GE Refrigerator Error Code IS: Ice Maker Sensor Fault
Complete troubleshooting guide for GE refrigerator IS error code - ice maker temperature sensor malfunction
Technical Diagram
Expert Diagnosis
The IS error indicates the ice maker temperature sensor is providing incorrect readings or has failed. This sensor monitors ice maker temperature to control ice production cycles. A faulty sensor can cause the ice maker to stop producing ice or produce ice continuously.
What This Error Means
The IS error code on your GE refrigerator indicates an Ice Maker Sensor Fault. This means the temperature sensor that monitors the ice maker is malfunctioning. The ice maker will not produce ice properly until the sensor is repaired or replaced.
Common Causes
Faulty Ice Maker Sensor
The thermistor sensor in the ice maker has failed and is sending incorrect readings
Damaged Sensor Wiring
Wires connecting the sensor to the ice maker control are broken or corroded
Loose Connections
Sensor connector is not properly seated or has poor electrical contact
Ice Maker Control Module Failure
The ice maker control board is not reading the sensor signal correctly
Sensor Displacement
The sensor has moved from its proper position and is not reading accurate temperature
Step-by-Step Solutions
Step 1: Power Reset
- Unplug the refrigerator from the outlet
- Wait 5 minutes to reset the ice maker control
- Plug back in and check if error clears
- Test ice maker operation after reset
Step 2: Check Ice Maker Operation
- Verify ice maker is turned on
- Check that ice maker arm is in down position
- Ensure water supply is connected and valve is open
- Look for any ice blockages in ice maker
Step 3: Inspect Sensor Connections
- Unplug refrigerator for safety
- Access the ice maker assembly
- Locate the temperature sensor (small probe in ice maker)
- Check that connector is firmly attached
- Look for any visible damage to wires
Step 4: Test Ice Maker Sensor
- Disconnect the sensor from the ice maker control
- Use a multimeter set to resistance (ohms)
- Test sensor resistance at freezer temperature
- Compare reading to specifications (typically 5-20k ohms at 0°F)
- Replace sensor if reading is infinite, zero, or out of range
Step 5: Professional Service Required
- If sensor tests good but error persists, ice maker control may be faulty
- Ice maker assembly replacement may be needed
- Contact GE authorized service: 1-800-432-2737
- Technician has proper replacement parts and diagnostic tools
Safety Warning
Always unplug the refrigerator before accessing the ice maker components. The ice maker contains moving parts and electrical components. If you're not comfortable with electrical testing, contact a professional technician.
GE Serial Number Decoder & Warranty Check
How to Decode Your GE Serial Number
Format: First 2 characters indicate Month and Year
Month Codes: R=Jan, S=Feb, T=Mar, U=Apr, V=May, W=Jun, X=Jul, Y=Aug, Z=Sep, A=Oct, B=Nov, C=Dec
Year Codes: R=2019, S=2020, T=2021, U=2022, V=2023, W=2024, X=2025, Y=2026
Example: Serial "VW123456" = May 2024 (V=May, W=2024)
Where to Find Your Serial Number
- Inside the refrigerator compartment on the left or right wall
- On the rating plate behind the crisper drawer
- On the back of the refrigerator near the bottom