Installing a boiler allows you to not depend on utilities: the equipment provides the user with hot water around the clock. Thermex brand is especially popular due to its ease of installation and affordable cost. But even the Termex water heater is prone to malfunctions. From our article you will find out the causes of breakdowns, what to do when they occur.
Typical malfunctions of the Termex heater
Thermex wide range allows you to choose a 100 liter boiler for a large family, 10-15 liters for use in a small kitchen, etc. The device is a metal heating tank, inside of which a heater is placed. The heater is controlled by a relay as well as a thermostat. The magnesium anode helps to “soften” tap water.
It is worth noting that modern water heaters are equipped with a control unit, which has a self-diagnosis function. The system detects the failed node and displays the error code. Having deciphered the meaning, you can understand where to look for a breakdown and how to fix it yourself.
Error table for water heaters "Termeks"
Error codes | What does it mean | How to fix it yourself |
E1 (Vacuum) | Inadequate filling of the tank with water. Premature inclusion. | This can lead to the combustion of the heater. To correct the situation, turn off the appliance and wait for normal filling. After that, reconnect. |
E2 (Sensor) | There are problems with the temperature sensor. | Try disconnecting the boiler from the network by rebooting. If after this the code is highlighted again, then ring the sensor with a multimeter, and replace if there is a malfunction. |
E3 (Over Heat) | This error indicates that the water has heated to a critical temperature (95 degrees). | The thermostat probably broke. Replace it. |
The video will help you deal with the error E1:
In the electric heater, other malfunctions occur:
- The appliance does not heat water or takes too long.
- Noise is heard during operation.
- It starts only for a short time.
- Does not work, does not turn on.
- The tank is dripping.
- Bad smell and color of water.
If you notice one of the signs, then proceed to check and repair.
How to repair Thermex with your own hands
Consider how to deal with problems on your own.
Replacing a heating element
If the case is vertical, then the heater is located below and you do not have to think about how to remove the cover. In the event of a malfunction, the machine on the shield can knock out, and the case - shock. If you notice too long heating, the element has grown over scale - as a result, heat transfer decreases.
Perhaps the part has worn out due to constant operation or burned out during a power surge. Read about replacing the heater in the water heater in a separate article. In it you will find general ways to diagnose and test for performance. We describe the sequence of actions specifically for the brand "Termex":
- Turn off the water supply and drain the tank. To do this, loosen the nut on the hot water pipe.
- Disconnect all hoses, remove the device from the wall.
- Turn the housing over to gain access to the bottom.
- Many models are equipped with two heating devices. To avoid confusion when connecting, photograph the wiring.
- To gain access to the heater, you need to disassemble the fasteners.
- Remove the screws and nuts that hold the part flange.
- Pull it out of the tank.
With a strong scale formation, the heater may not exit the socket. Then gently clean it with a thin screwdriver.
Before changing the heater, select a replacement according to the serial number of the model. If your device has two heaters, try to evenly distribute the work so that the equipment lasts longer.
Noise reduction during operation
Salts of magnesium and calcium create a deposit not only on the details, but also settle on the bottom of the tank. Therefore, when turned on, noise may be heard and the circuit breaker will trip. To avoid serious problems, you need to clean the Termex boiler at least once a year.
- Prepare the technique: disconnect from the network, drain the water.
- Turn off bolts from below and take out TEN.
- Descale the tank. If it has not dried, it will be easier to remove with a wooden spatula.
- For cleaning, you can use chemicals such as "Antinakipin". Or dissolve 25 ml of vinegar in 10 liters of water.
- In the same solution, the heater can be cleaned.
- If the magnesium anode is unusable, replace it.
Due to impurities in the water and scale, the water from the boiler could become cloudy, get an unpleasant odor.
Rinse the inner walls with warm water, wipe and connect the equipment.
The boiler switches off quickly or does not work at all
The main reason is the operation of the RCD. This is possible with a short circuit or leakage current to the housing. Besides:
- No power supply. Check the integrity of the power cord, plug, and the condition of the outlet.
- Faulty water pressure sensor. "Termex" delivers water when the pressure in the tank. Therefore, in the event of a malfunction, the part must be replaced.
- Low pressure in the water supply. It remains to wait for its recovery.
- Electrical contacts are weakened or oxidized. Check and tighten the pins.
- The temperature sensor is defective. Replacement required.
Eliminate body leakage
If the housing leaks, urgent measures must be taken. The reasons:
- After purchasing the equipment, a routine inspection was not carried out.
- The magnesium anode has not changed for a long time.
- A large number of impurities in water.
- Leakage current to the housing.
- High pressure in the pipeline (more than 2 Atm), which leads to deformation of the body. It is recommended to install a reduction gear.
- The gasket is deformed.
To determine the location of the leak, unplug the device and arm yourself with a flashlight. Carefully inspect the housing. If a leak is detected at the pipe connections, drain the water and reconnect the elements.
Sealing gasket may leak. First tighten the screws of the boiler cover. If this does not help, install a new gasket.
Leaking in the place of mounting the heater to the body?
It is necessary to completely replace it and the flange that holds the heater. In the event of depressurization of the tank itself, only a complete replacement will help, or better, the purchase of new equipment.
Have you noticed a problem at work? Take note of our publication and examine the device. If you doubt your skills, it is better to contact a specialist for repair.