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54

54 — IPM-FO hardware over-current (edge)

Rheem · Air Handlers

What does 54 mean?

This error relates to hardware over-current detection in the IPM-FO component. It may be caused by fan motor overload, control board failure, or fan motor insulation issues.

Common Causes

  • Fan motor overload or over-current
  • Control board failure
  • Fan motor insulation failure

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the fan motor.

  2. 2

    Replace the Main PCB.

Browse all codes in this manual (51)
Verified technical data. Last updated: April 2026

Related Faults

1Fault code 1 — Inverter DC voltage overload fault10Fault code 10 — PFC fault (level)11Fault code 11 — PFC power detection of failure
Source: Rheem Air Handlers
Open Manual (Page 187)Search more codes in this manual