Fault Codes / Mitsubishi Heavy / E75

KX / FD — Communication error (defective communication) — SL1N-E module.

Possible causes

• SL1N-E communication module faulty or wiring defective.

Check steps

• Check wiring to the SL1N-E module; replace the module if needed.

Affected parts

• SL1N-E Modul

Safety note

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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