Expert Appliance Repair Guide: Understanding GE Dishwasher Control Board Issues and How to Fix Them

Dishwashers are an essential appliance in modern households, and their efficiency largely depends on the control board. The control board of a GE dishwasher acts as its brain, managing its various functions and ensuring that the cleaning process runs smoothly.

However, like all electronic components, the control board is prone to malfunctions, which can impact the dishwasher’s performance. In this article, we will discuss some of the most common GE dishwasher control board problems, their symptoms, causes, and potential solutions.

Symptoms of Control Board Problems

Contents

The control board communicates with the dishwasher’s various components through a series of relays, sensors, and wiring, and when it malfunctions, it can cause several symptoms. The following are some of the most common signs that your GE dishwasher control board might be malfunctioning:

The dishwasher does not start.
The dishwasher does not fill with water.
The dishwasher does not drain properly.
The dishwasher shows error codes on the display.
The dishwasher’s lights blink randomly.
The dishwasher’s cycle times are longer than usual.

Causes of Control Board Problems

Several factors can cause GE dishwasher control board problems, some of which include:

Power Surges: Power surges can damage the control board’s circuits and relays, resulting in malfunctioning or complete failure.
Moisture: Dishwashers operate in a humid environment, and if moisture gets into the control board, it can cause short circuits and damage.
Faulty Wiring: In some cases, the wiring between the control board and other dishwasher components can be faulty, leading to control board malfunction.
Manufacturing Defects: Occasionally, some GE dishwashers may have manufacturing defects that can cause control board problems.

Troubleshooting Control Board Problems

Some control board problems can be easily resolved with simple solutions. Here are some troubleshooting techniques to consider before calling in a professional:

Check the power supply: Ensure that the dishwasher is receiving power by checking the power supply and the electrical outlet.
Reset the dishwasher: Try resetting the dishwasher by unplugging it from the power source for a few minutes and then plugging it back in.
Clean the control board: Remove the control board and check for any moisture, corrosion, or damage. Clean it and reconnect all wires and components.

If the above techniques do not resolve the issue, then it’s best to call in a professional technician who can assess the problem and repair or replace the control board.

Repairing or Replacing the Control Board

If the control board is damaged beyond repair, it will need to be replaced. However, in some cases, repairing the control board may be more cost-effective than replacing it. Here are some factors to consider when deciding whether to repair or replace the control board:

Age of the Dishwasher: If your dishwasher is more than ten years old, it may be more cost-effective to replace it entirely.
Cost: The cost of repairing the control board versus replacing it should be considered when making a decision.
The Availability of Parts: In some cases, the control board may no longer be available, which may mean replacing the dishwasher.
Use the dishwasher properly: Ensure that the dishwasher is not overloaded, and avoid washing items that can damage the dishwasher, such as plastics or items with food particles.
Regular maintenance: Regularly cleaning the dishwasher, including its spray arms, filters, and other components, can prevent blockages and ensure that the dishwasher operates efficiently.

GE Dishwasher Error Codes

Error codes on a GE dishwasher control board are designed to help diagnose issues with the dishwasher. These codes are shown on the dishwasher’s display and can indicate various problems with the appliance. Here are some of the most common GE dishwasher control board error codes and their meanings:

Error Code	Meaning
1h	Heater issue
2h	Water temperature too high
3h	Water temperature too low
4h	Drain pump issue
5h	Wash pump issue
6h	Sensor failure
7h	Turbidity sensor issue
8h	Dishwasher door switch issue
9h	Motor issue

1h: This error code indicates a problem with the dishwasher’s heater. This could be due to a malfunctioning heater, a broken thermostat, or a problem with the control board.
2h: The 2h error code means that the water temperature in the dishwasher is too high. This could be caused by a faulty temperature sensor or a problem with the control board.
3h: The 3h error code means that the water temperature in the dishwasher is too low. This could be due to a malfunctioning temperature sensor or a problem with the control board.
4h: This error code indicates a problem with the dishwasher’s drain pump. This could be due to a clogged or damaged drain pump, a broken impeller, or a problem with the control board.
5h: The 5h error code indicates a problem with the dishwasher’s wash pump. This could be due to a clogged or damaged wash pump, a broken impeller, or a problem with the control board.
6h: This error code indicates a sensor failure. This could be due to a malfunctioning sensor or a problem with the control board.
7h: The 7h error code indicates a problem with the turbidity sensor. This sensor is responsible for measuring the level of soil in the water. This could be due to a malfunctioning sensor or a problem with the control board.
8h: The 8h error code means that there is an issue with the dishwasher door switch. This could be due to a faulty door switch, a broken latch, or a problem with the control board.
9h: The 9h error code indicates a problem with the dishwasher’s motor. This could be due to a faulty motor, a broken impeller, or a problem with the control board.

In summary, understanding the meaning of error codes on your GE dishwasher control board can help you diagnose issues with your appliance. If you experience any of these error codes, it’s best to consult the dishwasher’s user manual or call a professional for further assistance.

Service Table

Here’s a service table for GE dishwasher control board problems:

Issue	Cause	Solution
Dishwasher does not start	Power supply issue, control board failure	Check the power supply and electrical outlet, reset the dishwasher, repair or replace the control board
Dishwasher does not fill with water	Water supply issue, control board failure	Check the water supply, check the inlet valve, repair or replace the control board
Dishwasher does not drain properly	Drain pump issue, clogged drain, control board failure	Check the drain pump and hose, clean the drain, repair or replace the control board
Error codes on the display	Control board failure, sensor failure, motor issue	Consult the user manual for error code meanings, repair or replace the control board, check sensors and motor
Blinking lights on the control board	Control board failure, sensor failure	Check the user manual for light patterns and meanings, repair or replace the control board, check sensors
Long cycle times	Control board failure, sensor issue	Check sensors and their connections, repair or replace the control board

The above service table summarizes some of the most common issues with GE dishwasher control boards and their possible causes and solutions. If you experience any issues with your dishwasher’s control board, it’s always best to consult the user manual or call a professional for assistance. Proper maintenance and care of your GE dishwasher can also prevent most control board issues, so be sure to follow the manufacturer’s instructions and regularly clean and maintain the appliance.

Step by Step instruction How to Fix

Dishwasher does not start

Here are some step-by-step instructions on how to fix a dishwasher that does not start:

Check the power supply: Before you do anything, make sure that the dishwasher is receiving power. Check the power supply and the electrical outlet to ensure that they are both working properly. If there is no power, check the circuit breaker or fuse box to see if a breaker has tripped or a fuse has blown.
Check the control board: If the dishwasher is receiving power but still does not start, the control board may be the issue. Open the dishwasher door and remove the front panel. Locate the control board, which is usually located at the top of the door or the bottom of the dishwasher. Check for any visible damage or signs of burning, such as a burnt-out fuse.
Test the control board: Use a multimeter to test the control board for continuity. Set the multimeter to the ohms setting and place one probe on the control board’s power input and the other probe on the output. If there is no continuity, the control board is likely the issue.
Repair or replace the control board: If the control board is the issue, you can either repair or replace it. If you have experience with electronics, you can attempt to repair the board yourself by replacing any damaged components or fuses. Otherwise, it’s best to replace the entire control board.
Test the dishwasher: Once you have repaired or replaced the control board, reassemble the dishwasher and test it to ensure that it is functioning properly. Run a short cycle to make sure that the dishwasher starts and completes the cycle without any issues.

Dishwasher does not fill with water

Step-by-step instructions on how to fix a dishwasher that does not fill with water:

Check the water supply: The first step is to check the water supply to the dishwasher. Ensure that the water supply is turned on, and there are no kinks or blockages in the water supply hose.
Check the inlet valve: The inlet valve is responsible for allowing water to flow into the dishwasher. Check the valve to ensure that it is not clogged or damaged. If the valve is clogged, clean it using a soft brush and some water. If the valve is damaged, it will need to be replaced.
Check the float switch: The float switch is responsible for controlling the water level in the dishwasher. If the switch is stuck in the up position, it can prevent water from entering the dishwasher. Check the float switch and ensure that it moves up and down freely.
Check the control board: The control board is responsible for sending signals to the inlet valve to open and close. If the control board is malfunctioning, it can prevent the valve from opening. Check the control board for any visible damage or signs of burning.
Test the inlet valve: You can test the inlet valve using a multimeter. Set the multimeter to the ohms setting and place one probe on each of the valve’s terminals. If there is no continuity, the valve is likely the issue and needs to be replaced.
Repair or replace the faulty component: Once you have identified the faulty component, repair or replace it as necessary. If you are unsure of how to repair or replace the component, it’s best to call in a professional technician to assist you.
Test the dishwasher: Once you have repaired or replaced the faulty component, reassemble the dishwasher and test it to ensure that it is functioning properly. Run a short cycle to make sure that the dishwasher is filling with water and completing the cycle without any issues.

Dishwasher does not drain properly

Here are some step-by-step instructions on how to fix a dishwasher that does not drain properly:

Check the drain hose: The first step is to check the drain hose for any kinks, blockages, or damage. If the hose is kinked, straighten it out to allow water to flow freely. If the hose is clogged, remove the blockage using a wire hanger or a drain cleaner. If the hose is damaged, it will need to be replaced.
Check the drain pump: The drain pump is responsible for removing the water from the dishwasher. If the pump is clogged or damaged, it can prevent water from draining properly. Locate the drain pump and check it for any visible damage or signs of wear. Clean the pump and remove any debris or blockages that may be present.
Test the drain pump: You can test the drain pump using a multimeter. Set the multimeter to the ohms setting and place one probe on each of the pump’s terminals. If there is no continuity, the pump is likely the issue and needs to be replaced.
Check the check valve: The check valve prevents water from flowing back into the dishwasher. If the check valve is stuck or clogged, it can prevent water from draining properly. Check the valve and clean it if necessary.
Check the control board: The control board sends signals to the drain pump to turn on and off. If the control board is malfunctioning, it can prevent the pump from turning on. Check the control board for any visible damage or signs of burning.
Repair or replace the faulty component: Once you have identified the faulty component, repair or replace it as necessary. If you are unsure of how to repair or replace the component, it’s best to call in a professional technician to assist you.
Test the dishwasher: Once you have repaired or replaced the faulty component, reassemble the dishwasher and test it to ensure that it is functioning properly. Run a short cycle to make sure that the dishwasher is draining properly and completing the cycle without any issues.

Error codes on the display

Instructions on how to fix error codes on the display of your GE dishwasher:

Consult the user manual: The first step is to consult the user manual for your GE dishwasher to identify the meaning of the error code. The manual will have a list of error codes and their meanings, which can help you identify the problem.
Check the sensors: Error codes can be caused by a malfunctioning sensor. Check the sensors and their connections to ensure that they are working properly. Clean any dirty sensors using a soft cloth and check for any visible damage or signs of wear.
Check the control board: The control board is responsible for sending signals to the various components of the dishwasher. If the control board is malfunctioning, it can cause error codes to appear. Check the control board for any visible damage or signs of burning.
Repair or replace the faulty component: Once you have identified the faulty component, repair or replace it as necessary. If you are unsure of how to repair or replace the component, it’s best to call in a professional technician to assist you.
Reset the dishwasher: Some error codes can be cleared by resetting the dishwasher. Turn off the power supply to the dishwasher for a few minutes and then turn it back on. This will reset the control board and clear any error codes that may have been present.
Test the dishwasher: Once you have repaired or replaced the faulty component, reassemble the dishwasher and test it to ensure that it is functioning properly. Run a short cycle to make sure that the dishwasher is not displaying any error codes and completing the cycle without any issues.

Blinking lights on the control board

Step-by-step instructions on how to fix blinking lights on the control board of your GE dishwasher:

Consult the user manual: The first step is to consult the user manual for your GE dishwasher to identify the meaning of the blinking lights. The manual will have a list of light patterns and their meanings, which can help you identify the problem.
Check the sensors: Blinking lights can be caused by a malfunctioning sensor. Check the sensors and their connections to ensure that they are working properly. Clean any dirty sensors using a soft cloth and check for any visible damage or signs of wear.
Check the control board: The control board is responsible for sending signals to the various components of the dishwasher. If the control board is malfunctioning, it can cause the lights to blink. Check the control board for any visible damage or signs of burning.
Repair or replace the faulty component: Once you have identified the faulty component, repair or replace it as necessary. If you are unsure of how to repair or replace the component, it’s best to call in a professional technician to assist you.
Reset the dishwasher: Some blinking light issues can be cleared by resetting the dishwasher. Turn off the power supply to the dishwasher for a few minutes and then turn it back on. This will reset the control board and clear any blinking light issues that may have been present.
Test the dishwasher: Once you have repaired or replaced the faulty component, reassemble the dishwasher and test it to ensure that it is functioning properly. Run a short cycle to make sure that the dishwasher is not displaying any blinking lights and completing the cycle without any issues.

Long cycle times

Instructions on how to fix long cycle times on your GE dishwasher:

Check the sensors: Long cycle times can be caused by a malfunctioning sensor. Check the sensors and their connections to ensure that they are working properly. Clean any dirty sensors using a soft cloth and check for any visible damage or signs of wear.
Check the control board: The control board is responsible for sending signals to the various components of the dishwasher. If the control board is malfunctioning, it can cause the dishwasher to run longer than usual. Check the control board for any visible damage or signs of burning.
Check the water temperature: The water temperature can affect the dishwasher’s cycle time. Ensure that the water temperature is hot enough to properly clean the dishes. Check the water heater and adjust the temperature as necessary.
Check the detergent: Using the wrong detergent or too much detergent can cause long cycle times. Use only the recommended amount of detergent and ensure that it is the correct type for your dishwasher.
Check the spray arms: Clogged or damaged spray arms can cause long cycle times. Remove the spray arms and clean them using a soft brush and some water. Replace any damaged spray arms.
Repair or replace the faulty component: Once you have identified the faulty component, repair or replace it as necessary. If you are unsure of how to repair or replace the component, it’s best to call in a professional technician to assist you.
Test the dishwasher: Once you have repaired or replaced the faulty component, reassemble the dishwasher and test it to ensure that it is functioning properly. Run a short cycle to make sure that the dishwasher is not running longer than usual and completing the cycle without any issues.

FAQs

What is a control board, and what does it do in a GE dishwasher?

The control board is the main electronic component of a GE dishwasher. It is responsible for controlling the various functions of the dishwasher, including the motor, sensors, and valves. When the control board fails or malfunctions, it can cause a variety of issues with the dishwasher, such as error codes, blinking lights, or failure to start.

How do I know if the control board is the problem?

If your GE dishwasher is displaying error codes, blinking lights, or not starting, the control board may be the issue. To confirm this, you can check the control board for any visible damage or signs of burning, and test it using a multimeter. If the control board has no continuity or is otherwise malfunctioning, it may need to be repaired or replaced.

Can I fix the control board myself, or do I need to call a professional?

If you have experience with electronics and are comfortable working with appliances, you may be able to repair or replace the control board yourself. However, if you are unsure of how to do this or do not feel confident in your abilities, it's best to call a professional technician to assist you.

How can I prevent control board problems in my GE dishwasher?

Proper maintenance and care of your GE dishwasher can prevent most control board issues. Regularly clean and maintain the dishwasher, follow the manufacturer's instructions, and only use recommended detergents and other products. Additionally, avoid overloading the dishwasher or using it for anything other than its intended purpose.

Should I repair or replace my GE dishwasher if the control board is malfunctioning?

If the control board is the only issue with your GE dishwasher, it may be more cost-effective to repair or replace the board rather than replacing the entire appliance. However, if your dishwasher is old, has multiple issues, or is no longer under warranty, it may be more practical to replace the entire appliance.

Conclusion

GE dishwasher control board problems can be frustrating, but with proper maintenance and timely repairs, you can avoid most issues. If you experience any symptoms of control board problems, follow the troubleshooting techniques outlined in this article. If the issue persists, seek professional help to avoid further damage to the dishwasher. Remember, proper maintenance and care of your GE dishwasher can extend its life and ensure that it operates efficiently for years to come.

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Charles Woods

Licensed Appliance Repair Expert at Device Answered

Charles Woods is an Licensed Appliance Repair Expert who has been providing top-notch services for many years. With a keen eye for detail and a passion for fixing appliances, Charles has become a household name in the appliance repair industry.

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