# How to Fix LG Error PS (Power Supply Error)
The LG Error Code “PS” specifically alerts the user to a Power Supply issue. This troubleshooting guide will help you isolate the problem, which often resides in the connection points, particularly the main power cord.
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## 1. Explanation: What LG Error Code “PS” Means
The LG Error Code **PS** stands for **Power Supply**.
This code indicates that the washing machine’s Main Control Board (PCB) is detecting an insufficient or inconsistent voltage supply. In plain English, the machine is not receiving the correct amount of power needed to operate.
While this error can sometimes indicate a failed internal component (like the PCB or a capacitor), the most common causes are external—poor wiring, a bad outlet, or a faulty power cord.
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## 2. Step-by-Step Fix: How to Diagnose the PS Error
Before attempting any internal checks, always begin with the simplest external solutions first.
### Step 1: Perform a Power Reset (The 5-Minute Trick)
The PS code can sometimes be triggered by a temporary voltage spike or fluctuation. A simple power cycle often clears the memory and resets the error.
1. **Unplug:** Disconnect the washing machine’s power cord completely from the wall outlet.
2. **Wait:** Wait a full five (5) minutes to allow all residual power in the machine’s capacitors and control boards to drain completely.
3. **Plug In:** Plug the power cord firmly back into the wall outlet.
4. **Test:** Try running a short cycle. If the error persists, proceed to Step 2.
### Step 2: Check the Power Outlet and Circuit Breaker
Ensure the outlet itself is functioning correctly and delivering the necessary power.
1. **Test the Outlet:** Plug another small appliance (like a lamp or a hair dryer) into the same outlet the washer uses. If the lamp doesn’t light, the issue is with your home wiring or circuit breaker, not the washer itself.
2. **Check the Breaker:** Locate your main electrical panel. Ensure the circuit breaker corresponding to the laundry area has not tripped. If it has tripped, reset it once. If it immediately trips again, **do not proceed** and contact a licensed electrician.
### Step 3: Inspect the Dryer Power Cord for Damage (The Most Likely Culprit)
Because the power cord is frequently bent, pulled, or subjected to vibration, it is the most likely physical failure point leading to the PS error.
***Note: If you are troubleshooting an LG Washer/Dryer combo unit, the cord that services the higher-voltage dryer component is often the source of failure.***
1. **Visual Inspection:** Unplug the machine again. Carefully inspect the entire length of the power cord, looking for:
* Pinches, cuts, or heavy kinks.
* Signs of melting or burning near the plug end or where it enters the machine’s back panel.
* A loose plug where the prongs wobble or appear separated from the main cord sheath.
2. **Terminal Block Check (Advanced/Optional):** If you are comfortable working with electrical components (ensure the machine is UNPLUGGED first), you can remove the small access panel on the back of the washer/dryer where the cord enters.
* **Look for Loose Connections:** Check where the power cord connects to the machine’s internal terminal block. If these screws are loose, it creates resistance, causing voltage drops and triggering the PS error.
* **Tighten:** If necessary, use a screwdriver to firmly tighten the screws on the terminal block, ensuring the wire leads are securely fastened.
### Step 4: If the Error Continues
If you have confirmed that the outlet is working, the breaker is set, and the terminal block connections are tight, the issue is likely a component failure inside the machine.
* **Suspect Component 1:** The **Dryer Power Cord** itself has failed internally and needs replacement.
* **Suspect Component 2:** The Main Control Board (PCB) has failed and is misreading the voltage or has faulty circuitry. This requires replacement by a qualified technician.
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### 3. Call to Action
If your inspection reveals damage, burning, or a loose fit in the power cable, replacing the cord is the safest and most cost-effective first repair step.
**Check the price for a replacement Dryer Power Cord here: https://www.amazon.com/s?k=LG+Dryer+Power+Cord&tag=trivian-20**
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