A microwave hood combination under wall cabinets with a dark display just after a power cut, a kitchen clock on the wall behind showing the evening.

JennAir PF or a blinking colon: the microwave clock after a power cut

After any interruption in supply, a JennAir hood combination comes back with PF or a blinking colon instead of the time.

(844) 393-5858

Mon–Sat, 8am–8pm

  • Power and supply
  • Microwave diagnostic visit
  • Source: JennAir

Book a visit

Three short steps, about a minute.

or call (844) 393-5858

What PF
actually means.

After any interruption in supply, a JennAir hood combination comes back with PF or a blinking colon instead of the time. It is a notice that the clock and any cycle in progress were lost, not a diagnosis of a failed part.

JennAir microwave display · also shown as :

What to do when PF shows on the microwave

Before you book,
in this order.

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

01

Press Cancel/Off (or Cancel) to stop the flashing.

02

Enter the time of day again.

03

If the flashing keeps returning with no outage in the house, have an electrician check the circuit; JennAir points to a qualified electrician for this one.

Still there?

It usually turns into microwave diagnostic visit. Book with the code and the model number.

What not to do

PF does not mean the control board is failing. It is also different from a breaker that trips every time the microwave starts, which is urgent and calls for a technician.

What you may
notice with it.

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

All problems

Where PF usually leads

Microwave diagnostic visit.

In JennAir's own words

If the colon " : " blinks in the display a power failure has occurred.
JennAir Product Help, over-the-range microwave: Flashing ":" or PF in display JennAir Product Help, over-the-range microwave: Flashing ":" or PF in display

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. From JennAir's help pages for its microwave hood combinations (Euro-style, including the convection models). The code set varies with the control generation, so a code missing from your model's manual may not apply to it.

JennAir PF 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 PF.

Can I clear PF myself?
Press Cancel/Off (or Cancel) to stop the flashing. If it comes back, it needs a visit.
Why does my JennAir microwave flash PF after a storm?
The supply dipped or went out, and the control reports it this way. Clear it with Cancel and set the time.
My JennAir flashes PF with no outage. Who should I call?
JennAir suggests an electrician when it keeps flashing, since a loose connection or a shared circuit is the usual cause.
Does PF erase my JennAir favorites?
It clears the time of day and any running cycle. Stored preferences usually survive, but check them after a long outage.

Back to your everyday

Still showing PF?

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