A built-in microwave in a kitchen cabinet stopped halfway through a cycle, a covered glass dish of vegetables inside behind the mesh window and a faint wisp of steam on the glass.

KitchenAid F8E5: the exhaust air temperature sensor

KitchenAid hood combinations track the temperature of the exhaust air so the fan can respond to heat rising from below and to the unit's own heat.

(844) 393-5858

Mon–Sat, 8am–8pm

  • Sensors and temperature
  • Microwave control board and touchpad repair
  • Source: KitchenAid

Book a visit

Three short steps, about a minute.

or call (844) 393-5858

What F8E5
actually means.

KitchenAid hood combinations track the temperature of the exhaust air so the fan can respond to heat rising from below and to the unit's own heat. F8E5 means the exhaust air temperature sensor or its wiring gave a reading the control cannot use, and it halts the function that was running.

KitchenAid microwave display · also shown as F8 E5

What to do when F8E5 shows on the microwave

Before you book,
in this order.

Each step comes from KitchenAid's own guidance for F8E5 on its microwaves. Follow it to the end: the last card says whether this is a visit.

01

Switch the microwave off at the breaker for one full minute, then switch it back on.

02

Leave it idle for a minute and watch the display; if the code does not return, run a short test cycle.

03

Check that the grease filters are in place and clean, since a clogged filter changes the air flowing past the sensor.

04

If F8E5 comes back, book a visit to test the sensor.

Still there?

It usually turns into microwave control board and touchpad repair. Book with the code and the model number.

What not to do

F8E5 is not a code about the vent door, which is F7E9. It also does not mean the cooking surface below is overheating on its own.

What you may
notice with it.

The microwave problems F8E5 tends to arrive with. Answer these at the microwave before anyone is booked.

All problems

Where F8E5 usually leads

Microwave control board and touchpad repair.

Control board, keypad membrane or display · moderate to highest.

In KitchenAid's own words

There may a problem with the Exhaust Air Temperature Sensor, or the associated wiring.
KitchenAid Product Help, over-the-range microwave: F8E5 KitchenAid Product Help, over-the-range microwave: F8E5

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed on KitchenAid's help pages for over-the-range microwaves; the lettered F-codes belong to the newer hood controls, and the exact code set depends on the model generation.

KitchenAid F8E5 microwave repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas
A family warming plates of food at a built-in microwave in a bright kitchen
For the heart of your home.

Questions
about F8E5.

Can I clear F8E5 myself?
Switch the microwave off at the breaker for one full minute, then switch it back on. If it comes back, it needs a visit.
Why does my KitchenAid fan come on by itself?
Hood combinations switch the fan on when they sense heat rising from below. If that happens with F8E5 showing, the exhaust sensor reading is suspect.
Is F8E5 on a KitchenAid serious?
It is not a hazard by itself, but the unit loses its heat guard for the exhaust. Have it checked rather than resetting it repeatedly.
Could dirty filters trigger F8E5?
They change the airflow the sensor reads. Clean filters are worth checking first, though the code itself names the sensor and wiring.

Back to your everyday

Still showing F8E5?

Three details make the booking useful: the characters or beeps just as they appeared, every character of the model number, and whether a cup of water still warms up. With those, the technician arrives already halfway to the answer.

(844) 393-5858 Schedule a repair