6 reasons why a Leran dishwasher breaks down: do-it-yourself repair

What are Leran dishwasher errors for? The codes are provided by the manufacturer to quickly determine the location of the breakdown. When a failure occurs in the dishwasher system, self-diagnosis immediately starts – checking all nodes. After a breakdown is found, a fault code lights up on the display. We will analyze the meaning of errors and the elimination of common PMM breakdowns.

How are Leran fault codes deciphered?

Did the dishwasher stop the robot and display a fault code on the display? In this case, the equipment will not continue to work until the cause of the breakdown is eliminated. To find it, study the meaning of errors. This is what the display means:

Codes are flashing on the control panel

  • Error 1. Water is not taken into the hopper. In the water supply system, the water pressure is low, or the supply is completely turned off. The intake filter-mesh is clogged, the hose is clogged, the valve is closed.
  • Error 4. Dishwasher leak. Check the tightness of the door, the quality of the rubber seal. Inspect all hose connections for tightness. Eliminate sticking of the “Aquastop” sensor.
  • Error 8. Problems with adjusting the operation of the intake valve. It is worth checking the electronics, wiring, relay on the board and valve coils.

Important! In the event of a leak, turn off the water immediately and unplug the appliance from the mains. Only then should you start troubleshooting.

Found out what this or that error code means. If this is the first time you have noticed the symbols on the panel, then a reboot will help. How to reset the dishwasher:

  • Disconnect the plug from the outlet.
  • Reconnect after 10-15 minutes.

If there is a network failure, the codes will no longer appear on the screen. But if the problem persists, then you need to repair and fix the problem. Malfunctions are divided into two categories, which arise due to improper operation and wear of parts.

Thus, incorrect placement of dishes and cleaning of the filter lead to blockages and poor washing quality. Of course, if your machine has already worked for 5-7 years, then it is fair to assume that the nodes have exhausted their resource. Remember that the correct connection of equipment affects the duration of the PMM.

Causes of breakdowns of the Leran dishwasher

The meaning of the errors can tell you where to look for the place of the breakdown, but self-diagnosis does not work for every problem. Sometimes the symptoms of a problem are so obvious that they cannot be ignored. Here is how the Leran dishwasher reports a breakdown:

  • PMM does not turn on. The machine is not connected to the mains, the plug is not in the socket. Blown fuse or wiring. Door lock did not work.
  • The equipment does not work, water does not enter the tank. The reason is a clogged filling system, a malfunction of the inlet valve, a kink in the hose.
  • Abundance of foam in the chamber. The problem leads to a leak. Foam is formed due to unsuitable detergent or its excess. Spilled rinse aid at the bottom also actively foams.

Bunker filled with foam

  • Heating problems can be provoked by a pressure switch, which is why the machine endlessly fills and drains water. Malfunction of the heating element and temperature sensor.
  • The liquid does not drain from the tank. The reason is a clogged drain filter, pump, hose or sewer. Perhaps the impeller is blocked or the pump is broken.
  • The machine does not wash dishes well and makes noise during washing. The point is improper loading of dishes, blocking the sprayer. The causes of breakdowns often lie in the poor cleaning of dishes from food debris that enters the filter and pump.

How to fix the situation with your own hands? Sometimes it is enough to clean the parts to restore the operation of the equipment. But in other cases, a malfunction repair may be necessary. Below we describe the sequence of disassembly and repair of PMM at home.

Machine won’t turn on or start

What’s happened? After completing the usual actions, you are trying to select a program, but the equipment does not respond to pressing? The panel does not light up and the wash does not start? Check if the PMM is connected to the network. Perhaps last time you turned it off and forgot. Next, inspect the fuse or surge protector.

This part is located immediately behind the network wire. Track where the cord is connected to the PMM case, remove the panel and inspect the filter. This is the only element that stands between the electronics of the machine and the electricity in the network. During a power surge, the fuse takes the blow, as can be seen from the swelling and burns. In such cases, it is enough to unscrew its fasteners, disconnect the wiring and install a new part. You can buy a replacement in stores, the main thing is to name the brand and model of the dishwasher.

This is what the filter looks like

Why won’t the machine start? It is worth checking the flow of water into the tank. Press the housing door tighter, make sure that dishes do not interfere with closing. When the door lock is locked, a click is heard. After that, the intake of water into the tank begins. If you don’t hear a click, the lock may be broken and needs to be replaced. What to do? Buy a replacement part and get to work:

Important! Disconnect the machine from the mains before starting work.

  • Open the hopper door.
  • Loosen the screws around the perimeter.
  • Split two panels.
  • Disconnect the interlock wire.

Door lock

  • Install the new part in reverse order.

Also check if the water flows into the tank normally. Turn the shut-off valve, clean the filter. For this:

  • Disconnect the fill hose from the housing.
  • Pull out the mesh filter behind it. Use pliers.

The filter can be located directly behind the hose

  • Rinse with running water or brush with baking soda.
  • Also inspect the inlet hose. If it is bent, straighten it. Remove internal blockage with water pressure.

intake valve problems

Continuous flow or, conversely, the absence of water in the tank indicates problems with valve adjustment. In the closed position, the membrane inside the element prevents the flow. To start work, the membrane opens and the liquid begins to climb into the tank. Valve coils are responsible for the transmission of electronic impulses, which fail due to voltage drops in the network.

How to replace a part:

  • The valve is located behind the hose and mesh.
  • Turn off his contacts.

The item is on the bottom of the case.

  • Open the clamp and disconnect the lead hose.
  • Unscrew the fixing bolts.

After dismantling, you can put a serviceable element. If you do not know how to choose the right part, take an old part and go to the store with it.

No heating

Problems with water heating affect the quality of washing dishes. The most common cause of failure of the heating element is scale. These are deposits of potassium and magnesium salts, which, sticking to the heating element, prevent heat transfer, which causes the part to overheat and burn out. To prevent breakage, it is worthwhile every few months to carry out prophylaxis with anti-scale agents or ordinary citric acid.

If the flow heater is no longer to be used, then follow the instructions for replacing the element:

  • Disconnect the machine from the network and communications.
  • Turn the body sideways.
  • Remove the bottom panel.
  • In a bunch of nodes you will find a heating element with a pump.
  • Unplug the heater chips.
  • Loosen the clamp and remove the hose.

Flow heater

  • Turn the pump and remove from place.
  • Install a new heating element.

The temperature sensor is located in the body of the heater. If necessary, it can be easily replaced by simply disconnecting the connector. See video for details:

There is water in the bunker

In time, the machine must complete the washing cycle and drain the waste liquid. But in fact, the cell is full of water. First of all, clean the system of debris and food debris. Do this:

  • Open the hopper and remove the baskets.
  • Turn the filter counterclockwise and pull it out.

Removing the filter

  • The system consists of a main, coarse and fine filter.
  • Clean all the elements and rinse under the tap.
  • Scoop out water from the planting hole with a sponge.
  • Remove the pump cover and inspect the impeller.
  • It must not be deformed or blocked by a foreign object.

How to clean the filter, the user describes in the video:

Also inspect the drain hose, siphon, and drain for clogs. To avoid problems in the future, clean the filter after every wash or at least once a week.

Foam in the chamber and water on the floor

Excess foam can form in such cases:

  • Incorrectly selected detergent. Powder or gel should be not just for washing dishes, but for an automatic machine.
  • Pour a lot of detergent into the container. Use less product.
  • Rinse aid was accidentally spilled. You have already seen what this leads to, so remove the excess funds.

Increased foam formation

How to eliminate foam? Follow instructions:

  • Remove foam by hand.
  • Run an idle wash or rinse cycle.
  • Repeat until soapy water is replaced with clear water.

Foam can cause a leak by seeping through the door. A small amount of water near the body may indicate condensation, so do not rush to open the machine immediately after the end of the cycle.

If it’s leaking from the rear, inspect the hose connections. A leak from under the sump indicates that the cause is inside the PMM. It is possible that a damaged pipe or connections are leaking, you need to drain the water from the pan and inspect the nodes.

The machine makes noise during operation, the devices are poorly washed

Both of these problems are primarily related to improper loading of dishes. Because densely spaced appliances beat against each other and interfere with the ingress of water with detergent. The instruction manual will help you properly distribute the dishes in the baskets.

It is also important that large utensils do not block the operation of the sprinklers. In the normal state, the rocker arms rotate from the force of water pressure and spray water through the nozzles. The latter can become clogged with food and debris, so wash them with soapy water.

Here’s how to unscrew the sprinkler

Select the correct washing program according to the degree of soiling. To avoid breakage will help compliance with the rules and recommendations:

  • Add special salt to the tank, which softens the water, prevents scale build-up and streaks.
  • Clean filters at least once a week.
  • Choose a powder only for dishwashers.
  • Remove food residue from dishes before loading.
  • Install a voltage stabilizer to protect the electronics of the machine.

You can deal with breakdowns yourself, but it is best to prevent their occurrence. We hope our recommendations will help you restore the operation of your equipment.

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