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Error code

Mitsubishi Electric klima code 1505

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

Meaning

Suction pressure abnormality (Variable capacity unit): • R22 refrigerant models: 1 If it has been determined by the high pressure pressure, outlet temperature and low pressure saturation temperature that the suction pressure kg/cm2 has approached 0 G (0 MPa) during compressor operation, back-up control is performed by the gas bypass. 2 1 If the condition as in continues for 3 minutes, the outdoor unit is stopped and it enters the re-start prohibit mode for 3 minutes after which it is started. 3 If the same condition as in 1 continues within 30 minut

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Possible causes

Cooling: Gas side ball valve Heating: Liquid side ball valve • Temporary vacuum condition due to the uneven distribution of refrigerant (insufficient refrigerant in low pressure line) immediately after charging. • Miss matching of refrigerant piping, transmission line. ---- R22 only

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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