Error Code: Washer Difficulty: Moderate
Problem: Motor Control Unit (MCU) Heat Sink Overheat
How to Fix Washer Error
- Unplug the washer from power source.
- Remove the dispenser drawer completely to access the inlet valve area.
- Turn off both hot and cold water supply valves at the wall.
- Disconnect the water inlet hoses from the back of the washer, having towels ready for spills.
- Remove the top panel by unscrewing the rear mounting screws.
- Locate the water inlet valve assembly at the back of the washer.
- Disconnect the electrical connectors from the valve solenoids.
- Remove the mounting screws securing the inlet valve assembly.
- Inspect the old valve for mineral buildup or damaged solenoids.
- Install the new inlet valve assembly, ensuring all electrical connectors are secure.
- Reconnect water hoses, turn on supply valves slowly, check for leaks, and test fill function.
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Recommended Replacement Part
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
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When It’s Better to Replace Than Repair
Sometimes replacing an appliance makes more financial sense than putting more money into repairs.
Here are a few signs it may be time to shop for a new one:
For repair parts, verify exact fit with the full washer model number before buying; these links are general replacement-appliance shopping options.
- ✓Appliance over 8-10 years old
- ✓Repair cost over 50% of replacement
- ✓Multiple recent breakdowns
- ✓Major component failure
Recommended Replacement Options
Why Upgrade via Amazon?
- Fast, Scheduled Delivery – You pick the date and time
- Expert Installation – Professional setup available for most models
- Old Appliance Haul-away – They’ll take your broken unit when they leave
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Maytag error codes: Maytag Error Codes
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