Lack of heating water in the dishwasher

The true symptom of the fact that the dishwasher does not heat the water, is practically not washed dishes at the end of the washing process. In addition, confirmation of the diagnosis is wet, not dried dishes. How to figure out why a dishwasher doesn’t heat water?

Causes of the problem

It so happens that even at the first start-up the car refuses to perform its functions. It is unlikely that a new car could break down, most likely due to improper connection. If the device is not connected in the prescribed manner, the machine constantly collects and drains water.

With a normal connection of the drain hose, a competent installer does two smooth kinks hose: one directly at the entrance to the device, the other at the dock with the siphon. Without it, the water from the sewer can go back to the car. Therefore, if normal drainage is impossible, there will be no circulation of water in the dishwasher. Accordingly, the water temperature will differ from the parameter set by the program, that is, the water will be cold, and the consumer will blame the heating element for everything.

In this case, it is not necessary to engage in amateur activities, it is better to contact an installation specialist.

But if the connection to the cold water system is done correctly, and the dishwasher still does not heat the water, it is necessary to approach the troubleshooting more thoughtfully, or rather, to analyze the interaction of all the component parts of the apparatus that have an effect on water heating. There are three main reasons for this:

• failure of the heating element;
• thermostat does not regulate temperature;
• faulty control system.

Check and replace the heating element

New dishwashers are necessarily equipped with systems self diagnostics. But in cases when there are troubles with heated water, diagnostics often do not show error codes.

It is necessary to turn the machine over and, having removed the back wall, to obtain admission directly to the heating element. Tan is checked visually and with the help of a tester and, if it is faulty, it is necessary to prepare for replacement. On the ten, due to the hardness of tap water, it is very tight calcified scum, which dramatically reduces the performance of this element. Therefore, Teng is considered a consumable.

TEN of the Electrolux dishwasher

Replacing the heater is a very expensive operation. The fact is, if such a device as a bosch dishwasher does not heat the water, then the heating element must be replaced with a whole module, which causes considerable financial costs.

Diagnostics and repair of thermostat and control unit

Thermal sensor or thermostat is one of the weak points of most dishwashers. It is necessary to clearly understand that it was he who failed, therefore the diagnostic algorithm will be as follows:

• make the shutdown of the device from the supply voltage and water supply;
• remove all the baskets for dishes;
• dismantle the sprinkler bottom and remove the garbage filter;
• install the device upside down and remove the side fasteners;
• gently disconnect the drain and raise the bottom of the dishwasher
• getting access to the thermostat, disconnect it from the lead wires;
• We clean the contacts of the thermal sensor and check it with a tester.
• if the thermostat is out of order, replace it and reassemble the dishwasher, having previously checked the wiring leading to the thermostat.

Gorenje Dishwasher Temperature Sensor

It happens that the temperature sensor is in order, and all other elements are checked, and the water is still cold. In this situation, most likely out of standing Control block, or one of its constituent elements. In this case, the “computer” of the dishwasher does not work, which compares all data from other nodes of the apparatus and gives the command to heat the water. In case of failures, the tenu command for heating water may not pass.

The unit is very expensive, so its repair or replacement should be done only by an experienced specialist.

In addition to the main causes of failure to heat the water, there are additional. It seems that they have nothing to do with water heating, however this is not the case.Carefully analyze the following reasons:

• dishwasher filter clogging;
• wrong washing mode;
• failure of the pressure sensor.

Eliminate clogging filter

The dust filter is considered to be one of the main components of the dishwasher. Its functional task is not to allow leftover food and mud waste to penetrate to the main work items. Gradually collecting dirt in the filter cavity prevents normal circulation of water in the device, so the heating element is turned off, and the dishwasher does not heat the water. To normalize the operation of the machine, it is necessary to clean the filter.

The bottom line is that when you turn on the washing program, the water should be well communicated between the cumulative tank and special tanks. The heating element at this time maintains a constant temperature required for high-quality washing. In the event that the filter is partially or completely clogged with debris, the circulation becomes far from the norm. Water accumulates in the tank, and the system will be forced to replenish reserves with cold tap water.Tan will not be able to warm it.

It is important for consumers to remember that in order to avoid the manifestation of this malfunction, it is necessary to clean the dishes well before installing them in the dishwasher.

It is also not superfluous to look into accumulation tank while working. If there is a filling with water, it is necessary to quickly clean the filter. As a result, the normal circulation will be restored and the problem with water heating will disappear if the heating element does not fail or the thermistor does not burn out simultaneously.

Dishwasher mode selection

Very often, the water in the dishwasher does not heat up due to incorrectly set mode. If the electromechanical regulator is fixed at 40 degrees, and the toggle switch is set at risk 90, then the device heats the cold water to no more than 40 degrees.

In the most advanced models, there is necessarily such a mode as “delicate wash". When working in this mode, the water also does not heat up above 40 degrees. In order to avoid such troubles, it is necessary to carefully study the technical description of the device.

Features of the pressure sensor

The main purpose of this site is to control the circulation of water in the car. If the pressure sensor ceases to function, then continuous circulation water in the system, which ultimately leads to its automatic drain. Naturally, the heating element with constant circulation simply does not have time for proper heating of the water, and washing is done with cold water. The problem is resolved by replacing the sensor, although you can try to clear its contacts and check the supply wiring.

As a result, it should be noted that if the water heating is gone - no need to be frightened, and by the method of consistent exclusion of the failure options, identify and eliminate the true cause of the failure.