Water heater makes loud banging or popping noises during operation
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
How to Fix / Troubleshooting
Safety first: Turn OFF power and gas before removing covers. Surfaces may be hot; allow cooling.
Steps to check:
- Listen to the noise: Popping or crackling often indicates scale; roaring or rumbling may indicate combustion issues.
- Check maintenance history: If the unit has not been descaled in several years, schedule descaling.
- Inspect burner area: Have a technician inspect the burner for loose parts or debris.
When to call a professional: Descaling and combustion adjustments should be performed by a qualified technician to restore quiet operation.
Repair Difficulty
Required Part
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