mode is changed to restart mode after 3 minutes, then the outdoor unit restarts. When a temperature of -40°C 2. or less is detected again (the second time) with in 30 minutes after the first stop of outdoor unit, mode is changed to restart mode after 3 minutes, then the outdoor unit restarts. 3. When -40˚C or less temp. is detected again (the third time) within 30 minute

Member details

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Possible causes

(1) Gas leak, Gas shortage. (2) Insufficient load operations. (3) Poor operations of indoor LEV. (4) Poor operations of OC controller LEV: Cooling : LEV1 . (5) Poor operations of ball valve. (7) Clogging of indoor unit filter. (8) Fall in air volume caused by dust on indoor unit fan. (9) Dust on indoor unit heat exchanger. 10)Indoor unit block, Motor trouble. 5)~9) : Fall in low pressure caused by evaporating capacity in cooling-only cooling-principal operation. 12)Dust on outdoor heat exchanger. 13)Indoor unit fan block, motor trouble, and poor operations of fan controller. 14)~16) : Fall in low press. caused by lowered evaporating capa-city in heating-only heating-principal operation. 14)Poor operations of solenoid valve SV1. 15)Thermistor trouble (TH2~TH6). 16)Pressure sensor abnormality. 17)Control circuit board thermistor abnormality and pressure sensor input circuit abnormality. 18)Poor mounting of thermistor (TH2~TH6). - 76

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.