Refrigerator sensor error — fresh food compartment thermistor failure
The E1 error on the Whirlpool WRS325SDHZ indicates refrigerator sensor error — fresh food compartment thermistor failure. This typically occurs due to failed fresh food compartment thermistor. A qualified technician can usually diagnose this in 10–15 min (diagnosis only), but the steps below will help you understand the issue.
Safety Warning
This repair is recommended for certified technicians only. The diagnostic steps below can help you understand the issue before calling for service.
Common Causes of E1
- 1Failed fresh food compartment thermistor
- 2Wiring harness disconnection at the thermistor plug
- 3Control board sensor input channel failure
- 4Moisture damage to the thermistor or its connector
How to Fix E1
- 1
Step 1
Unplug the refrigerator from the wall outlet for 5 minutes to reset the control board
- 2
Step 2
Plug the refrigerator back in and set the fresh food compartment to its recommended temperature of 37°F
- 3
Step 3
Monitor the internal temperature with a separate thermometer for 12 hours
- 4
Step 4
If the E1 error code returns, inspect the sensor wiring behind the back wall of the fresh food section for visible damage
- 5
Step 5
Call a technician to test thermistor resistance with a multimeter and replace if faulty
Tools Needed
When to Call a Technician
Error returns after power reset — the fresh food thermistor or control board input circuit needs replacement
Frequently Asked Questions
Common questions about Whirlpool E1 error
The E1 error on the Whirlpool WRS325SDHZ indicates a malfunction in the fresh food compartment temperature sensor. The control board relies on this sensor to regulate cooling for your perishable items. If the sensor fails, the compartment may run too warm or too cold, risking food spoilage.
Place a food-safe thermometer inside the fresh food compartment. The USDA recommends keeping refrigerators at or below 40°F. If the temperature reads above 40°F and the E1 error is present, do not rely on the refrigerator for perishable items until the sensor is repaired.
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