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A017

A017 - High Flue Temp

Rheem · Water Heaters

What does A017 mean?

The temperature of the exhaust gas has exceeded 155°F. The heater is disabled, but the blower will continue to run until the temperature decreases.

Common Causes

  • Overheating exhaust gases
  • Blower issue
  • Venting obstruction

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Allow the blower to run to cool the system.

  2. 2

    Recycle the unit by turning it off and on.

  3. 3

    Contact technical support if the problem persists.

Browse all codes in this manual (70)
Verified technical data. Last updated: April 2026

Related Faults

1111 - Gas shut-off valve is not fully open1212 - Gas service interrupted or LP gas low13Hot and cold water lines reversed
Source: Rheem Water Heaters
Open Manual (Page 43)Search more codes in this manual