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Do not use power strips or multiple outlet adapters

Warning: Do not use power strips or multiple outlet adapters

Rheem · Tankless Water Heaters

What does Do not use power strips or multiple outlet adapters mean?

Connect the water heater directly to a grounded electrical outlet. Do not use power strips or adapters that allow multiple devices to be plugged into a single outlet, as this can lead to unsafe conditions or operational issues.

Common Causes

  • Connecting the unit via a power strip or adapter

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Plug the water heater's power cord directly into the wall outlet.

  2. 2

    Remove any power strips or multiple outlet adapters from the circuit.

  3. 3

    Ensure the outlet is properly grounded.

Browse all codes in this manual (24)
Verified technical data. Last updated: April 2026

Related Faults

88Error 88 — Maintenance required before clearing codeAlarm/Error IndicatorSystem Alert — An issue has been detectedDANGER: Shock HazardDANGER: Shock Hazard — Electrical power is present
Source: Rheem Tankless Water Heaters
Open Manual (Page 47)Search more codes in this manual