Whirlpool Washing Machine Error Code Sud — How to Fix (Excess suds detected)

Fix Whirlpool Washing Machine error code Sud with our step-by-step guide to diagnose and resolve excess suds detected on Whirlpool washing machines.

⏱️ Time15-30 minutes
📋 DifficultyEasy
🔧 Model(various models)
⚠️ ErrorSud
Whirlpool Washing Machine Error Sud — troubleshooting guide

What Does Error Code Sud Mean?

Error Sud on your Whirlpool Washing Machine means: Error code Sud on your Whirlpool Washing Machine indicates that the machine has detected excess suds during the wash cycle. This can cause the machine to malfunction and may result in poor cleaning performance or even damage to the machine. The error code is usually accompanied by a locked lid and a display showing the Sud error.

What You'll Need

🔧 Tools

  • Phillips
  • T20 Torx screwdriver
  • Multimeter

🛒 Parts

  • pressure switch

How to Fix Error Sud — Step by Step

  1. 1

    Step 1: Check the pressure switch

    The pressure switch is responsible for detecting excess suds in the wash water. To check the sensor, locate it on the rear panel of the machine, near the water inlet. Use a Phillips #2 screwdriver to remove the screw holding the sensor in place. Gently pull the sensor out of its mounting bracket. Use a multimeter to check the resistance of the sensor. The resistance should be around 10-20 kΩ. If the resistance is outside this range, the sensor may be faulty.

    💡 Pro Tip: Make sure to unplug the machine before attempting to remove any components.

  2. 2

    Step 2: Check the Drain Pump Filter

    The drain pump filter can become clogged with debris, causing excess suds to accumulate in the machine. To check the filter, locate it on the bottom panel of the machine, near the drain pump. Use a T20 Torx screwdriver to remove the screw holding the filter in place. Gently pull the filter out of its mounting bracket. Inspect the filter for any blockages. If the filter is clogged, clean it with warm water and mild detergent.

    💡 Pro Tip: Make sure to clean the filter regularly to prevent clogs.

  3. 3

    Step 3: Check the Wash Cycle Settings

    Incorrect wash cycle settings can cause excess suds to accumulate in the machine. To check the wash cycle settings, refer to the user manual or the machine's display. Ensure that the wash cycle is set to the correct setting for the type of laundry being washed.

    💡 Pro Tip: Always refer to the user manual for specific instructions on how to set the wash cycle.

  4. 4

    Step 4: Run a Diagnostic Test

    Run a diagnostic test on the machine to check for any underlying issues. To run a diagnostic test, refer to the user manual or the machine's display. Follow the instructions to run the test. If the test indicates a problem, consult the user manual or contact a professional for assistance.

    💡 Pro Tip: Make sure to run the diagnostic test regularly to prevent issues.

  5. 5

    Step 5: Reset the Machine

    Resetting the machine can resolve issues with excess suds. To reset the machine, unplug it from the power outlet and wait for 30 seconds. Plug the machine back in and press the power button to turn it on. The machine will automatically reset and may resolve the issue.

    💡 Pro Tip: Always unplug the machine before attempting to reset it.

When to Call a Professional

If none of the above steps resolve the issue, get a professional assessment before attempting further repairs. If the machine is still under warranty, contact Whirlpool customer service for assistance. If the machine is no longer under warranty, contact a professional appliance repair technician for assistance.

Diagnostic Flowchart

Follow this visual guide to systematically diagnose Error Sud:

You’re staring at your Whirlpool Washing Machine, and the display is showing the Sud error code. The lid is locked, and you’re worried that your laundry day is ruined. Don’t worry; this error code is relatively common and usually easy to fix. In this comprehensive guide, we’ll walk you through the causes, diagnostic checks, and step-by-step fixes for the Whirlpool Washing Machine error Sud.

What Whirlpool Washing Machine Error Sud Actually Means

The Sud error code on your Whirlpool Washing Machine indicates that the machine has detected excess suds during the wash cycle. This can cause the machine to malfunction and may result in poor cleaning performance or even damage to the machine. The error code is usually accompanied by a locked lid and a display showing the Sud error. The excess suds can be caused by using too much detergent, using the wrong type of detergent, or a clogged drain pump filter.

The pressure switch, a small sensor located inside the machine, is responsible for detecting excess suds. When the pressure switch detects excess suds, it sends a signal to the machine’s control board, which then displays the Sud error code. It’s essential to address this issue promptly to prevent any further damage to the machine.

Initial Diagnostic Steps (use before calling anyone)

Before calling a professional or spending money on repairs, try these quick diagnostic checks:

  • Check the detergent usage: Ensure you’re using the recommended amount and type of detergent for your Whirlpool Washing Machine.
  • Check the drain pump filter: Make sure the filter is clean and not clogged with debris.
  • Power cycle the machine: Unplug the machine, wait for 5-10 minutes, and plug it back in. This can sometimes reset the machine and resolve the issue.
  • Check for blockages: Ensure the drain hose is not kinked or blocked, which can cause suds to build up.

For Whirlpool Washing Machines, a power cycle procedure involves unplugging the machine, waiting for 5-10 minutes, and plugging it back in. This can sometimes reset the machine and resolve the Sud error code.

Most Common Failure Points

Here are the common causes of the Whirlpool Washing Machine error Sud, ranked by likelihood:

1. Excessive Detergent Usage

  • Description: Using too much detergent can cause excess suds to build up during the wash cycle.
  • How to verify: Check the detergent usage and ensure it’s within the recommended range.
  • Fix difficulty: Easy
  • Cost: $0 (just adjust detergent usage)

2. Clogged Drain Pump Filter

  • Description: A clogged drain pump filter can cause debris to accumulate and lead to excess suds.
  • How to verify: Check the drain pump filter and clean or replace it if necessary.
  • Fix difficulty: Medium
  • Cost: $20-$50 (depending on the filter replacement)

3. Incorrect Detergent Type

  • Description: Using the wrong type of detergent can cause excess suds to build up during the wash cycle.
  • How to verify: Check the detergent type and ensure it’s compatible with your Whirlpool Washing Machine.
  • Fix difficulty: Easy
  • Cost: $0 (just switch to the correct detergent)

4. Faulty Pressure Switch

  • Description: A faulty pressure switch can incorrectly detect excess suds and display the Sud error code.
  • How to verify: Test the pressure switch with a multimeter and replace it if necessary.
  • Fix difficulty: Hard
  • Cost: $50-$100 (depending on the pressure switch replacement)

Complete Repair Procedure

The most common cause of the Whirlpool Washing Machine error Sud is excessive detergent usage. Here’s a step-by-step guide to fix this issue:

Safety warning: Always unplug the machine before attempting any repairs.

Tool list: Phillips screwdriver, T20 Torx screwdriver, multimeter (optional)

Time estimate: 10-30 minutes

  1. Check detergent usage: Ensure you’re using the recommended amount and type of detergent for your Whirlpool Washing Machine.
  2. Run a diagnostic test: Run a diagnostic test on the machine to check for any underlying issues.
  3. Reset the machine: Reset the machine by unplugging it, waiting for 5-10 minutes, and plugging it back in.

What “fixed” looks like: The Sud error code disappears, and the machine operates normally.

What “still broken” looks like: The Sud error code persists, and you may need to investigate further or call a professional.

What Differs Between Models

While the Sud error code is common across many Whirlpool Washing Machine models, some models may have specific variations:

  • Whirlpool WTW5000DW: This model has a known issue with the pressure switch, which can cause the Sud error code.
  • Whirlpool WTW87100US: This model has a different drain pump filter design, which may require a specific replacement.

Cost Estimate: Parts & Labor

Here’s a breakdown of the estimated repair costs for the Whirlpool Washing Machine error Sud:

DIY CostParts CostProfessional Labor
$0 (adjust detergent)$20-$50 (filter replacement)$100-$200 (professional labor)

When to fix: If the issue is caused by excessive detergent usage or a clogged drain pump filter, it’s worth fixing yourself. However, if the issue is caused by a faulty pressure switch or other complex issues, it’s recommended to call a professional.

Long-Term Prevention Strategy

To prevent the Whirlpool Washing Machine error Sud from occurring in the future:

  • Regularly clean the drain pump filter: Clean the filter every 1-2 months to prevent debris buildup.
  • Use the correct detergent: Ensure you’re using the recommended type and amount of detergent for your Whirlpool Washing Machine.
  • Run regular diagnostic tests: Run diagnostic tests every 6-12 months to detect any underlying issues.

Red Flags That Mean Call a Repair Service

If you experience any of the following symptoms, it’s recommended to call a professional:

  • The Sud error code persists after trying the above fixes.
  • You notice unusual noises, vibrations, or leaks during operation.
  • You’re unsure about performing repairs or diagnostic tests.

What to expect: A professional technician will diagnose the issue, provide a detailed estimate, and perform the necessary repairs.

Frequently Asked Questions

Q: What causes the Sud error code on my Whirlpool Washing Machine? A: The Sud error code is usually caused by excessive detergent usage, a clogged drain pump filter, or a faulty pressure switch.

Q: How do I reset my Whirlpool Washing Machine? A: Unplug the machine, wait for 5-10 minutes, and plug it back in.

Q: Can I use any detergent with my Whirlpool Washing Machine? A: No, ensure you’re using the recommended type and amount of detergent for your machine.

Q: How often should I clean the drain pump filter? A: Clean the filter every 1-2 months to prevent debris buildup.

Q: Can I fix the Sud error code myself? A: Yes, if the issue is caused by excessive detergent usage or a clogged drain pump filter. However, if the issue is caused by a faulty pressure switch or other complex issues, it’s recommended to call a professional.

For more information on appliance repairs, visit our Bosch Dishwasher Error E01 or Bosch Dishwasher Error E09 guides. If you’re experiencing issues with your LG or Samsung Washing Machine, check out our LG Washing Machine Error IE or Samsung Washing Machine Error PE guides.

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Published: · Updated: · By FixCodePro Team

This guide is for informational purposes only. Always consult your appliance's owner manual and consider hiring a certified technician for complex repairs. FixCodePro guides are AI-assisted and reviewed for accuracy, but appliance models vary — verify part numbers and procedures for your specific model. Learn about our editorial process.