The most common problems one encounters with water heating devices are rotten egg odor, rust colored water, no hot water, a popping noise, or a leak around the base of a heater. The first impulse you might have is to call a repair person. But before you do that, read a few tips about tankless water heater services via newlightservicenc.com/plumbing-services/tankless-water-heaters that may save you a few bucks.
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Before venturing to repair the heater, make sure to follow a few safety precautions like turning off power to an electric water heating device. This is done by turning off the circuit breaker or fuse that powers the heating device.
If you use a gas-fired tank less water heater, turn the gas pilot control valve to “pilot” setting. And most importantly shut off the power supply of the water heater.
If you have a gas type tank heater and it makes a popping noise, this could be sediments in the tank, or low water pressure which results in spot boiling. This may not actually be a huge problem.
But if there is not enough hot water, check the thermostat, it might have been set to low, you only have to increase temperature. With electric water heating devices, odors might be caused by bacteria so you might need to change the anode.