Problem: Refrigerator sensor open circuit (1 flash pause 2 flashes on control board LED)
How to Fix Refrigerator Error
- Unplug refrigerator and remove rear access panel at top of cabinet to access main control board.
- Locate diagnostic LED on control board (typically red LED near edge connector).
- Count flash pattern: 1 flash, pause, 2 flashes = refrigerator sensor fault.
- Remove interior panels to access refrigerator temperature sensor behind rear wall.
- Disconnect sensor connector and measure resistance at room temperature (77°F/25°C): should read 5kΩ ±5%.
- If resistance is infinite (open circuit), replace sensor WPW
- Inspect wiring harness between sensor and control board for broken wires near door hinge.
- Repair broken wires with waterproof heat-shrink connectors or replace entire harness section.
- After repair, restore power and verify LED stops flashing error code within 2 minutes.
- Monitor refrigerator temperature stabilization within 1 hour of repair.
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Recommended Parts to Check
This page already had a Whirlpool part recommendation. Verify the complete appliance model number before ordering, because part fit can vary by model revision.
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Whirlpool part search: WPW10316348Estimated part range: $28Fit note: Confirm this part against the full Whirlpool refrigerator model number before buying.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
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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