How to troubleshoot a water heater


 If you own a home, you are likely to face a water heater failure or malfunction. It may be a simple problem with lukewarm water in the shower or a more serious problem such as a leak from the water heater. In either case, being prepared and knowing how to fix the problem can save you from an expensive repair bill and/or further water damage to your home. Let's look at the steps needed to identify a water heater problem and offer practical tips that can help you identify and repair minor issues yourself.

Water heater safety

Before inspecting, troubleshooting or servicing a water heater, you must disconnect the power from the main switch. As a further precaution, you should use a voltage meter and test all wiring connections to the water heater to verify that the power to the unit is off.

If the water heater is not producing hot water, it is possible that the circuit breaker has tripped, the high temperature switch on the water heater has tripped, or one or more heating elements are defective.

Check that the switch is in the on position. If it has tripped, reset the circuit breaker to restore power to the unit.

Reset the high temperature switch on the water heater. The switch is located behind the heating element access panels on the side of the unit. Ensure that the power to the water heater is turned off before performing this operation.

Check and replace any defective heating elements.

Water leaks

In addition to safety issues, a leaking water heater can cause extensive damage to your home. The three most common causes of a leaking water heater are:

Loose plumbing connections. The plumbing in the house connects directly to the water heater. A hot water line allows heated water to leave the tank and reach the ‘tap’ area of the house that requires it. Check these plumbing connections for leaks and make any necessary repairs.

Loose heating elements. The heating elements are inserted in the tank side of the water heater. Both are equipped with a rubber washer to prevent leakage. Over time, the washers may deteriorate, loosening the element and/or allowing a leak to form. Inspect the rubber seals and replace them if necessary. A water heater element spanner, available at most hardware shops, is required to tighten and/or remove the heating elements.

Faulty water heater tank. Water heater tanks are made of steel. Over time, the tank is subject to corrosion. When the tank rusts, it eventually develops a leak, which increases over time. If the water heater tank has developed a leak, it is unfortunately time to replace the entire unit.

Call the Emergency Plumber in Guildford. We are your right contact partner.

Location: Guildford, UK

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