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Auto Shut-Off Valve Failed to Reopen

Automatic Water Shut-Off Valve Failed to Reopen — Water Heater Disabled

Rheem · Air Conditioning

What does Auto Shut-Off Valve Failed to Reopen mean?

The water heater has been disabled because the automatic water shut-off valve failed to reopen after its 30-day self-check. This prevents water flow and heating.

Common Causes

  • Automatic water shut-off valve malfunction
  • Obstruction in the water shut-off valve
  • Control system error preventing valve operation

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the EcoNet app for specific alerts related to the shut-off valve.

  2. 2

    Verify that a Shut-Off Valve (SOV) is correctly indicated as installed in the settings menu if applicable.

  3. 3

    Manually attempt to operate the shut-off valve if accessible and safe to do so.

  4. 4

    Restart the water heater by unplugging it for 1 minute and plugging it back in.

  5. 5

    If the valve does not reopen, contact customer support for assistance.

Browse all codes in this manual (48)
Verified technical data. Last updated: April 2026

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Source: Rheem Air Conditioning
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