LG manufactures modern technology, which is equipped with the latest developments and technologies. The dishwasher is no exception, but despite its quality, it is prone to breakage. The occurrence of malfunctions is facilitated by: improper installation, dishwasher operation, quality of detergents used.
You can repair your LG dishwasher yourself.
Error codes dishwashers "AlGi" collected and described in detail in a separate article.
The reasons for the breakdown of the dishwasher "AlGi"
Before starting repairs, you need to find out why the dishwasher has broken. This can be done thanks to the PMM self-diagnosis system - usually, when a breakdown occurs, a code is displayed on the display. If there is no display, the indicators on the control panel blink. Having decrypted the code, you can understand where to look for the problem.
Pay attention to the signals generated by the dishwasher. If she began to buzz at work, or the dishes are poorly washed, you need to inspect the equipment.
Below are the main symptoms and causes of malfunctioning dishwashers "AlGi":
- Water poured into the car, but the washing does not start. What's the matter? In a blockage. This is what is checked first. The filter, nozzles of a sprayer could clog. The circulation pump, which pumps water into the machine, may have failed.
- If water overflows in the dishwasher, check the pressure switch. In the event of a sensor malfunction, leakage may occur. It is necessary to diagnose and replace the pressure switch.
- The dishes are poorly washed, the water does not heat up. The reason may be a breakdown of the thermistor, heating element or their wiring.
- After an exhausted washing cycle, the water does not drain from the tank. The drain pump is diagnosed, the resistance of the windings is checked with a multimeter. If the part is serviceable, the drain path is checked for obstruction: filter, pump, hose, siphon.
- The dishwasher does not turn on. Malfunction of mains, fuses or sockets. Diagnostics and replacement of broken parts.
- Leakage. When a tank leaks, it will have to be a difficult replacement. Connections and tightness of hoses, seals on the door are examined.
If an error is displayed on the machine screen, do not rush to take action. Reboot immediately: disconnect the PMM from power for 15-20 minutes. After connecting, the code is not displayed? Then continue to work.
How to repair a dishwasher with your own hands
How to eliminate typical malfunctions of dishwashers "AlGi" described in the instructions. The structure of equipment of different brands may be slightly different, so before you start repair, make sure where this or that part is located exactly.
PMM does not start a wash cycle
Inspect and clean the main filter. How to do it:
- Unplug the machine. Shut off the water supply.
- Open the hopper door.
- Pull out baskets and dish trays.
- Below is a filter.
- Pull it out of the case.
- Depending on the PMM model, there may be a metal mesh behind the filter. It also needs to be pulled out.
- Wash parts using a stiff brush.
With clogged nozzles, cleaning their holes is quite simple:
- Remove the upper and lower sprinklers.
- Use a toothpick to clean their holes.
If there is a malfunction, the rocker arms will not rotate, so washing the dishes will be of poor quality. Correcting the situation will help the replacement of elements:
- Remove the lower beam.
- Using a grip, unscrew the sprinkler mount.
- Then screw fasteners by hand and remove from the seat.
- Secure the new hardware and install the sprinkler.
If the upper beam is attached to the basket, the stops must be removed:
- remove the upper basket;
- press and unscrew the sprayer;
- install the new rocker in the reverse order.
Installing a new circulation pump (engine) will cause difficulties. However, to perform an independent replacement is quite realistic.
Why is a pump replacement necessary? He is responsible for supplying water to the tank of the machine, to nozzles and sprinklers. A sign of a malfunction with the pump will be noise during operation.
What do we have to do:
- After releasing the hopper from the baskets, pull out the filter.
- Use a sponge to remove any remaining water under the filter.
- Put the technique “on your back” to gain access to the bottom.
- First you need to disconnect the drain pump.
- Unscrew the pump mount.
- Turn it clockwise and remove.
- Disconnect the connectors from the engine.
- Press out the metal spring that secures the motor to the housing.
- With a grip, loosen the clamps and disconnect the hoses going to the pump.
- It remains to remove the metal clip from the old pump and install on a new one. Assembly is carried out in reverse order.
Too much water in the tank
If the dishwasher tank is full of water, the dishes are poorly washed or there is a leak, check the level sensor. Why is the sensor not working? Perhaps the pressure switch has already worn out, its contacts have burned out or the pipe has clogged. Before replacing, check and clean the tube for obstruction.
Look at the instructions for exactly where the pressure switch is located in your model. In an AlJ dishwasher, the part may be located below or behind the cabinet.
Consider the last option:
- remove the rear panel of the PMM by unscrewing the mounting bolts;
- disconnect the pressure switch hose;
- unscrew the fixture of the device;
- disconnect the wiring;
- install a new part and check the operation of the machine.
Heater does not work
The reason for the lack of heating in the dishwasher may be a faulty heater, as well as a thermistor that measures the heating temperature in the tank. If the diagnosis showed a breakdown of the temperature sensor, it needs a replacement.
How to carry out repairs, we will tell you:
- open access to the bottom of the PMM;
- disconnect the drain and circulation pump as described above;
- a thermistor is attached to the pump assembly housing;
- remove the thermostat cover, disconnect the wires;
- wring out fastening latches, pull out a detail from a landing nest;
- put the o-ring on the new thermostat;
- lubricate the seal to easily install in the socket; detergent can be used;
- Install in the reverse order.
Drain problems
When water leaves the tank poorly, the drain path and pump are checked first. How to get to the pump, you already know. Consider how to clean the drain from clogging. Food debris, debris, glass fragments - all this gets into the drain and blocks the system.
- Remove the drain filter. Clean the part.
- Open the pump cover. To do this, press and pull it up.
- Remove foreign objects and debris from the impeller.
- Disconnect and clean the drain hose.
- The last stage of verification is the cleaning of the siphon and sewage system. Use special tools for this.
The dishwasher does not turn on
Trying to run the program, but the control panel does not respond? Does technology show no signs of life at all? Connect another appliance to the outlet of the dishwasher. If it works, then continue the inspection.
What to do:
- if damaged, the network cable must be replaced;
- If the fuses on the electronic circuit board blow out, repairs will be required.
The most unpleasant breakdown is associated with the control module. You can’t repair it with your own hands — you can damage the part even more. It is better to contact a service center or call a wizard.
Leak repair
A time-consuming repair is due to leakage of the PMM tank - you will have to completely disassemble the equipment. When the hoses are leaking, they are immediately replaced by new, loose connections tighten.
Did you find a leak from the door? Her seals probably worn out. Replacing them is simple - remove the old seal around the perimeter and install a new one.
Do it yourself with your LG dishwasher. But there are also breakdowns that require specialist intervention. Be mindful of technology issues.