⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: D7 AND D9 ILLUMINATED Difficulty: Hard
Problem: Main board and defrost sensor issue.
How to Fix D7 AND D9 ILLUMINATED Error (Step-by-Step)
- Ensure the refrigerator is unplugged from the power source and confirm the error stays cleared during a full test cycle.
- Replace the main control board, which is found on the back of the refrigerator behind an access panel.
- Carefully transfer all wire connections from the old board to the new one.
- Locate the defrost sensor, which is clipped to the evaporator coils in the freezer section. This will require removing the back panel inside the freezer.
- Disconnect the old defrost sensor and unclip it from the evaporator coil.
- Clip the new defrost sensor in the same location and reconnect its wiring.
- Reinstall the freezer panel and the main control board access panel, then restore power to the refrigerator.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Replacement Part
Verified Compatible Alternatives:
- Main Control Board
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Most DIY parts are $50–$250. If you have a quote, use the total.
More options (for a better recommendation)
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Amana error codes: Amana Error Codes
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