Panasonic Intermittent Ignition Failure

Water heater emits a clicking sound but fails to ignite; no error code displayed.

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.

Possible Causes

Weak spark from ignition electrode, Incorrect electrode gap, Poor gas‑air mixture at startup, Marginal gas pressure

How to Fix / Troubleshooting

Gas safety: If repeated ignition attempts fail, stop and ventilate the area. Do not keep trying to start the heater.

1. Observe ignition:
- Listen for fan start, then clicking from the igniter.
2. Check gas supply:
- Ensure the gas valve is fully open.
- Verify other gas appliances operate normally.
3. Clean ignition electrode (qualified persons):
- Remove the front cover.
- Locate and clean the ignition electrode tip with fine abrasive pad.
4. If problem persists: Have a technician check electrode gap, gas pressure, and combustion settings.

Repair Difficulty

Hard 4/5

Required Part

Ignition Electrode

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