# How to Fix Kenmore Error F35 (Analog Pressure Sensor)
The F35 error code is one of the more common fault codes experienced by Kenmore washer owners, particularly on models with digital control boards. This guide will help you understand the error and walk you through the necessary steps to diagnose and resolve the issue.
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## 1. Explanation: What Does Error F35 Mean?
The F35 error code indicates a malfunction in the **Analog Pressure Sensor** circuit.
**In plain English:** Your washing machine cannot accurately detect or confirm the water level inside the drum. The machine is attempting to fill, but the main control board is not receiving the expected voltage signal from the pressure sensing system, usually resulting in the wash cycle stalling or failing to start.
While the error references the sensor circuit, the component that nearly always needs replacing is the **Pressure Switch** (also sometimes called the Water Level Sensor or Water Level Pressure Transducer).
## 2. Step-by-Step Fix: How to Diagnose F35
**Safety First:** Before attempting any repairs, always **unplug the washing machine** from the power outlet and turn off the water supply lines.
### Step 1: Perform a Hard Reset
Before opening the machine, try clearing the fault memory:
1. Unplug the washer completely.
2. Wait 5–10 minutes (this allows the main control board’s capacitors to drain).
3. Plug the machine back in and attempt to run a short cycle.
If the F35 error immediately reappears, proceed to the physical diagnosis.
### Step 2: Locate the Pressure Switch and Tubing
The Pressure Switch is typically located behind the main control console or top panel of your washer, often near where the water valves are situated.
1. Carefully remove the screws holding the rear panel or the top console in place to gain access to the interior components.
2. Locate the Pressure Switch—it is a small, round or rectangular component with an electrical harness attached to it.
3. A thin rubber or plastic hose will run from the bottom of this switch down to the bottom of the wash tub. This hose traps air pressure as the tub fills with water, which is how the switch measures the level.
### Step 3: Check the Pressure Hose (Most Common Easy Fix)
A clog, kink, or dislodged hose is often the root cause of the F35 error, as it prevents air pressure from reaching the sensor.
1. Inspect the **entire length** of the pressure hose running from the switch to the tub. Ensure it is not pinched, kinked, or cracked.
2. If the hose looks intact, disconnect the hose from the Pressure Switch (carefully).
3. Blow forcefully into the hose. You should hear air bubbling into the wash drum (if there is water inside) or feel a clear path down to the tub.
4. If you cannot blow air through, the hose or the air trap port on the tub is clogged (often with residue, soap scum, or foreign objects). Clear the blockage using a small wire or by gently blowing pressurized air through it.
### Step 4: Check Wiring and Connectors
1. With the Pressure Switch located, inspect the electrical harness connecting it to the main control board.
2. Ensure the harness is secure and that the wires are not frayed, melted, or disconnected.
3. Look for signs of corrosion or moisture on the switch’s electrical terminals. If present, clean them with electrical contact cleaner and reseat the connector firmly.
### Step 5: Replace the Pressure Switch
If the hose is clear and the wiring connections are solid, the Pressure Switch itself has failed and is providing an inaccurate or non-existent signal to the control board.
1. Note the orientation of the switch and the placement of the electrical connector and the pressure hose.
2. Disconnect the electrical harness and the pressure hose from the faulty switch.
3. Remove the old switch (it may be held in place by a single screw or a plastic clip).
4. Install the new Pressure Switch, reconnect the hose, and firmly attach the electrical harness.
5. Reassemble the washer and test a full wash cycle.
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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