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KitchenAid Refrigerator F3E8 / F3E9 Error Code
Kitchen temperature or humidity sensor fault on KitchenAid refrigerators.
KitchenAidAll KitchenAid refrigerator codes
Both codes point at sensors that read the room around the fridge. F3E9 is the room (ambient) temperature sensor and F3E8 is the humidity sensor that works alongside it. Neither one sits inside the food compartments, but have a thermometer in each section anyway until the fault is cleared.
Compatible models
KitchenAid has separate F3E8 and F3E9 pages under French door bottom freezer refrigerators. Models without a room sensor won't show these codes.
Also shown as
The tech sheet lists F3E8 as the external humidity sensor and notes it's paired with the ambient temperature sensor (F3E9). Only fridges fitted with these sensors can show the codes.
Difficulty
Try the basic checks, but the usual fix is a technician's job.
Not sure you are reading the code right? See how to read KitchenAid refrigerator codes.
How to fix KitchenAid F3E8 / F3E9
Do a one-minute reset
Switch the breaker off or unplug the fridge for a minute, then power it back up and watch whether the code reappears.
Look at the spot the fridge is in
Heat from a range, a dishwasher vent, a heat register or afternoon sun on the cabinet can throw these sensors off. KitchenAid French-door manuals give an installation range of roughly 50 to 110°F (10 to 43°C).
When to call a technician
If the code keeps coming back, have the sensor and its wiring tested. With both compartments at normal temperature it can usually wait for a routine appointment.
Parts linked to F3E8 / F3E9
These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.
Order parts by your full model number so they fit.
Frequently asked questions
Which KitchenAid models show the F3E8 / F3E9 code?
KitchenAid has separate F3E8 and F3E9 pages under French door bottom freezer refrigerators. Models without a room sensor won't show these codes.
Can I fix KitchenAid F3E8 / F3E9 myself?
Only the basic checks. You can safely try the steps above, but F3E8 / F3E9 usually points to a part or fault that needs a technician.
Other KitchenAid refrigerator codes
- F3E1Fresh food temperature sensor fault
- F3E2Freezer temperature sensor fault
- F3E4Evaporator (defrost) sensor fault
- F4E1Defrost heater fault
- F6E1Display and main board can't talk to each other
- POPower went out long enough to warm the freezer
- Temperature AlarmFridge or freezer stayed too warm
- Cooling OffCooling is switched off
- Door AlarmDoor or freezer drawer left open
- H2OWater filter due for replacement
Last reviewed 2026-10-20. Codes and steps can vary by model; check your owner's manual.