What causes a rumbling noise that comes from the water heater?
Rumbling sounds are an indication that sediment has built up on the bottom of the water heater. What you are hearing is water that is trapped in the sediment and is boiling. The water heater is not operating efficiently. Sediments will not allow the heat to transfer to the water in the tank, which sends the heat up the flue. You can try draining a few gallons of water off of the bottom of the water heater tank. This is done by attaching a drain hose to the valve at the bottom of the tank. Allow it to drain for about five minutes.
Related Questions
- Condensation from the air conditioner clogs up during the summer months, then causes a back-up and overflow when the unit first comes on. How can I stop this from happening?
- My gas water heater makes annoying rumbling noises when the heater is in operation. What causes this?
- What causes lifter noise in my V8 Packard at higher speeds - also had it at low speeds?
