Mitsubishi Electric PA

High

PLY-ZM/PLY-M/PEY-M/PCY-M serisi — Forced compressor error (due to water leakage abnormality)

Mitsubishi Electric PA: Forced compressor error (due to water leakage abnormality) This fault noticeably affects operation.

Possible causes

Water leakage detected in the indoor unit, compressor forcibly stopped for safety
Float switch or drain sensor triggered the fault

Check steps

Check condensate drain and float switch operation
Fix the cause of the water leak before restarting the unit

Affected parts

Float switch
Drain pump
Drain sensor

Safety note

Disconnect power supply before working on the drain system; avoid water/electrical contact.

Source: Mitsubishi Electric resmi servis kilavuzu (bagimsiz cift-dogrulandi) — Mitsubishi Electric, "Mr. SLIM - Indoor Unit ", model range PLY-ZM50EA / PLY-M60,80,100,125EA / PEY-M50,60,80,100,125JAL / PCY-M125KAL, rev. 20241024, page 3, Output pattern A table: "PA | Forced compressor error (due to water leakage abnormality)" (Wireless R/C beep/blink count: 5, shared with P5 "Drain pump erro…

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

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