Kenmore Refrigerator Error ER-FS
⚡ Quick Answer: The Kenmore refrigerator ER-FS error indicates a failure in the freezer temperature sensor, leading to improper cooling and unstable temperatures in t... ⚠️ Difficulty Varies
What Does Error ER-FS Mean?
The Kenmore refrigerator ER-FS error indicates a failure in the freezer temperature sensor, leading to improper cooling and unstable temperatures in the freezer compartment. This error can prevent the freezer from reaching or maintaining the desired cold temperature, which may affect food preservation.
Common Symptoms:
- Error code "Er FS" displayed on control panel
- Freezer temperature may not regulate properly
- Freezer compartment may not reach or maintain desired cold temperature
Possible Causes
- Freezer temperature sensor (thermistor) failure (medium)
- Loose or damaged wiring/connectors between freezer sensor and control board (medium)
How to Fix Error ER-FS
DIY Fix Basic Checks for Er FS
- Ensure the refrigerator is powered on and stable
- Observe whether freezer compartment is maintaining temperature
- Check for error code display consistency (persistent vs intermittent)
Technician Only Diagnose and Repair Freezer Sensor Circuit
- Unplug refrigerator from power
- Locate freezer temperature sensor (thermistor) inside freezer compartment, typically on evaporator or rear wall
- Visually inspect wiring harness and connectors for damage or loose connections
- Test sensor resistance with a multimeter and compare to expected values for the model
- Replace faulty thermistor if out of specification
- Repair or replace damaged wiring/connectors as needed
- Verify communication to main control board and clear error code
Parts needed: Freezer temperature sensor (thermistor), Wiring harness/connectors, Possibly main control board if diagnostics indicate
- If you are not comfortable accessing internal components or using multimeter tools
- If replacing sensor and wiring does not clear the error
- If there are signs of control board failure or additional error codes
Next step
Choose the next step for ER-FS
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Refrigerator parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Refrigerator Condenser Coil Brush
For routine cleaning of accessible condenser areas where the manufacturer permits it. It does not repair a sealed-system or compressor fault.
Model-Compatible Refrigerator Water Filter
A routine replacement item on models with a water filter. Match the complete appliance model and existing filter number before ordering.
Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | |
|---|---|
| component | Freezer Temperature Sensor |
| resistance | 10k ohms at room temperature |
| part_number | W10664827 |
| voltage_rating | 120V AC |
Common Questions
What does ER-FS error mean on kenmore refrigerator?
ER-FS indicates a failure in the freezer temperature sensor, resulting in poor temperature regulation.
Can I fix kenmore refrigerator ER-FS error myself?
Yes, you can check for power and temperature consistency, but internal repairs may require a technician.
How much does it cost to fix ER-FS error?
Repair costs range from $50 to $200 for parts, with additional technician labor.
When should I call a technician for ER-FS?
Call a technician if you're unsure about repairs, or if the error persists after replacing the sensor.
Data last verified: 2026-07-25
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