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 completely unplugged from the wall outlet.
- Begin by replacing the main control board located on the rear of the unit, following the procedure for the ‘D7 ILLUMINATED’ error.
- After the main board is replaced, move to the freezer section and remove any shelving and the rear interior panel to access the evaporator coils.
- The defrost sensor (bimetal thermostat) is a small disc-shaped part clipped directly onto the evaporator tubing.
- Unclip the old sensor and disconnect its wire plug and confirm the error stays cleared during a full test cycle.
- Clip the new sensor securely onto the evaporator tube in the same location and reconnect the wiring.
- Reinstall the freezer panel and shelving, secure the main board’s rear access panel, and restore power.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Amana Refrigerator
Focused repair path: refrigerator door, airflow, thermistor, defrost, fan, compressor start, and control checks. Do not treat a returning fault as a reset-only problem; use the point in the cycle where the fault appears to choose the next check.
- Confirm the doors seal, the interior lights shut off, and vents are not blocked before replacing sensors or boards.
- Look for frost pattern clues, stalled fans, warm compartments, water or ice symptoms, and recent power interruptions.
- For temperature faults, inspect the evaporator fan, thermistor, defrost path, damper, condenser airflow, and board connectors.
- Use the complete Amana refrigerator model number before ordering sensors, fans, boards, dampers, valves, or start components.
Check, inspect, clean, test, measure, remove, reconnect, clear, and replace parts only when the symptom supports that path. If these checks point toward a part, verify the complete Amana model number from the appliance tag before ordering. Similar error wording can use different valves, sensors, pumps, motors, heaters, locks, switches, fans, or control boards depending on the exact model.
- WPW10384183
When It’s Better to Replace Than Repair
Refrigerator repairs can become costly when sealed-system, control, defrost, fan, or ice-maker issues repeat.
Confirm width, height, depth, door swing, counter-depth needs, water line, and delivery path before ordering.
For repair parts, verify exact fit with the full refrigerator model number before buying; these links are general replacement-appliance shopping options.
- [OK]Water inlet valve, ice maker, or fan failures keep returning
- [OK]Defrost heater, thermostat, or sensor faults stack up
- [OK]Compressor or sealed-system repair is not economical
- [OK]Food-loss risk is becoming a pattern
Recommended Refrigerator Replacement Options
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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Browse all Amana error codes: Amana Error Codes










