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unlisted error code

Unlisted error code displayed on remote control

Rheem · Water Heaters

What does unlisted error code mean?

If the error code displayed on the remote control is not found in the troubleshooting chart, turn off the water heater immediately and contact a service technician.

Common Causes

  • Unrecognized or critical internal fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the water heater.

  2. 2

    Call for service assistance immediately.

  3. 3

    Make note of the unlisted error code.

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 76)Search more codes in this manual