Mitsubishi Electric PL

High

PLY-ZM/PLY-M/PEY-M/PCY-M ve PUY-P/PUY-M serisi — Refrigerant circuit abnormal (check code not otherwise defined, triggered by refrigerant-circuit problem)

Mitsubishi Electric PL: Refrigerant circuit abnormal (check code not otherwise defined, triggered by refrigerant-circuit problem) This fault noticeably affects operation.

Possible causes

Refrigerant pipe disconnected or leaking
Refrigerant circuit blocked by foreign matter

Check steps

Check refrigerant pipes for disconnection or leakage
After recovery, vacuum-dry the refrigerant circuit and check operation

Affected parts

Refrigerant piping
Service valves

Safety note

Perform refrigerant work only with recovery equipment and PPE; release pressure before opening the circuit.

Source: Mitsubishi Electric resmi servis kilavuzu (bagimsiz cift-dogrulandi) — Mitsubishi Electric Mr. SLIM Indoor Unit — Malfunction-diagnosis method at maintenance service, PLY-ZM50EA / PLY-M60,80,100,125EA / PEY-M50,60,80,100,125JAL / PCY-M125KAL, rev. 20241024, page 3 (table, [Output pattern A]): "PL | Refrigerant circuit abnormal" (14-time blink pattern on wireless R/C). Mr. SLIM Outdoor U…

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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