Dishwashers of the Delongi brand have great capabilities not only in terms of functionality, but also in monitoring the performance of all important components of the device. The self-diagnosis system is able to calculate any malfunction of the PMM and notify the owner in a timely manner. On models with a display, the fault code is displayed on the control panel as a combination of letters and numbers. What are the errors of De’Longhi dishwashers talking about and how to fix them yourself? We will talk about this below.
How De’Longhi Trouble Codes Decrypt
Failure of the PMM can occur both because of the banal clogging of the filter, and because of the failure of the control module. To understand how to fix the breakdown, you must have full information about the problem. First, find out what the alphanumeric combination on the display means.
Consider the values of error codes that are available to the user without a service test:
- E1 - means that the filling valve draws water longer than the time set for this. Possible causes: insufficient pressure in the water supply system, problems with the valve itself, the dishwasher door is poorly closed. All this is easily eliminated without assistance.
If water is poorly collected due to a breakdown of the control module or the pressure switch, then contact a service center.
- E4 - an error signals a water leak. In this case, the AquaStop leakage protection system is activated, the washing is completed and the drain pump is started. It is necessary to check all the functional units of the device from which water can flow for defects: hoses, door cuffs, internal nozzles, the camera itself. If the problem lies in the pressure switch or drain pump, the part will have to be changed.
- E8 - a failure in the water supply due to improper operation of the filling valve, which will need to be changed. Also, the cause of the malfunction may be in the incorrect connection of the drainage hose. If a triac occurs on the control board, which is responsible for the valve, you must call the wizard for further testing and repair.
- E9 - sticky buttons, blocking sensors on the control panel. The reason may be a clogged button. To eliminate the malfunction, just clean the panel from dirt.
If an error appears on the display for the first time, it is first necessary to eliminate a malfunction in the control system. To do this, you need to reboot the device.
How to restart PMM:
- disconnect the device from the power supply;
- wait 15 minutes;
- turn on the PMM again.
If the reboot did not bring a result, then you need to start repairing the dishwasher.
Causes of De’Longhi Dishwasher Damage
Other malfunctions indicate the malfunction of the machine. Most often, owners of Delongi dishwashers face the following problems:
- The machine does not turn on. The first thing to do is to check the pressure in the water pipe, the presence of voltage in the network, and also whether the door of the device is tightly closed.
- Water remains in the chamber. It is necessary to check the connection of the drainage hose, as well as the drain filter and the pump for possible clogging.
- The dishes are poorly laundered. Possible reasons: improper loading, insufficient detergent, incorrect program for washing.
- Dishes do not dry. The problem is most likely due to insufficient rinsing or improperly selected washing conditions.
- Detergent remains in the dispenser container. Most likely, the dishes are improperly loaded, so it closes the dispenser and does not allow water to wash all the powder.
All possible reasons for the malfunction of the unit are also described in the instruction manual, where the manufacturer gives recommendations for their elimination. What to do if there are no instructions at hand? Read below.
Repair of malfunctions of the Delongi dishwasher
The owner, who knows the design of the dishwasher and how its mechanisms work, is able to eliminate most breakdowns on its own.
If the warranty period of the equipment is still valid, it is better to contact a service center. In the event of a poorly performed repair, subsequent troubleshooting of the warranty will not be possible.
Consider the most common failures of the PM’s brand De’Longhi.
Before starting any repair work, the equipment must be disconnected from the power supply and water supply.
Problems of the filler and drain system
Owners are faced with a similar situation quite often. Why does this happen? Most often, the problem must be sought in the clogging of the inlet hose of the water supply, more precisely, the filter mesh.
How to fix the malfunction:
- prepare a small container or cloth (possibly liquid will leak from the pipe);
- disconnect the hose from the device;
- remove the inlet filter, which is located behind the tube, with pliers;
- Rinse the net thoroughly and clean the hose of any debris.
Ensure that the filling valve itself is operational. If its coils are burnt out, the part needs to be replaced.
The drainage path becomes clogged even more often. Rare pipe cleaning, food debris on dishes that are poorly removed before loading into the chamber, adversely affect the operation of the drain system. In the future, this threatens to break the pump itself.
If the machine does not work due to a clogged drain, proceed as follows:
- open the camera and remove the trays from it;
- at the bottom of the hopper, unscrew the filter;
- clean it and the net from debris;
- remove the protective cover and clean the impeller of the pump from dirt;
- reassemble the assembly in the reverse order.
If the drain pump fails, it will have to be dismantled and a new spare part installed.
For more details on how to clean the drain system and unlock the dishwasher pump, see the video
Poor washing quality
The unsatisfactory result of washing in the machine most often occurs due to a violation of the operating rules of the unit. The following points should be excluded:
- Incorrect loading of dishes. Large plates can block the dispenser with powder or rocker arms, so dirt is poorly washed. Solution: reinstalling dishes in the chamber.
- Incorrect selection of the washing program. If an insufficiently powerful program is set, grease and dried contaminants may remain. Therefore, for heavily soiled dishes, choose modes with longer duty cycles.
- Not enough detergent used. Increase the amount of powder and rinse aid. Perhaps you use it less than expected, and the dishes are poorly washed.
- Locking rocker nozzles. Not only the plate can block their rotation, but also improper installation or clogging of filters in the base of the detergent drawer. In this case, they will need to be reinstalled or cleaned. If the nozzles themselves are clogged, their holes must also be cleaned.
How to clean the nozzles from dirt, you can see the video
Regularly clean the PMM components in which debris can accumulate. This will protect your equipment from serious damage.
If the problem of poor washing was not solved, it is necessary to check the operation of the circulation pump or heater. In case of malfunction, installation of new parts will be required. Doing it yourself is not advisable to repair such damage. Better if a specialist does this.
Water leak
Leakage of seals, damage to hoses or the dishwasher housing will certainly be felt by leaking. This situation requires active action, since increased humidity contributes to corrosion and failure of the control module. Therefore, you need to carefully inspect all the details and find the leak. How to act:
- Inspect the inlet and drain hoses. If there is damage, replace them. Also check their fasteners; perhaps the clamps need to be tightened.
- Check the door seal for leaks. If it is worn, replace it.
- Inspect the drain pump seal. If worn, install a new part.
If the case itself is damaged, you cannot do without calling the wizard.
How to replace the seal on the PMM, see the video below
The dishwasher does not turn on
If the equipment stopped in the middle of a cycle or does not turn on at all, it is necessary to check the voltage in the network, as well as inspect the cable itself and the plug for possible damage. You can try rebooting the device (we wrote how to do this at the beginning of the article). If the machine does not work, most likely the electronic module has failed. It needs to be repaired or will need to be replaced, the master will say only after its diagnosis.
You can troubleshoot some malfunctions of the De’Longhi PMM yourself. But you should not rely on your own strength in all cases, since such amateur performances can further harm your technique.
Useful video on how to improve your dishwasher