E1
Whirlpool
Ignition Lockout
E1 error on gas power vent or direct vent Whirlpool water heater, no ignition or unit shuts down
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
No gas supply, dirty flame sensor, faulty igniter, blocked burner, defective gas control valve
How to Fix / Troubleshooting
Safety first: Turn OFF gas and power. Wait several minutes to clear any unburned gas.
Checks:
- Confirm gas shutoff valve is fully open and other gas appliances work.
- Remove burner assembly; clean burner ports and flame sensor with a soft brush and fine abrasive pad.
- Inspect igniter for cracks; test resistance if specs are available.
- Reinstall burner, ensuring proper alignment and gasket seal.
Corrective actions:
- Replace a failed igniter or flame sensor with Whirlpool OEM parts.
- If ignition still fails and gas supply is confirmed, replace the gas control valve/thermostat assembly.
Warning: If you smell gas continuously or see sooting, stop and call a qualified technician.
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Repair Difficulty
Hard
4/5
Required Part
Igniter / Flame Sensor / Gas Control Valve
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