Why is my electric water heater not heating up?

Boyd Brakus asked a question: Why is my electric water heater not heating up?
Asked By: Boyd Brakus
Date created: Sat, Mar 6, 2021 9:55 AM



Those who are looking for an answer to the question «Why is my electric water heater not heating up?» often ask the following questions:

👉 Electric water heater leaks when heating?

One of the most common causes of water heater leakage is a loose drain valve. It water appears to be leaking from the valve, try tightening it with a wrench until it is snug, but be careful not to over-tighten it.

👉 Electric water heater leaks when heating element?

If you have an electric water heater, the leak may be present at the top or bottom heating element. Each heating element has a seal that over time becomes worn, causing it to leak. While this isn’t very common, it does happen and deserves to be checked. To check for a failed heating element seal, you will need to do the following:

👉 Electric water heater leaks when heating system?

If the water heater is heating the water too much, the excessive pressure may be causing the T & P valve to leak. The solution might be to lower the water temperature or to install a water expansion tank if you don't already have one in your plumbing system.

6 other answers

There may be an issue with the electric water heater itself: When the upper heating element or upper thermostat is faulty, the water in the top of the tank will never reach the temperature setting on the upper thermostat and the water at the top of the water heater will not get hot.

If rust, corrosion, and sediment build-up in the bottom of a water heater tank, the burner or heating elements will not heat the water as efficiently, making it harder to maintain a good supply of sufficiently hot water.

If there's water in the drain tray or floor around your heater, with no apparent leak, it is likely that your temperature and pressure (T&P) relief valve is faulty and leaking water. These valves are designed to open and release high pressure above 150 psi for safety reasons and if the water temperature exceeds 210 F.

A malfunctioning thermostat is most likely the culprit of why your water heater is suddenly hot. A thermostat controls the on and off cycle of water heater elements. In the case of a malfunction, a safety feature is triggered if the thermostat fails to shut off power to the boiler elements during routine cycling.

Thermostat is basically that device or part which helps you change or moderate the temperature of water inside the geyser. If this part fails at off position then the water may not heat up at all. In both these cases, you may need to contact a professional to get the issue resolved or to get the part replaced.

You are likely to face a major hindrance accessing the heater, as most of them are in the machine’s front. A faulty heater will show high resistance or a completely open circuit between the main connections. If everything is fine, the heater will give you a resistance ranging between 20 and 50 Ohms. Protector Device for the Heater Goes Off

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