Have you decided to start washing? As usual, you've set the program, but suddenly all the indicators light up at once. They may be constantly on or flashing. If you have an LG washing machine with a display, you'll see the PE error.
It might first appear while the machine was running, but then it stays on constantly. In either case, the machine won't wash.
So, we need to figure out what kind of PE error this is in LG washing machines.

So, the PE error code indicates problems with this very definition. However, it's not at all clear that the fault lies with the pressure switch itself.
Thus, the essence and meaning of the PE error is as follows: there is too much water slowly enters the drum, namely, it cannot reach even the minimum level in 25 minutes, or it arrives too quickly, that is, in no more than 4 minutes.
In order to deal with this problem, it is important to know what could be the reasons for the occurrence of the PE error in LG washing machinesThis will give you the opportunity to fix it yourself, and professional repairs may not be necessary.
So, the reasons for the PE error may be the following:
-
PE error in LG For filling the drum with water Essentially, the water pressure is responsible. It's regulated by the control unit on the washing machine side and the water pressure on the water supply line. This means the problem could lie in the electronic control unit or in the water pressure in the water supply line.
- The PE error may occur due to some malfunction in the machine program.
- The control module may be faulty.
- Since the water level sensor, or pressure switch, determines the amount of water in the drum, and the PE error indicates this problem, it can be assumed that the pressure switch is malfunctioning. Specifically, signals to the control unit may be incorrect or not being sent at all. This could be due to a faulty sensor itself or problems with the wiring harnesses leading to it.
- The problem could even be due to improper installation of the washing machine. When the drain is located below the level of the washing machine drum, water collects and immediately goes down the drain. This results in a PE error.
These are the main reasons that specialists had to deal with.
Now let's look at what you can do without calling a technician from a service center.
- If the problem is with the water pressure from the water supply, you can try opening the inlet valve more or less to adjust the pressure.
- If a program error occurs, immediately unplug the washing machine from the power outlet, wait 10–15 minutes, and then plug it back into the electrical network.
- The pressure switch may not work due to a simple blockage in the tube. In this case, simply blowing it out will suffice.
- You can repair the connections of the wire harnesses connecting the water level sensor. If you notice that the wires have broken for some reason, you can connect them with a twisted joint.
CAUTION! The washing machine must be unplugged! Be sure to insulate the connection with heat shrink tubing!
- And, of course, you should check the correct installation of the washing machine, or more precisely, the location of the drain.
If you encounter any difficulties in fixing the PE error on your own, you can always contact a specialist."
Thus, let's systematize Signs and causes of occurrence and methods for eliminating the PE error in the table.
| Signs of error | Possible cause | Methods of elimination | Price (work and spare parts) |
| LG washing machine displays error PE.
The wash does not start.
|
Insufficient or excessive water pressure. | Adjust the water pressure in the water supply system.
|
from 1800 to 3800 rubles. |
| Program failure. | Disconnect power for 10–15 minutes. | ||
| Pressure switch malfunction. | Blow out the pressure switch tube or replace the pressure switch. | ||
| Incorrect installation of the drain. | Install the drain according to the washing machine instructions. | ||
| The PE error appears immediately after launching or during program execution. | The control module or microcircuit is faulty (failure, melting) | Repair of elements in the control module.
Replacing the control unit microcircuit. |
Repair:
from 2900 to 3900 rubles Replacement:
|
| PE error appears and disappears | The wiring inside the washing machine is damaged. | Twisting wires.
Replacing cables. |
from 1400 to 3000 rubles |
If you are unable to fix the PE error on your own and need professional repairs, simply call a technician.
Our specialists will contact you immediately to save your LG appliance: they will arrive at the appointed time, determine the cause of the malfunction, and, if necessary, offer and provide repair services.
Washing machine repair is open daily from 8:00 to 24:00.

