Is Your Water Heater Thermostat Faulty?

water heater thermostat

The thermostat on your water heater is responsible for ensuring that water is heated to the desired temperature and maintained at that level. When this component malfunctions, it could lead to a variety of issues that can even be dangerous in some cases. A.M. Plumbing & Rooter discusses how to identify if the thermostat is faulty, signaling the need for expert water heater repair in San Marcos, CA.

Insufficient Hot Water

Is your water heater failing to produce an adequate amount of hot water? If you find that your showers are consistently cooler or that the hot water runs out much quicker than usual, it’s best to let professional water heater services take a look at your appliance. Other factors that can cause this issue include a malfunctioning heating element or a buildup of sediment in the tank. However, if these have been ruled out, the problem likely lies with the thermostat and it will need to be replaced.


On the opposite end of the spectrum, a malfunctioning thermostat can also result in excessively hot water. This is because it cannot accurately regulate the temperature, causing the water to continually heat up. Scalding hot water can cause burns and other injuries, so it’s important to get the thermostat checked as soon as possible. A professional plumber can determine the exact cause and make necessary repairs to ensure your hot water heater functions safely.

No Hot Water at All

This doesn’t always mean that a new water heater installation is in order. If you have confirmed that a tripped circuit or a blown fuse is not the cause of your lack of hot water, it’s time to give the thermostat some attention. Without proper functioning, it will not signal the heating element to turn on and heat the water. A simple replacement of the thermostat can solve this issue and get your hot water back up and running.

Whether you own a traditional tank-style model or a tankless water heater in your San Marcos home, leave all issues and concerns to our trained and experienced technicians at A.M. Plumbing & Rooter. Contact us today to request a service visit.

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