Defrost sensor error — defrost circuit temperature sensor malfunction
The E2 error on the Whirlpool WRS325SDHZ indicates defrost sensor error — defrost circuit temperature sensor malfunction. This typically occurs due to failed defrost thermostat or thermistor on the evaporator coils. A qualified technician can usually diagnose this in 20 min (plus 24–48 hr defrost time), 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 E2
- 1Failed defrost thermostat or thermistor on the evaporator coils
- 2Blown thermal fuse in the defrost circuit
- 3Control board defrost relay failure
- 4Loose wiring at the defrost sensor connector
How to Fix E2
- 1
Step 1
Unplug the refrigerator from the wall outlet
- 2
Step 2
Remove all food from the freezer and store it in a cooler with ice
- 3
Step 3
Leave both doors open for 24 to 48 hours to perform a complete manual defrost
- 4
Step 4
Check that the freezer drain is clear and draining melt water into the drip pan below
- 5
Step 5
Plug the refrigerator back in and monitor over the next several days for returning frost buildup
- 6
Step 6
If heavy frost returns within three to five days, call a technician to test the defrost sensor and thermal fuse
Tools Needed
When to Call a Technician
Heavy frost returns within days of manual defrost — defrost sensor, thermal fuse, or heater needs professional replacement
Frequently Asked Questions
Common questions about Whirlpool E2 error
The E2 error on the Whirlpool WRS325SDHZ indicates a problem with the defrost circuit temperature sensor. When this sensor fails, the automatic defrost cycle may not activate correctly, causing frost to build up on the evaporator coils and eventually restricting airflow through the refrigerator.
A manual defrost will temporarily restore normal cooling by clearing accumulated frost, but it does not fix the underlying sensor failure. The defrost thermostat, thermal fuse, or heater will need to be tested and replaced by a qualified technician to prevent the error from recurring every few weeks.
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