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Kenmore Refrigerator ER 1F Error Code: Freezer Sensor Fault

Quick Answer

Kenmore refrigerator ER 1F means the freezer defrost temperature sensor has failed. The sensor measures the temperature at the evaporator coil to determine when to stop defrost cycles. A failed sensor prevents proper defrost, leading to ice buildup and eventual cooling loss.

The sensor measures the temperature at the evaporator coil to determine when to stop defrost cycles. A failed sensor prevents proper defrost, leading to ice buildup and eventual cooling loss. The sensor is located on the evaporator coils in the back wall of the freezer, behind a cover panel. Test with a multimeter: at room temperature the sensor should read approximately 5k-10k ohms. Replacement sensors cost $10-20 and are user-replaceable.

KenmoreRefrigeratorSeverity: highDifficulty: intermediate80% DIY Success
Time to Fix
30–90 min
Difficulty
intermediate
Parts Cost
$10 – $20
Tools Needed
Phillips screwdriver, Multimeter
Wrong code?

Not seeing ER 1F on your display?

Select what your appliance is actually doing and we'll take you to the right guide.

freezer sensor fault
Lg1F

What Does the ER 1F Code Mean?

ER 1F means the Kenmore 795 freezer defrost sensor has failed. Access the sensor through the back panel of the freezer, test with a multimeter, and replace if out of spec.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Defrost temperature sensor failed (open or shorted thermistor)40%
Wiring harness to the sensor damaged or disconnected24%
Physical damage to sensor from ice buildup22%
Main control board failed and sending incorrect signals14%

Symptoms You May Notice

  • ER 1F displayed on front control panel
  • Freezer temperature rising despite compressor running
  • Ice buildup on back wall of freezer
  • Defrost cycle running continuously or not at all
  • Food in freezer thawing unexpectedly

Can you reset a Kenmore refrigerator to clear the ER 1F code?

Unplug the appliance for 60 seconds, then reconnect power to clear stored error codes.

Tools Required for Diagnosis

Phillips screwdriverMultimeterPutty knife or panel removal tool

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Unplug the refrigerator

Unplug the refrigerator. Empty the freezer and remove the back interior panel (typically 4-6 screws) to access the evaporator coils.

2

Locate the defrost temperature sensor clipped to the evaporator coil

3

Disconnect the sensor wire harness connector

4

Test sensor resistance at room temperature

5

If the sensor tests failed, replace it

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Kenmore / LG freezer defrost sensor6615JB2002A · $10–$20

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $15 (Parts) vs $1000 (New Machine)

Frequently Asked Questions

Can I clear ER 1F on a Kenmore 795 by unplugging the refrigerator?
Unplugging will clear the error display temporarily, but ER 1F will return the next time the control board reads the sensor and detects the fault. The only permanent fix is to replace the failed sensor.
How much does it cost to replace the ER 1F sensor on a Kenmore 795?
The defrost temperature sensor costs $10-20 for an OEM or compatible part. If you do the repair yourself, total cost is under $25. A technician call adds $100-200 in labor, making this a worthwhile DIY repair.
Is ER 1F dangerous or will food spoil quickly?
ER 1F is a high-severity code because the defrost system is compromised. Ice will build up on the evaporator coil over several days and eventually block airflow, causing the freezer and refrigerator to lose cooling entirely. Repair within a few days to prevent food loss.
The ER 1F sensor tests fine with a multimeter but the code keeps coming back. What else could it be?
If the sensor tests within spec, check the wiring harness from the sensor to the control board for any cuts, pinches, or corroded connectors. If the wiring is intact, the control board's sensor input circuit may have failed and the board will need replacement.
Is ER 1F the same as LG error code 1F?
Yes. The Kenmore 795 series uses identical components and control software to LG refrigerators. ER 1F and LG 1F refer to the same sensor (part number 6615JB2002A or equivalent) and the same repair procedure.

Related Kenmore Refrigerator Error Codes

Code: HUBKenmore Refrigerator Error Codes: 795 Series (LG Platform) GuideCode: ER RFKenmore Refrigerator ER RF Error Code: Refrigerator Compartment Sensor Fault

Same Fix on Other Brands

Lg refrigerator1F: LG Refrigerator 1F Error Code

Models Known to Experience ER 1F Errors

This repair applies to most Kenmore refrigerators with this error code. Common model numbers include:

795.72483, 795.72057, 795.51833

Last verified for technical accuracy on March 14, 2026