Indesit IDL 40 dishwasher malfunctions
Indesit dishwashers are extremely popular due to their affordability. The price of these appliances is significantly higher than that of other manufacturers' models. Malfunctions in the Indesit IDL 40 dishwasher can occur within a few years of purchase. Unfortunately, the appliance is very susceptible to power surges, which can damage the electronics. Let's look at the most common malfunctions and how to fix them.
Malfunctions typical for the Indesit IDL 40 dishwasher
It's impossible to predict exactly when a dishwasher will break down, but it's important to understand why. Any part can break with constant use. Here are some helpful tips on how to identify the cause of problems and fix them.
- Pay attention to external signs. Is your dishwasher running intermittently or not turning on at all?
- Look at the flashing indicators on the display. The system signals certain types of errors, which can be deciphered by consulting the operating instructions.
- Check how well your dishes and cutlery are washing. Poor cleaning results often indicate a faulty heating element.

- Is the water getting hot enough? If this is the problem, you need to diagnose the heating element and wiring. It's worth carefully inspecting the electronic module.
- Listen for any unusual noises coming from your dishwasher. This is often caused by a worn motor bearing. Sometimes the seal fails, causing the lubricant to be washed out, resulting in a corresponding squealing sound.
Suspicious sounds can also be heard when glass penetrates the pump impeller.
- If water is not being collected, the cause is most often a problem with the filling system.
- A leak indicates that the door isn't closing tightly enough. The rubber seal wears out, becomes deformed, and becomes damaged over time. In some cases, the leak isn't coming from the door, but from the tank itself. In this case, disassembling, removing, and replacing the element is necessary.

Some users are experiencing an unpleasant squealing noise from their Indesit IDL 40 dishwasher. This could be due to a faulty control module. However, only a thorough diagnostic can confirm the cause of these characteristic symptoms. If the drain stops working, you need to carefully check the filter, hose and compressor. Let's take a closer look at what to do if specific parts fail.
Problem with the heating element
Heating elements often fail due to scale buildup and power surges. Tap water in some areas is extremely hard and contains a lot of salt, leaving a deposit on the surfaces of the heating elements. The heating element overheats and burns out. Furthermore, it uses significantly more electricity than usual. How do I replace the part?
- Disconnect the dishwasher from the power supply.
- Turn off the liquid supply.
- Place the dishwasher on its side.

- Open the bottom panel.
- Check the serviceability of the heating element, which is connected to the pump in Indesit IDL 40 machines, by disconnecting its wiring and applying the multimeter probes to the contacts.
If a part breaks, it must be completely replaced. Loosen the clamps, disconnect all adjacent components, and remove the wiring. Then remove not only the heater but also the pump.
Important! Remove the heating element by turning it clockwise only.
The new heating element is installed after removing and replacing the seal from the pump. The device is easily installed after lubricating the connections with a special compound. All the above steps are performed in reverse order.
When the pump does not drain water
A lack of drainage may indicate a problem with the dishwasher's drainage system. First, open the dishwasher door and remove all shelves and trays from the wash chamber. Remove the filter element and metal mesh (if included). Rinse all parts under running water, and gently wipe away any accumulated water with a dry sponge.
If you press and pull the pump cover, you may find signs of a blockage. The pump can be accessed through the lower housing. It's also important to check the functionality of the pump wiring. The contacts are checked using a multimeter. If the components are faulty, repair and replacement will be necessary.
The door seal is leaking water
Indesit washing machines begin to leak because the rubber seal wears out. This is one of the few components that can be removed and replaced without the help of specialists. Simply open the sash, detach the part around the perimeter, take a new one, insert it into the grooves, and then remove the excess with a knife or other cutting tool.
After the replacement, it's important to check the repair's accuracy. To do this, run the dishwasher in test mode. If there are no leaks, all repairs were performed correctly.
Electronics failure
If the control module fails, you'll have to spend a lot of money, time, and effort. Each section of this vital component is responsible for a specific dishwasher function. Trying to repair the Indesit IDL 40 yourself in this case is not recommended; it's better to entrust the painstaking and complex work of fixing the problem to an experienced technician.
You can try to diagnose the problem yourself. To do this, remove the front panel of the case and unscrew the screws holding the module in place. After disconnecting the wiring, you can assess the condition of the component. It's best to immediately photograph the locations of all screws and panels to ensure accurate reassembly.
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