The equipment is bought for help around the house, so rarely anyone thinks about the possible problems of the machine. But when this happens, the errors of Schaub Lorenz dishwashers help to identify the place of failure. It is enough to decrypt the code and fix the problem using a wizard or home repair.
How are Schaub Lorenz trouble codes decoded?
The code itself does not mean anything without decryption. The manufacturer always indicates the meaning of errors in the instructions. The built-in self-diagnosis system of the PMM is launched in case of problems in the operation of the machine, determining the cause of the breakdown and displaying symbols on the display. If you do not have the opportunity to look at the instructions, check out the list below:
DTCs on the panel light up
- F5 means that no water is poured into the dishwasher. The problem is a blocked inlet valve, lack of water supply, clogged filter mesh, pinched hose.
- F3 suggests that, on the contrary, the fluid continuously enters the tank. Close the inlet valve immediately. The reason is either a faulty triac on the module, or a faulty filling valve.
- F2. The waste liquid does not drain from the hopper, which means that there is a blockage in the dishwasher. It is necessary to clean the drainage system, check the impeller of the pump. It is also worth checking the pump and drain hose, sewer.
- F8 Problems with heater operation. It is possible that the thermistor or the heating element is out of order, covered with scale. Defective parts must be replaced.
- F1. An audio signal has triggered, the value of which is an overflow in the system. It is worth checking the pressure switch, which is responsible for the water level in the tank.
- FE. Problems with wiring. Inspect all PMM wiring to determine the location of damage.
- F6 / F7. Overheating has occurred. The problem is the temperature sensor, which gives the wrong signals to the heater.
- F9 Incorrect divider position. Contact the service center.
If the Schaub Lorenz dishwasher gives error codes, it could be a common network failure. In this case, a reboot will help.
Here's how to restart the dishwasher with your own hands:
- Unplug the machine.
- Wait 10-15 minutes.
Plug into a power outlet.
The code has not disappeared? So, the reason is not a failure, but a serious failure. What could happen to the dishwasher and how to fix the situation? Below we describe the probable causes of the problems, as well as the sequential steps to resolve them.
Causes of damage to the dishwasher Schaub Lorenz
In addition to obvious breakdowns, there are other malfunctions that are associated with errors in operation or wear of the components. Here are the unobvious causes of the malfunctions:
- Poor water quality. Due to the high rigidity, magnesium and potassium salts are deposited on the machine parts, forming scale. Therefore, it is recommended to periodically start the idle cycle for the prevention of formations.
- Poor cleaning of dishes before loading them into baskets. Solid and sharp food residues can block the pump, damage the pipe, which will lead to leakage.
- Incorrect PMM connection. If the communications are not arranged in accordance with the instructions, there is a risk of problems with the drain and rapid wear of the pump, which is more likely to be wasting its life.
What else often do Schaub Lorenz users complain about:
- The program does not start. The reason is a faulty plug and socket, fuse. Perhaps the door does not adhere well to the body of the machine, which prevents the mode from starting.
- Work stopped in the middle of a cycle. They turned off the power or water supply, the pause on the panel is on.
- A rumble and rattling are heard during washing. Check the placement of the dishes, whether the sprinkler rotates normally or is blocked by some object.
- Dishes are poorly washed. The point is overload and improper placement of devices, clogged filters and sprayers, insufficient amount of detergent.
Now you know why the dishwasher is not working normally. To correct the situation, do the repair. But only if the warranty has already expired. Otherwise, it is better to contact a service center.
Water is not poured into the hopper
Fault codes can report a similar malfunction. First of all, press the door closer to the body. Until the electronic lock is locked, washing will not start. Also inspect the inlet hose, which should be level, without kinks. Make sure that the inlet valve is completely unscrewed. If the actions did not help to cope with the problem, then:
- Disconnect the hose from the body.
- Use a pair of pliers to remove the filter mesh from the slot.
- Brush the mesh with soda and rinse under the tap.
Dismantling the filter mesh
The reason may also be in the Aquastop sensor. If water collected in the pan and a float floated, then the sensor automatically blocked the water supply to prevent a flood. Check the pan, drain and inspect the PMM. Leakage may have occurred in pipes and hoses as a result of damage.
The machine does not turn on
Check if there is electricity in the room. Inspect the power cord and plug for damage, connect another device to the outlet to make sure it is working. As a result of a breakdown or power surge in the network, the contacts of the power button could oxidize, and the electronic board could burn. To check the guesswork, you need to disassemble the panel:
- Disconnect the PMM from the network.
- Open the door, unscrew the bolts along the inner perimeter and from above.
- Divide the two halves.
Door separation
- Disconnect the wiring from the control module.
Disconnecting Contacts
- Inspect the board at the time of burning. Strip the button contacts.
If the board malfunctions, contact the wizard. Only he will be able to carry out professional diagnostics and determine whether repair is needed or whether it is worth replacing the element.
Water does not drain
Conditionally, problems with the drain are divided into two categories: those associated with blockages, and those that cause breakdowns. How to fix the problem? Start by checking the system:
- Open the hopper and remove the baskets.
- Pull out the filter in the pan and the screen behind it.
Filter disassembly
- Rinse parts with warm water, if necessary soak in citric acid to eliminate plaque.
- Use a sponge to remove water from the landing hole.
- Open the pump cover and inspect the impeller. It must rotate freely and not be blocked by an object.
Pump impeller cover
It is also worth checking the drain hose, siphon and sewer for obstruction. As a last resort, proceed to inspect the pump. In the event of a breakdown, the pump must be replaced. Here are the steps for disassembling:
- Disconnect the machine from the network and communications.
- Turn the housing over to the side.
- Remove the bottom panel.
- Disconnect the power connector from the pump.
How to unfasten contacts
- Loosen the clamp and remove the hose.
- Turn the assembly counterclockwise. Install a new pump and assemble the equipment.
Dismantling the assembly
The video shows the replacement of the pump in detail:
PMM stopped in the middle of a cycle
Make sure that the correct program is selected and the pause is not turned on. Check if the liquid is leaving the hopper normally or if the drainage system should be cleaned. Also, work could stop due to clogged spray. The circulation pump, under pressure, delivers water directly to the sprinklers, and already through their nozzles jets fly out and wash the dishes.
Perhaps the holes are clogged with leftover food. What to do in this situation:
- Remove the baskets from the tank.
- Remove the upper and lower impeller.
- Clean the nozzles with a toothpick, wash with soapy water.
Contamination removal
Dishes are poorly washed
Repairing a malfunction does not require serious intervention; it is enough to correct operation errors. Do this:
- Place the devices correctly according to the instructions. Small dishes are located on top, large - below. Forks and spoons should be in a separate compartment. Do not place the plates tightly against each other, as water does not reach the surface and noise is heard from the contact of devices.
- Make sure that large dishes do not block the rotation of the impeller. A knock may be heard.
- Add more detergent and make sure that the compartment is not covered by dishes.
- Remember to use salt, which softens water and prevents stains on surfaces.
- Set an intensive program at high temperature.
- Clean the filters in time.
These rules apply not only to the elimination of poor washing, but also to operation in general. The filter in the pan must be cleaned after each cycle.
Heating problems
Overheating or a complete lack of heating indicate a malfunction in the heater or temperature sensor. The system works like this: the module sends a turn-on signal to the heater. The heater warms the water, and the temperature sensor controls that it is heated to the temperature clearly indicated in the program. After that, the thermistor sends a signal to the board that the water has warmed up to the desired level, and the heater is turned off.
It looks like a flow heater
The heating element is in conjunction with the pump, and its sensor is connected to the base of the heater. It is enough to dismantle the pump yourself, disconnect the contacts and nozzles to get the part. After that, you can install a replacement.
Remember that the service life of the dishwasher is directly dependent on the user. The instruction is given not in vain, and in addition to the warranty period, there are a number of rules that must be followed. Take care of the equipment, drive idle cycles with special tools to remove plaque. Even plain soda and citric acid can handle scale and mildew. This will benefit both the car and your health. The video will help to understand the features of cleaning PMM: