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Immersion heater has stopped functioning – find out why!

September 7th, 2021

Imagine that you have come back home after an exhausting day at work. You are thrilled to take that hot shower that you have been planning all day. You press the hot shower tap, hoping to get a steady stream of warm water, but you get a blast of cold water. It ruins all your expectations.

You must be wondering why the immersion heater has stopped working and there is no straight answer to this. We, at Plumbing Emergency 24/7, offer around the clock plumbing services so that your relaxation expectations are fulfilled and we have outlined some of the common reasons why your immersion heater is not functioning.

The circuit breaker has tripped

A cylinder that is not operational and does not provide warm water might be out of electrical power. That happens when the circuit in the breaker box overloads and it trips down to prevent overheating.

Problems with the insulation

If your immersion heater is experiencing an insulation breakdown, it usually interrupts the electrical current flow via the heating element. This results in the system becoming overloaded and the wires getting damaged. It can also cause tripping of the main circuit breaker.

Damaged immersion element

Any kind of damage to an immersion element typically happens toward the end of the lifespan of the immersion heater. It might happen because of rust as it changes the component circuit. It might also be due to normal wear and tear because you have been using the immersion heater for a long time.

The thermostat is faulty or damaged

It might be that the immersion heater has stopped working unexpectedly. It might be the water coming out of the heater is piping hot. The chances are that the thermostat is faulty and with some luck, you might be able to reset the regulator. However, if that does not resolve the issue, reach out to us.

Build-up of limescale

Do you live in an area with more hard water? If so, limescale build-up might be in excess and your heater may break faster than expected.

Key takeaways

Immersion heaters are a popular alternative if you do not have a gas supply. They can last for a long time, but issues might arise. When this happens, it is usually because of –

Faulty or burned internal parts like the temperature regulator or a heating element

Limescale build-up or problems that might come with older immersion heaters

Problems with the wiring or insulation

If you need help, you can connect with Plumbing Emergency 24/7. We have years of expertise and experience in fixing immersion heaters at competitive prices. Our services are genuinely available 24/7 and you can count on us whenever there is a plumbing-related problem.


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