Mitsubishi Heavy E56

High

KX / FD — Heat dissipation fins (heat sink) temperature sensor anomaly (Tho-P1, P2) — sensor wire breakage.

Mitsubishi Heavy E56: Heat dissipation fins (heat sink) temperature sensor anomaly (Tho-P1, P2) — sensor wire breakage. This fault noticeably affects operation.

Possible causes

Sensor wire broken or sensor faulty.

Check steps

Check sensor resistance and wiring.

Affected parts

Tho-P1/P2 Fühler

Safety note

Isolate power before testing.

Source: Mitsubishi Heavy Industries FDC-KXZE2 VRF Troubleshooting Manual (KX-T-378), "8. System Troubleshooting Procedure" error code table

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

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