Error code

Mitsubishi Electric PAC code 2520

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

Forced compressor stop (Overlap malfunction of drain pump in indoor unit and linear expansion valve in branch box.) When condition which the outdoor unit is stopped forcibly consists, or the drain sensor detects continuously to go under water 5 times, and also detects ''[liquid pipe temperature-suction temperature] –10°C [–18°F]'' for 30 minutes continuously, the indoor unit stops abnormally (however, fan operates by normal control) that indoor unit and excluding [Fan mode or OFF] in same refr

Member details

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Possible causes

(1) Drain pump trouble (2) Drain defective · Drain pump clogging · Drain pipe clogging (3) Open circuit of drain sensor side heater (4) Contact failure of drain sensor connector (5) Dew condensation on drain sensor · Drain water descends along lead wire. (1) If ture Inspect perature Check (2) Open Clean on (3) If perature increases. clogged sure. clogged sure. 12Normal (Fig. 9-1) of the outdoor unit can be reduced available timer or the contact board of the outdoor unit. temperature and conditions, input adapter (PAC-SC36NA). Remote control Relay circuit External input adapter Outdoor unit control Replay power supply CNDM Fig. 9-1 (Fig. 9-2) a range from 0 to 100 % by performing commercially available input contact parts). into the circuit as shown the outdoor unit, the following Remote control Relay circuit External input Outdoor unit Replay power Fig. 9-2 function (CN51) Distant control board Relay circuit External output adapter (PAC-SA88HA-E) Outdoor unit control board L1 : Error displa

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.