Whirlpool Dryer Error Code F4 E1
Supply Thermistor Open
Severity
DIY Difficulty
Est. Cost
$15 - $100
Est. Time
30 min
What Does F4 E1 Mean?
Whirlpool dryer error F4 E1 means supply thermistor open. This is a significant issue with a DIY difficulty of 4/5. Most repairs cost between $15 and $100.
Common Causes
Component wear
This is a potentially significant cause of the F4 E1 error on Whirlpool dryers.
Blockage
This is a potentially significant cause of the F4 E1 error on Whirlpool dryers.
Sensor failure
This is a potentially significant cause of the F4 E1 error on Whirlpool dryers.
Wiring issue
This is a potentially significant cause of the F4 E1 error on Whirlpool dryers.
Step-by-Step Fix
Power cycle the appliance
Unplug your Whirlpool dryer for 60 seconds, then plug it back in. This clears temporary errors and resets the control board.
Check for obvious issues
Inspect your dryer for any visible problems such as loose connections, blockages, or unusual sounds. Many F4 E1 errors on Whirlpool units are caused by simple issues.
Run a diagnostic cycle
Many Whirlpool dryers have a built-in diagnostic mode. Check your user manual for the specific key combination to enter diagnostics on your model.
Test related components
Based on the F4 E1 error meaning (Supply Thermistor Open), check the specific components involved. Use a multimeter to test for continuity if you are comfortable with electrical testing.
Contact a professional
If the above steps do not resolve the F4 E1 error, contact a certified Whirlpool technician. This repair has a difficulty rating of 4/5 and may require specialized tools.
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