Whirlpool Dishwasher Medium

Whirlpool Dishwasher Error Code F3 — How to Fix (Wash temperature sensor error)

Fix Whirlpool Dishwasher error code F3. Step-by-step guide to diagnose and resolve the wash temperature sensor error on Whirlpool dishwashers.

⏱️ Time30-60 minutes
📋 DifficultyMedium
🔧 Model(various models)
⚠️ ErrorF3

What Does Error Code F3 Mean?

Error F3 on your Whirlpool Dishwasher means: Error code F3 on your Whirlpool Dishwasher indicates a problem with the wash temperature sensor. This sensor is responsible for monitoring the temperature of the wash water and ensuring it reaches the correct level for the selected cycle. If the sensor fails, the dishwasher may not heat the water properly or may display the F3 error code.

What You'll Need

🔧 Tools

  • Multimeter (digital or analog)
  • Phillips
  • T20 Torx screwdriver

🛒 Parts

  • Wash Temperature Sensor

How to Fix Error F3 — Step by Step

  1. 1

    Step 1: Reset the Dishwasher

    The first step in troubleshooting the F3 error code is to reset the dishwasher. Press and hold the 'Heated Dry' button for 3 seconds, then release it. Next, press and hold the 'Heated Dry' button again for 3 seconds. This will reset the dishwasher's memory and may resolve the issue. Check if the F3 error code has cleared after the reset.

    💡 Pro Tip: If you've recently experienced a power outage, try resetting the dishwasher to see if it resolves the issue.

  2. 2

    Step 2: Check the Wash Temperature Sensor

    Locate the wash temperature sensor, which is usually located at the bottom of the dishwasher or near the heating element. Use a multimeter to measure the resistance of the sensor. The resistance should be around 100-200 ohms. If the resistance is outside this range, the sensor may be faulty.

    💡 Pro Tip: Make sure to consult your dishwasher's user manual for the location of the wash temperature sensor.

  3. 3

    Step 3: Inspect the Sensor Wiring

    Inspect the wiring connected to the wash temperature sensor for any signs of damage or wear. Check for any loose connections or corrosion. If you find any issues, repair or replace the wiring as needed.

    💡 Pro Tip: Use a multimeter to check for any voltage drops or short circuits in the wiring.

  4. 4

    Step 4: Replace the Wash Temperature Sensor

    If the sensor is faulty, replace it with a new one. Make sure to purchase a genuine Whirlpool part or a compatible aftermarket replacement. Follow the manufacturer's instructions for installation and ensure all connections are secure.

    💡 Pro Tip: When installing a new sensor, make sure to calibrate it according to the manufacturer's instructions.

  5. 5

    Step 5: Check the Heating Element

    If the sensor is working properly, the issue may be with the heating element. Check the heating element for any signs of damage or wear. Use a multimeter to measure the resistance of the heating element. The resistance should be around 10-20 ohms. If the resistance is outside this range, the heating element may be faulty.

    💡 Pro Tip: Make sure to consult your dishwasher's user manual for the location of the heating element.

  6. 6

    Step 6: Replace the Heating Element

    If the heating element is faulty, replace it with a new one. Make sure to purchase a genuine Whirlpool part or a compatible aftermarket replacement. Follow the manufacturer's instructions for installation and ensure all connections are secure.

    💡 Pro Tip: When installing a new heating element, make sure to calibrate it according to the manufacturer's instructions.

When to Call a Professional

If you'd rather not risk further damage to the appliance, or if you've tried the above steps and the issue persists, book a service appointment with a certified repair company. This is especially important if your appliance is still under warranty.

Related Whirlpool Dishwasher Error Codes

Error Whirlpool Dishwasher Error Code F1 Error Whirlpool Dishwasher Error Code F6

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