The water heater does not heat water, but the indicator is on

Damaged electrical wiring or a faulty heating element can lead to improper operation of the boiler. To find out why it is not functioning, you need to carefully examine it.
The heating element does not work for the following reasons: a lot of scale has accumulated on its surface, the thermal protection button does not turn on; the heater may not heat the water due to a faulty safety valve. It is necessary to find out all the reasons why the water heater does not heat water, but the indicator lights up or does not light up.

Common causes of breakdown

Often the cause of malfunction of the heating element may be a non-working electronic module. You should not try to repair it yourself. Unit breakdown may be caused by the activation of emergency fairings. Due to scale deposits on the heating element, the fairings begin to turn on in random order.

You can check the operation of the water heater using an incandescent lamp. It must be connected to the heating element. After connection, the electrical circuit must be connected to a power source. The heating element functions correctly if the lamp is lit. Another way is to use a multimeter.You need to turn on the resistance measurement mode on it and connect it to the heating element. When the circuit is closed, the indicator will show zero. If the chain has a break, the indicator will be infinity.

The water heater does not heat water, but the lamp does not light up

There are situations in which the heater does not heat the water to the required temperature and the lamp does not light.
The causes of failure may be:

• non-working heating element;
• a lot of deposits in the form of a layer of scale have appeared on the heating element;
• the safety valve does not work;
• The electronic board does not work.

IMPORTANT! ThuTo solve these problems you need to drain the water and disassemble the boiler. Check it using a multimeter, voltage indicator, tester to see if it is working correctly. If indicators indicate incorrect operation of its elements, replace them or eliminate the causes of their failure.

The boiler does not heat, but the lamp is on

The causes of this problem are various breakdowns.

The handle is in the “minimum” mode, for this reason the tank does not warm up to the required temperature. This problem can be solved by turning the knob clockwise.
The thermostat turned on. Turning on the heat protection button will help you get out of this situation. It is located in different places on different models.
The valve is not closed. You need to place your palm on the riser. If it feels warm to the touch, but cold water comes out of the tap, it means the valve is not working. It needs to be blocked or purchased and replaced with a new one.
It takes a long time to heat up. You shouldn’t drain the water right away; the right thing to do is wait until it warms up.

Options for solving the problem of heating element malfunction

Cleaning with one liter of water, 50 grams of citric acid. The device is immersed in a solution prepared from these substances for two days.After this, it is pulled out and the scale is cleaned off. Replacing the heating element on different boiler models is the same.
To produce it you need:

• Close the tap;
• clean the heater;
• for safety reasons, you need to turn off the power to the boiler;
• remove the protective cover;
• use a special screwdriver to find out if there is voltage;
• take a photo of the connection diagram;
• remove the heating element from the mounts (if necessary, place a rag);
• wait until the mounting area is completely dry (the contacts should not have moisture);
• look at the anode, find out if it is working;
• check the rubber gasket for wear;
• after the heating element has been replaced, install all the parts back.

Having completed all these steps, you need to make sure that there are no leaks. The air in the boiler must be released, and then the unit must be plugged into an outlet.

Why does the water heater not heat the water to maximum?

One of the common reasons why a boiler does not function correctly is a malfunctioning heating element. This problem is typical for ancient models. Typically, the service life of a heating element is four years. Over time, deposits form on it. They interfere with the normal operation of the device.

If you do not take any measures to replace or clean it, this may lead to failure of the heating element. The heater may not work properly due to a broken thermostat and therefore not heat hot water.