Diy guide: how to test and fix your maytag dishwasher control board

A malfunctioning dishwasher can be a frustrating inconvenience, especially when the culprit is a faulty control board. This crucial component orchestrates the entire operation of your dishwasher, from initiating the wash cycle to dispensing water and detergent. If you suspect that your Maytag dishwasher’s control board is malfunctioning, it’s essential to know how to test it accurately. This comprehensive guide will provide you with step-by-step instructions, troubleshooting tips, and all the necessary information to empower you in diagnosing and resolving the issue.

Understanding the Maytag Dishwasher Control Board

The control board is the electronic brain of your Maytag dishwasher. It receives commands from the user interface (buttons and dials) and translates them into electrical signals that control the various components of the dishwasher, such as the pump, heating element, and drain valve.

Symptoms of a Faulty Maytag Dishwasher Control Board

Several symptoms can indicate a potential issue with your Maytag dishwasher‘s control board. These include:

• Dishwasher not starting or completing a cycle
• Erratic operation (e.g., random beeping, flashing lights)
• Water not draining or filling properly
• Heating element not functioning
• Dispenser not releasing detergent or rinse aid

Safety Precautions

Before beginning any testing or repairs, ensure you have disconnected the dishwasher from the power supply. Failure to do so could result in electrical shock or injury.

Materials Required

• Multimeter (preferably a digital one)
• Screwdriver (Phillips head)

Step-by-Step Testing Procedure

1. Access the Control Board

• Open the dishwasher door and remove the bottom rack.
• Locate the access panel at the bottom of the dishwasher (usually behind the kickplate).
• Unscrew the panel to expose the control board.

2. Visual Inspection

• Once the control board is visible, inspect it for any obvious signs of damage, such as:
• Burn marks
• Scorching
• Broken or loose wires

3. Testing the Power Supply

• Connect the multimeter to the incoming power terminals on the control board (usually labeled “L1” and “L2”).
• Set the multimeter to the AC voltage setting (typically 120V).
• The multimeter should read 120V when the dishwasher is plugged in and turned on.

4. Testing the Output Voltage

• Connect the multimeter to the output terminals on the control board (usually labeled with the component they control, e.g., “Pump,” “Heating Element”).
• Set the multimeter to the DC voltage setting (typically 12V).
• The multimeter should read a voltage when the corresponding component is activated (e.g., when the pump is running).

5. Testing the Sensors

• Disconnect the dishwasher from the water supply.
• Locate the water level sensor (usually a plastic float switch) and the temperature sensor (usually a metal probe).
• Use the multimeter to test for continuity between the sensor terminals.
• The multimeter should beep when the sensors are working correctly.

Troubleshooting Tips

• If the power supply is not reaching the control board, check the wiring and connections between the dishwasher and the power outlet.
• If the output voltage is not present, the control board may be faulty and need to be replaced.
• If the sensors are not working correctly, they may need to be cleaned or replaced.

When to Replace the Control Board

If the testing procedure reveals a faulty control board, it’s recommended to replace it. Attempting to repair a damaged control board can be complex and time-consuming, and it may not always guarantee a successful outcome.

Wrap-Up

Testing a Maytag dishwasher control board is a crucial step in diagnosing and resolving dishwasher malfunctions. By following the comprehensive instructions and troubleshooting tips provided in this guide, you can effectively identify and address issues related to the control board, ensuring your dishwasher operates smoothly and efficiently.

Frequently Asked Questions

1. Can I test the control board without removing it from the dishwasher?

While it’s possible to perform some basic tests without removing the control board, it’s recommended to remove it for a more thorough and accurate diagnosis.

2. What are the common causes of control board failure?

Power surges, water damage, and excessive heat can all contribute to control board failure.

3. How much does it cost to replace a control board?

The cost of a replacement control board can vary depending on the model of your dishwasher. However, it typically ranges from $100 to $300.