The control board in a freestanding or under-counter ice machine acts as the unit’s command center, regulating the ice-making process. If the control board becomes faulty due to age, power surges, or other issues, you don’t need to replace the entire machine. Instead, replacing the damaged board with a new one is a cost-effective solution.
Here’s a step-by-step guide to help you handle the replacement safely and efficiently.
When to Replace the Control Board
You may need to replace the control board if your ice machine:
- Fails to produce ice.
- Experiences intermittent issues.
- Stops responding to commands.
Common Causes of Control Board Failure
Understanding why the control board failed can help prevent future issues. Some common causes include:
- Power Surges: Electrical spikes can damage sensitive components on the board.
- Moisture Exposure: Leaks or condensation can lead to short circuits or corrosion.
- Age-Related Wear: Over time, components on the control board may degrade.
- Improper Maintenance: Accumulated dust, dirt, or debris can interfere with board performance.
- Temperature Extremes: Excessive heat or cold can compromise electronic components.
Tools and Materials You’ll Need
- Replacement Control Board: Check compatibility with your specific ice machine model.
- Phillips Screwdriver
- 1/4-inch Socket
- Putty Knife
Safety First
Working on appliances can be risky without proper safety measures. Follow these guidelines:
- Always disconnect the appliance from its power source or switch off the circuit breaker to avoid electric shock.
- If the appliance was recently in use, allow it to cool down completely before starting.
- Shut off the water at the outlet to prevent leaks. Keep towels nearby to catch any remaining water when removing components.
- Work in a well-lit, clutter-free area. Keep children and pets away from the workspace.
- Avoid using excessive force when removing or reinstalling parts. Take photos of wiring and connections to simplify reassembly.
- Use insulated gloves to protect your hands from sharp edges and avoid direct contact with exposed wires or terminals.
- Refer to your appliance’s manual for specific safety or installation instructions.
Read more: A Step-by-Step Guide to Installing an Ice Maker in Your Kitchen
How to Replace the Ice Machine Control Board
Follow these steps to safely and effectively replace the control board in your ice machine.
Preparation
- Unplug the ice machine from the power outlet.
- Shut off the water supply to the ice machine.
Remove the Access Cover
- Use a 1/4-inch socket to remove the screws securing the access cover to the control panel.
- Carefully pry the access cover off the control panel using a putty knife, avoiding damage to the cover or panel.
Disconnect Wires and Removing Components
- Note the positions of the ice bin thermistor wire connector and the cutting grid wire connector. Take a photo for reference during reassembly.
- Gently disconnect the ice bin thermistor wire connector and the cutting grid wire connector by pulling them apart.
- Remove the cutting grid from the ice machine.
Remove the Control Board
- Remove all screws securing the control housing to the top panel.
- Unscrew the grounding wire from the top panel.
- Remove the Phillips head screw securing the control board in place.
- Depress the tab, if present, to release the control board, and carefully lift it out of the housing.
- Note the positions of all wire connectors on the old control board.
- Disconnect the wire connectors from the old control board by pulling them away.
Install the New Control Board
- Connect the wire connectors to the corresponding terminals on the new control board.
- Snap the new control board into place within the control housing.
- Secure the new control board by threading the mounting screws back into their original positions.
Reassemble the Components
- Reattach the control housing grounding wire to the top panel using the previously removed screw.
- Align the control housing on the top panel and secure it by rethreading all screws.
- Reinstall the cutting grid and reconnect the cutting grid wire connector and the thermistor wire connector to their original positions.
- Secure the top panel by rethreading the front and rear screws.
Reattach the Access Cover and Testing
- Align the access cover with the ice machine so that the ice scoop housing rests on the cover.
- Secure the access cover to the control panel with the screws removed earlier.
- Carefully move the ice machine back to its original position.
- Turn the water supply back on.
- Plug the ice machine back into the power outlet.
- Turn on the ice machine and monitor its operation to verify it is working correctly.
Maintenance Tips to Extend Control Board Life
After replacing the control board, regular maintenance can help prevent future failures:
- Use a Surge Protector: Protect the ice machine from power fluctuations.
- Check for Leaks: Regularly inspect for leaks that could expose the board to moisture.
- Clean the Machine: Remove dust and debris from vents and components periodically.
- Inspect Wiring: Look for frayed or damaged wires that could cause electrical problems.
- Keep the Area Ventilated: Maintain proper airflow around the machine to prevent overheating.
Read more: How to replace the bin thermistor in a Whirlpool ice machine
Final Thoughts
Once you’ve installed the new control board and tested the machine, you’ll appreciate the effort. A few small changes, like protecting it with a surge protector or cleaning it regularly, can keep your ice machine running longer and save you from extra repairs in the future. Sometimes, the simplest fixes can have the biggest impact.