Whirlpool Range Error Code 4d42: Meaning and Fix
Reading the range display
On a range or oven the fault appears on the clock or oven display, often with a beep. Press Cancel or Clear once to silence it, and write the code down first. Whirlpool-family codes are usually read as a letter and number pair, with an E sub-code after it.
Whirlpool is the parent platform for Maytag, KitchenAid and Amana, so many of its control boards and fault codes reappear across those brands. Its panels typically report two-part codes such as F5 E2 or flash sequences on the keypad. The codes apply to model numbers such as GU980SCGB2, GU980SCGQ2 and GEW9200LW0; check the label on your unit to confirm yours.
What causes 4d42
- Defrost heater, sensor or timer has failed and frost is blocking airflow
- Damper or air duct is stuck or iced over
- Evaporator or condenser fan is not running
- Compressor start components or the sealed system are failing
- Door gasket is leaking warm air
How to fix it
- Cycle the power: turn the range or oven breaker off for one minute, switch it back on, and run the function that showed the code.
- Before opening any panel, switch off the breaker or unplug the appliance; this circuit can carry line voltage.
- Check that the doors seal and nothing keeps them from closing; look for frost build-up on the back wall of the freezer.
- Listen for the evaporator and condenser fans and confirm both turn freely.
- Unplug the unit with the doors open for several hours to melt any frost fully, then restart and watch temperatures over 24 hours.
- If frost returns, test the defrost heater, sensor and fans in turn and replace the one that fails; call a technician for sealed-system faults.
- Run a full short cycle or function again and confirm the code stays gone before putting the appliance back into normal use.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Control Assembly Lcx | W11567368 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does 4d42 mean on a Whirlpool range or wall oven?
It is a fault code from the Whirlpool control. It indicates a problem with the cooling system. A power reset is the first thing to try.
Can I keep using the range or wall oven while it shows 4d42?
Stop using it until it has been checked. This fault involves heat, high voltage or sealed-system parts, and running it can damage the appliance or create a safety risk.
Do I need a technician to clear 4d42?
Often yes. Part of this repair means testing live circuits or replacing a control board, so a technician is the safer choice unless you are comfortable with electrical diagnosis.
Other Whirlpool range codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including RS630PXK0, SF385PEEQ0, SF315PEKW0, RF111PXSQ0, SF368LEPS0, RS6300XKW0, SF368LEPS1, RF3020XKQ1.
- https://producthelp.whirlpool.com/Cooking/Wall_Ovens_and_Ranges/Wall_Ovens_new/Error_Code_or_Message/Starts_with_4d/4d42_-_Wall_Oven
- https://producthelp.whirlpool.com/Cooking/Wall_Ovens_and_Ranges/Ranges/Error_Codes/Starts_with_a_Number_(1%2C_3%2C_4%2C_or_9)/Starts_with_4d/4d42_-_Error_Code_-_Range
- https://www.appliancepartspros.com/whirlpool-control-assy-lcx-w11567368-ap7179186.html