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Why My Washing Machine Overflows and Produces Too Much Foam?

Jul 10, 2023, 18:32pm

It can happen that your washing machine overflows and produces an excessive amount of suds. The checks and tests to be carried out depend on when your washing machine overflows.

If the washing machine fills itself when stopped, you need to replace your solenoid valve.

If it fills up during operation:

  • check the connection and position of the drain hose
  • reduce the detergent dosage and clean the detergent dispenser
  • clean the drain pump filter
  • check the solenoid valve filter
  • test the solenoid valve
  • test the pressure switch

Experiencing an overflowing washing machine accompanied by excessive foam can be a messy and frustrating problem. This issue not only creates a mess but also hampers the proper functioning of your washing machine. There are several potential reasons why a washing machine may overflow and produce excessive foam, and understanding these causes is crucial for finding a solution. In this article, we will explore the common reasons behind a washing machine overflowing and producing too much foam, as well as provide possible solutions to address the problem.

1. Using Too Much Detergent

Using an excessive amount of detergent is one of the primary causes of excessive foam in the washing machine. If you exceed the recommended dosage, the detergent may not dissolve properly, leading to excessive suds and foam. Refer to the manufacturer’s guidelines and use the appropriate amount of detergent for your load size and water hardness. In most cases, using less detergent can help resolve the foam issue.

Why My Washing Machine Overflows and Produces Too Much Foam?2. Using the Wrong Detergent

Using the wrong type of detergent can also contribute to excessive foaming. Certain detergents, such as those designed for hand washing or high-efficiency (HE) machines, produce less foam and are specifically formulated for washing machines. Using a non-HE detergent or one not suitable for machine use can result in excessive suds and foam. Ensure you are using the correct detergent type for your specific machine.

3. Hard Water or Soft Water Issues

Water hardness can affect the foam production in your washing machine. Hard water contains minerals that can react with the detergent, causing more foam to form. On the other hand, soft water can enhance the effectiveness of detergents, leading to increased suds. Consider adjusting the detergent dosage based on the water hardness in your area to control foam production.

4. Clogged or Faulty Water Level Sensor

A clogged or faulty water level sensor can lead to an incorrect detection of water levels in the washing machine. If the sensor fails to detect the proper water level, it can cause the machine to overfill and result in an overflow. Clean the sensor or contact a professional technician to inspect and replace it if necessary.

5. Malfunctioning Pressure Switch

The pressure switch, also known as the water level switch, controls the water intake and signals when to stop filling the machine. If the pressure switch is faulty, it may not signal the machine to stop filling at the appropriate level, leading to an overflow. Consult a professional technician to diagnose and replace the pressure switch if needed.

6. Drainage System Issues

Problems with the drainage system, such as a clogged drain pipe or a blocked drain pump filter, can prevent water from draining properly, causing an overflow. Check the drain pipe for any obstructions and clean the drain pump filter regularly to ensure smooth water flow.

TEST THE WASHING MACHINE SOLENOID VALVE

The solenoid valve is an electric valve that allows water to enter the washing machine. If it is faulty, it is possible that the water does not arrive in the device. To check it, it will be necessary to test its ohmic value.

  • Make sure the washing machine is unplugged for this test.
  • Open your appliance and locate your solenoid valve by following the water inlet pipe: you will usually find it at the back of the washing machine. In some configurations, it will be necessary to undo the hoses of the solenoid valve using pliers to access the lugs.
  • Set your multimeter to 20 or 60 kilo ohms.
  • Position the test probes on the metal connectors of the solenoid valve. Some solenoid valves have two or three ways, you will have to test them all.
  • If you find a numerical value (often between 3 and 5 Kilo ohms) then your solenoid valve is functional. Otherwise, it will need to be changed.

You can also perform a live test to check if your solenoid valve is powered between 220 and 240 volts. For that :

  • Reconnect the valve connector then reconnect your appliance: wear insulated gloves or do not touch any metal part with your fingers.
  • Put the test probes of the multimeter on the metal parts of the connector.
  • You should read a value close to 230-240 volts: if you have zero, it is not powered and you have a problem with the electronic card or pressure switch.

Why My Washing Machine Overflows and Produces Too Much Foam?Troubleshooting Steps

Here are some troubleshooting steps you can take to address a washing machine that overflows and produces excessive foam:

  1. Use the recommended amount of detergent according to the manufacturer’s guidelines.
  2. Ensure you are using the correct detergent type for your washing machine.
  3. Adjust the detergent dosage based on the water hardness in your area.
  4. Clean the water level sensor and, if necessary, replace it.
  5. Consult a professional technician to inspect and replace the pressure switch if it is malfunctioning.
  6. Check the drainage system for any obstructions and clean the drain pump filter regularly.

By following these steps, you can often resolve the issue of a washing machine overflowing and producing excessive foam. Regular maintenance, proper detergent usage, and attention to water levels will help prevent future occurrences.

In conclusion, an overflowing washing machine accompanied by excessive foam can be caused by several factors, including using too much detergent, using the wrong detergent type, water hardness issues, clogged or faulty sensors, and drainage system problems. By understanding these common causes and following the troubleshooting steps mentioned above, you can often identify and address the issue effectively. If the problem persists or if you are unsure about any repairs, it is advisable to consult a professional technician to diagnose and repair the specific problem with your washing machine.

 

“If you’re in Toronto or the Greater Toronto Area and need your washing machine repair and service urgently, contact Shymon Appliance Repair, we know how to fix it!”