Error Code E1
Whirlpool Refrigerator
Severity:What Does This Error Mean?
Whirlpool Error Code E1 indicates a fault with the refrigerator compartment temperature sensor (thermistor). The fridge cannot regulate temperature accurately without it. A power reset sometimes clears transient E1 errors — if it returns, the thermistor needs testing and likely replacement.
Affected Models
- Whirlpool French Door Refrigerator
- Whirlpool Side-by-Side Refrigerator
- Whirlpool Top Mount Refrigerator
Common Causes
- Fridge compartment thermistor failed or reading out of range
- Wiring to the thermistor damaged or disconnected
- Control board fault sending false E1 code
How to Fix It
-
Perform a power reset.
Unplug the fridge for 5 minutes and plug it back in. This clears transient error codes caused by power fluctuations. If Error E1 does not return within 12 hours, no further action is needed.
-
Locate the thermistor.
The fridge compartment thermistor is typically clipped to a shelf support or the interior rear wall inside the fridge section. On most Whirlpool models it is a small sensor with two wires leading to a plastic connector.
-
Inspect the thermistor wiring.
Trace the thermistor wires to their connector and check for broken, pinched, or corroded wires. A loose connector can cause an E1 error even with a functioning thermistor — reseat the connector firmly.
-
Test thermistor resistance.
Disconnect the thermistor connector and test resistance with a multimeter. At 0°C (32°F) most Whirlpool fridge thermistors read approximately 16,000–17,000 ohms. At room temperature (~20°C) the reading is approximately 5,000–10,000 ohms. Check your model's service manual for exact values.
-
Replace the thermistor.
Order a replacement thermistor for your specific Whirlpool model number. Clip the new thermistor in the same location as the original. Power on — Error E1 should clear.
When to Call a Professional
If the thermistor tests fine (resistance within expected range) but E1 persists, the main control board has likely failed. Control board replacement is best handled by a qualified appliance technician.