Whirlpool Refrigerator error code
Whirlpool Refrigerator Error ER-18F
UNPLUG refrigerator from electrical power.
UNPLUG refrigerator from electrical power.
Try these first
Start here before buying a part or taking the appliance apart.
- 1UNPLUG refrigerator from electrical power
UNPLUG refrigerator from electrical power.
- 2Locate freezer thermistor
Locate freezer thermistor: typically behind evaporator cover or mounted on freezer wall.
- 3Remove access panel covering evaporator coil (may require
Remove access panel covering evaporator coil (may require removing shelves/baskets).
A quick explanation
What does ER-18F mean?
UNPLUG refrigerator from electrical power.
The answer you came for
How to fix Whirlpool refrigerator error ER-18F
Start with the safest checks and work from simple to technical.
- 1
UNPLUG refrigerator from electrical power
UNPLUG refrigerator from electrical power.
- 2
Locate freezer thermistor
Locate freezer thermistor: typically behind evaporator cover or mounted on freezer wall.
- 3
Remove access panel covering evaporator coil (may require
Remove access panel covering evaporator coil (may require removing shelves/baskets).
- 4
Disconnect thermistor wiring harness
Disconnect thermistor wiring harness. Note routing path before removal.
- 5
Measure resistance across thermistor terminals with multimeter at
Measure resistance across thermistor terminals with multimeter at current freezer temperature. Compare to resistance chart in service manual (e.g., at 0°F/-18°C should be ~17kΩ).
- 6
If reading is infinite, zero, or significantly deviates
If reading is infinite, zero, or significantly deviates from chart, replace thermistor.
- 7
Remove mounting clip/screw securing sensor
Remove mounting clip/screw securing sensor. Gently pull sensor from clip/well.
- 8
Install new thermistor using OEM part W
Install new thermistor using OEM part W
- 9
Secure in mounting clip
Secure in mounting clip. Route wiring away from sharp edges.
- 10
Reconnect harness
Reconnect harness. Reassemble evaporator cover and interior components.
- 11
Restore power
Restore power. Monitor freezer temperature display for 2 hours to confirm accurate readings.
- 12
Whirlpool part search
Whirlpool part search: W10134098 Estimated part range: $22 Fit note: Confirm this part against the full Whirlpool refrigerator model number before buying. Search Amazon for W10134098
Read the additional checks from the current guide
How to Fix Er 18F Error UNPLUG refrigerator from electrical power.Locate freezer thermistor: typically behind evaporator cover or mounted on freezer wall.Remove access panel covering evaporator coil (may require removing shelves/baskets).Disconnect thermistor wiring harness. Note routing path before removal.Measure resistance across thermistor terminals with multimeter at current freezer temperature. Compare to resistance chart in service manual (e.g., at 0°F/-18°C should be ~17kΩ).If reading is infinite, zero, or significantly deviates from chart, replace thermistor.Remove mounting clip/screw securing sensor. Gently pull sensor from clip/well.Install new thermistor using OEM part WSecure in mounting clip. Route wiring away from sharp edges.Reconnect harness. Reassemble evaporator cover and interior components.Restore power. Monitor freezer temperature display for 2 hours to confirm accurate readings. As an Amazon Associate, we earn from qualifying purchases through links on this page. 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. Whirlpool part search: W10134098 Estimated part range: $22 Fit note: Confirm this part against the full Whirlpool refrigerator model number before buying. Search Amazon for W10134098
Recommended part
Recommended part for this error code
No replacement part recommended for this code
The researched guidance for Whirlpool Refrigerator error ER-18F points to user-action and diagnostic steps above rather than a mapped replacement part. We will not invent a part or send you to an unrelated product.
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Repair or replace calculator
Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.
Safety first
Disconnect power before opening panels or touching internal parts.
When to stop
- Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
- Do not perform live-voltage testing unless you are trained and equipped for it.
- Use the exact model manual or service information before replacing electronic controls.
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