# How to Fix Kenmore Error PE (Pressure Sensor Error)
The “PE” error code on a Kenmore washing machine indicates a problem with the appliance’s ability to measure or sense the correct water level. This is known as a **Pressure Sensor Error.**
If your machine throws this code, it means the main control board is either receiving an impossible reading from the sensor or is not receiving any reading at all. The machine will often pause the cycle or refuse to fill until the issue is resolved.
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## Explanation: What Does Error PE Mean?
**PE** stands for **Pressure Error.**
The washing machine determines how much water to fill by measuring air pressure in a small tube connected to the bottom of the wash tub. This pressure change is read by the **Pressure Switch** (also sometimes called the Water Level Sensor).
When you see the PE code, it almost always points to one of three issues:
1. **A Clog or blockage** in the air tube that connects the tub to the sensor.
2. **A failure of the Pressure Switch** itself (the most common mechanical cause).
3. **A failure of the main control board** (the least common and most expensive cause).
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## Step-by-Step Fix: Diagnosing and Repairing Error PE
Always unplug the machine from the power outlet before performing any inspections or repairs.
### Step 1: Perform a Power Reset (Basic Troubleshooting)
Sometimes, the code is triggered by a momentary glitch or power fluctuation.
1. Unplug the Kenmore washer from the wall outlet.
2. Wait for at least **5 minutes** to ensure all residual power has drained from the control board.
3. Plug the washer back in and attempt to run a short cycle.
If the PE error immediately reappears, proceed to the physical inspection steps.
### Step 2: Check the Pressure Sensor Hose (The Air Trap)
The hose (or air trap) that connects the tub to the pressure switch must be clear of blockages and properly sealed.
1. **Locate the Pressure Switch:** On most Kenmore top-loaders, the Pressure Switch is located beneath the main console or control panel, near the top of the machine. (You may need to pry up the top lid or remove the rear service panel to access it.)
2. **Inspect the Hose Connections:** Find the small, typically clear or black rubber/plastic tube running from the bottom of the tub up to the pressure switch.
3. **Look for Kinks or Disconnection:** Ensure the hose is securely fastened to the sensor/switch and is not bent, folded, or disconnected anywhere along its path.
4. **Clear Potential Blockages (Clog Check):** If the hose is connected correctly, it may be clogged with residue, soap scum, or foreign debris (like sock lint).
* Gently disconnect the hose from the Pressure Switch (leaving it connected to the tub).
* Blow forcefully through the hose towards the tub. You should hear air bubbling in the tub. If you meet heavy resistance, the hose or the air trap port is clogged.
* Reconnect the hose securely.
### Step 3: Test and Replace the Pressure Switch
If the hose is clear and connected properly, the Pressure Switch itself is the most likely culprit. These switches contain delicate diaphragms that can fail over time, sending incorrect water level signals to the control board.
1. **Access the Switch:** If you haven’t already, fully access the Pressure Switch (usually secured by a single screw or clip).
2. **Remove the Switch:** Note the position of any wiring harnesses and the air hose connection, then remove the faulty switch.
3. **Install the New Switch:** Install the replacement switch, making sure the electrical connector and the air hose are seated firmly and correctly.
4. **Test the Machine:** Plug the washer back in and run a short diagnostic cycle (usually a Quick Wash or Rinse/Spin).
If the machine fills correctly and the error code does not return, the Pressure Switch was the problem.
### Step 4: Inspect the Main Control Board (If Error Persists)
If you have replaced the pressure switch and confirmed the air hose is clear, the problem lies in the Main Control Board (PCB).
The board is responsible for reading the voltage signals sent by the pressure switch. If the board is damaged (often visible as burn marks, blown capacitors, or corroded connections where the pressure switch wire harness connects), it cannot interpret the water level correctly and will throw the PE code.
*Replacement of the main control board is an expensive fix and should only be undertaken after confirming the switch and hose are functional.*
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Check the price for a replacement Pressure Switch here: https://www.amazon.com/s?k=Kenmore+Pressure+Switch&tag=trivian-20