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no power after 90 seconds

No operation after power connection

Rheem · Water Heaters

What does no power after 90 seconds mean?

The water heater did not initiate operation within 90 seconds after power was connected for the first time. Ensure power is correctly connected.

Common Causes

  • Power connection issue
  • Internal fault
  • Incorrect wiring

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the water heater is properly connected to a 120 VAC/60 Hz power supply.

  2. 2

    Verify that the circuit breaker is on and the outlet is functional.

  3. 3

    If the issue persists, contact a qualified service technician.

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 44)Search more codes in this manual