Error F03 in an Indesit washing machine

Modern Indesit washing machines automatically diagnose the problem when they malfunction and display a specific code. By decoding the code, you can avoid wasting time searching for the cause and immediately identify the source of the problem. The key is to correctly interpret the system's message. For example, error code F03 on an Indesit washing machine means that the temperature sensor or heating element is faulty. We'll explain what to do in this situation below.

Let's identify this code

If your Indesit washing machine displays the "F03" error code, it means the machine is unable to heat the water to the required temperature. The system's allotted heating time expires, the control board receives no information about the completed command, and the cycle is paused. Washing can only resume at low temperatures. The washing machine displays the "F03" code when one of two malfunctions occurs:

• the heating element relay has stuck;
• The temperature sensor is broken.

The "F03" error can also occur on machines without a display. In this case, the "Speed" and "Quick Wash" or "Speed" and "Extra Rinse" lights on the dashboard will flash simultaneously. Another bad symptom is cold glass of the door during the washing stage. To correct the situation, it is first necessary to accurately determine the cause.

How can I fix the problem?

There's no point in using the machine with this problem. The wash will be poor, and the system will malfunction due to a command inconsistency. Therefore, we turn on the rinse cycle and check the machine's functionality. Here's what to do:

• empty the drum of laundry;
• reset the error and disconnect the machine from the power supply;
• wait 15-20 minutes and reboot;
• We ring the resistor group on the control board with a multimeter, with a rating of 180-220 kOhm;
• We check the temperature sensor with a tester; the normal response to heating from +20 degrees is more than 20 kOhm.

People who are not versed in electronics are better off avoiding experiments and should immediately contact professional technicians.

The diagnostics conclude with a visual inspection of the heating element relay circuit and the control board. If there is obvious damage to the insulation, traces of burning, or loose contacts, repair and replacement of the components are required.

Reasons for lack of heating

The "F03" error can be suspected in an Indesit machine even before it appears on the display. There is a clear symptom: the washing machine stops heating water. This can be indicated by cold items in the drum after the cycle is complete or a cold door 15 minutes after starting. This indicates that the machine isn't heating up to the set temperature. To repair the unit, we first conduct diagnostics. There can be many reasons for the lack of heating.

1. User error. The lowest temperature setting was likely selected initially. The solution is to check the cycle with the new program.
2. Clogged pressure switch. During operation, the sensor tube becomes clogged with threads, hair, and small debris. This leads to incorrect detection of the water level; more precisely, the pressure switch fails to signal that the water level has been filled, preventing the system from issuing a heating command.
3. There's a break in the electrical circuit at the heating element. Carefully inspect the wiring connected to the heater. If there are any signs of damage, replace it.
4. A faulty heating element. A more serious problem caused by scale buildup or wear. The answer to "what to do?" is simple: test it and, if necessary, replace it with a working one.
5. Broken temperature sensor. Remove the back cover, remove the bracket, and unclip the wiring. Next, use a screwdriver to unscrew the shield and nut, and replace the sensor.
6. A faulty heating element relay or programmer. Cause: overvoltage or manufacturing defect.

Trying to repair the heating element relay or circuit board yourself is not recommended. These mechanisms are very complex and sensitive, and any attempt at repair will result in a costly replacement. It's best to contact a professional immediately.

   

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