⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: Refrigerator Difficulty: Hard
Problem: Communication error between user interface board and main control board during power-up sequence
How to Fix Refrigerator Error
- Unplug refrigerator for 15 minutes to reset electronics.
- After reboot, if code returns: remove kickplate grille and locate main control board (rear lower compartment).
- Inspect all wire harness connections – especially J1 (power) and J7 (UI communication) – for loose/corroded pins.
- Disconnect and reconnect each connector 3 times to clean contacts.
- Check continuity of communication wires (typically white/red pair) between UI board WPW10366217 and main board W
- Test UI board output: with multimeter on DC voltage, measure between J7 pins 1-2 while pressing display buttons – should fluctuate 3-5VDC.
- If no signal, replace UI board.
- If signal present but main board doesn’t respond, replace main control board W
- After replacement, MUST program board using model-specific code from serial plate (e.g.,
- via Door Alarm + Freezer Down key sequence.
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.
⚡ Don’t Risk a DIY Fail!
Get the ‘Secret Service Mode’ Cheat Sheet for your Maytag model. Includes an easy-to-read list of every error code and quick diagnostic tips.
✅ Join 15,000+ DIYers • Instant PDF Download
Browse More Codes
📖 View All Error Codes
Most DIY parts are $50–$250. If you have a quote, use the total.
More options (for a better recommendation)
Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →

Leave a Reply