PF error in LG washing machine

The PF error code in LG washing machines is quite rare. But if it does appear on your "home helper," you shouldn't put it off. This is a sign that something is wrong with the machine's or your home's electrical system, which can lead not only to expensive repairs but also to a short circuit. Let's explore the causes of this error.

Decoding the code

A more complete explanation of the PF code for LG washing machines is: power failure on the control module. This failure may be caused by:

• short-term power outage while the machine is running;
• a power surge in your home's electrical network, a voltage drop of 10% or a rise of 5% is enough;
• connecting an electrical appliance to the home's electrical system that could cause a power surge, such as a welding machine.

If the error only occurred once and hasn't recurred, a sudden power outage is likely the culprit. You can ignore it and continue washing by pressing the Start button.

Symptoms and their causes

However, electrical problems in the home are not the only thing that can trigger this error. To understand the reason for the code's appearance PF needs to pay attention to the accompanying symptoms that appear during the operation of the washing machine. First of all, pay attention to when this code appears, for example:

• the error occurs when executing the same program;
• The code is displayed during each wash, regardless of the program.

Both options indicate a malfunction. In addition to the electrical wiring to which the appliance is connected, the following may also fail:

1. the power cord or plug of the washing machine, while a failure can occur during any program and at any stage of the wash cycle;
2. control module, in this case the error also occurs regardless of the program;
3. wiring inside the car from the FPS to the electronic module;
4. The heating element most often malfunctions during the wash cycle. It may seem strange, but when the heating element burns out, it shorts out to the machine's frame. And if you have a residual-current circuit breaker, it trips. After turning the machine back on, the PF code appears on the display.

Important! You can prevent power surges, thereby protecting your washing machine's components, by connecting the machine to the power grid through a voltage stabilizer.

What to do in case of malfunction

Where should I begin checking if this error occurs? In our opinion, the best place to start is by inspecting the power cord and outlet. If the power cord appears to be intact, then check it with a multimeter. As for the outlet, it should be grounded and is brought out separately for the washing machine.

As a reminder, do not connect your washing machine to the power outlet through extension cords or multiple sockets.

You should also check the electrical voltage. If you're unsure of your abilities, entrust electrical work to a qualified electrician—safety first. The next step should be checking the components inside the washing machine. Start with the interference filter. To do this, follow these steps:

• unplug the machine;
• After unscrewing the screws, remove the top cover;
• Just behind the back wall, at the top, at the end of the power cord, find the FPS;
  
• disconnect it and inspect the contacts;
• check the FPS and the leash from the filter to the control module using a multimeter;
• In case of malfunction, replace damaged wires.

If the filter isn't the issue, the next step is to check the heating element. The heating element in LG washing machines is located under the drum at the back. Therefore, after removing the back panel of the machine, you need to:

1. unscrew the central bolt on the heater;
2. disconnect the terminals with wires;
3. check the operation of the heating element with a multimeter;
4. If there is a malfunction, use a rocking motion to remove the heater from its seat;
5. clean the area under the heating element, removing all debris;
6. install a new original part;
7. connect the wires;
8. assemble the car.

The most difficult part to repair is the control module, as it requires knowledge and skills in the work. With such an error, the module most often needs to be repaired and this part is very rarely replaced. The repair involves finding the burned-out traces and components and re-soldering them. While this isn't difficult for a specialist, it can be overwhelming for a novice, potentially ruining the board entirely. So think carefully before attempting this type of repair.

So, the PF error is primarily electrical. It could be a fault in the house's electrical system or in the washing machine itself. We hope this information will help you determine a course of action in this situation.

   

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