Here are several steps you can take to diagnose and potentially fix your Maytag refrigerator's ice maker:

• Water Line: Make sure the water supply line is not kinked or blocked. A restricted water line can prevent the ice maker from receiving enough water to produce ice.
• Water Inlet Valve: The valve that controls water flow to the ice maker might be malfunctioning. You can test the valve by listening for a buzzing sound when the ice maker tries to fill with water. If you don't hear anything, the valve could be defective.

• Most ice makers have a small arm that moves up and down. If the arm is stuck in the “off” or up position, the ice maker won't make ice. Ensure the arm is free to move and set to the “down” or “on” position. [See below if the ice maker arm is stuck]

• Make sure the freezer is set to the proper temperature, ideally between 0°F and 5°F (-18°C and -15°C). If the freezer is too warm, ice won't form.
• Check for any frost buildup that could affect cooling efficiency.

• Ice Maker Module: The motor and gear mechanism that pushes ice out of the tray may have worn out. If you don't hear the ice maker running or cycling, the module may need to be replaced.
• Ejector Blades: These blades push the ice cubes out of the tray. If they are jammed or broken, ice production will stop.
• Thermostat: The ice maker's thermostat, which detects when the ice tray is cold enough, might have failed.

• Some newer Maytag models have a diagnostic mode you can run to troubleshoot. Check your user manual for instructions on how to access it. The test will usually check various ice maker components, like the motor and water valve.

• If you suspect ice buildup in the water line or ice maker tray, turn off the refrigerator and let it defrost for a few hours. Sometimes, ice blockages can form in the unit or water inlet, preventing water from reaching the ice maker.

• If you’ve checked all the above and the ice maker is still not working, the unit itself may be at the end of its life span after 10+ years of use. You can replace the ice maker assembly, which is often more cost-effective than repairing individual components.

If you're comfortable with basic DIY repairs, these steps might help you diagnose the issue. If not, it may be best to contact a professional technician for a detailed inspection.

If the ice maker arm is stuck in one position and won’t move, here are steps to try and free it up:

• Turn off the refrigerator by unplugging it or turning off the circuit breaker for about 5-10 minutes.
• After waiting, plug it back in to see if the ice maker resets and the arm starts to move.

• Inspect the ice maker arm and surrounding areas for any ice buildup or obstruction that might be blocking its movement.
• If you see ice, gently remove the ice with warm water, a soft cloth, or an ice pick. Be careful not to damage the ice maker or any nearby components.

• Turn off the refrigerator and let the freezer and ice maker defrost completely. This may take several hours, but it could help if ice buildup is the issue.
• After defrosting, check if the arm moves freely once the refrigerator is back on.

• Gently try to move the arm yourself. Do not force it, as the mechanism inside can break if too much pressure is applied.
• If the arm moves slightly but feels stuck, it might need lubrication or could be jammed by internal ice that hasn’t melted yet.

• If the arm still doesn’t move after checking for blockages or defrosting, the mechanism inside the ice maker could be faulty. The motor or gear that moves the arm may have worn out over time.
• In this case, you may need to either:
  • Replace the ice maker assembly, or
  • Contact a technician for further inspection.

• Some Maytag ice makers have a reset button or can be reset manually.
• Consult your refrigerator’s manual for the specific reset procedure for your model.