Water Heater Repair in Karns, TN

Hard water is very tough on tankless heaters because the intense heat causes calcium to rapidly build up inside the narrow heat exchanger. You must have your tankless unit descaled annually to prevent irreversible damage.

This occurs when you turn off the hot water briefly and turn it back on. You get the hot water already in the pipe, followed by a brief burst of unheated water, then hot water again. Modern units or recirculation pumps can fix this.

If the shower suddenly gets cold when someone flushes a toilet, it's often a plumbing pressure issue. But if the hot water simply runs out quickly or surges, your water heater's dip tube or mixing valve may be malfunctioning.

Hissing usually happens when condensation from the tank drips down onto the hot burner beneath it. It can also happen if there is a tiny leak spraying onto a hot surface. Have a professional inspect it to be safe.

That rumbling or popping sound is caused by a thick layer of mineral sediment at the bottom of your tank. Water gets trapped under the sediment and boils, creating steam bubbles. A professional flush by Water Heater Repair Tech can clear this out and quiet the tank down.