--- title: "JennAir PF or a blinking colon: the microwave clock after a power cut" description: "What PF means on JennAir PF or a blinking colon: the microwave clock after a power cuts, what to check before booking, and when it is not a failure at all." url: "https://microwaverepair.center/error-codes/jennair-pf/" --- # 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. ## 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 ### Kind of code Power and supply The microwave has noticed trouble with the power reaching it: an outage or a brownout that interrupted a cycle, a voltage too low for the magnetron to start, or a supply that dipped when something else on the circuit switched on. As often as not the cause is the circuit, the outlet in the cabinet above or the breaker rather than the unit; a main fuse that blows again after a reset points inside, where only a technician goes. ### Usually leads to Microwave diagnostic visit A visit that times a cup of water against the clock, checks the door and its switches, then tests the high-voltage section, the controls and the moving parts one at a time until a single part is named. ### Shows up as What a Microwave Error Code Is Telling You A microwave error code may be a letter and a number on the display, a lock or demo word, a row of dashes, or a beep with a blinking clock, and it can show while the microwave still heats or block every key until it is cleared. ### Make JennAir JennAir microwaves looked at in place, with the breaker, the door switches and a one-minute heat test covered before any part is priced. ### Source JennAir Product Help, over-the-range microwave: Flashing ":" or PF in display 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. ## 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](https://microwaverepair.center/services/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](https://microwaverepair.center/problems/) Before you call ### [What a Microwave Error Code Is Telling You](https://microwaverepair.center/problems/microwave-error-code/) [All 7 causes, cheapest first](https://microwaverepair.center/problems/microwave-error-code/) It also comes with - [**Microwave Display Dark, Dim or Scrambled**](https://microwaverepair.center/problems/microwave-display-not-working/) - [**Microwave Won't Turn On at All**](https://microwaverepair.center/problems/microwave-not-turning-on/) Problem ### What a Microwave Error Code Is Telling You 7 causes, cheapest first Where PF usually leads ## Microwave diagnostic visit. Book a visit [What the job involves](https://microwaverepair.center/services/diagnostic-visit/) ## JennAir microwaves. JennAir microwaves looked at in place, with the breaker, the door switches and a one-minute heat test covered before any part is priced. [JennAir microwave repair](https://microwaverepair.center/brands/jennair/) More JennAir codes [LOC](https://microwaverepair.center/error-codes/jennair-loc/) [DOOR](https://microwaverepair.center/error-codes/jennair-door/) [Demo](https://microwaverepair.center/error-codes/jennair-demo/) [E03](https://microwaverepair.center/error-codes/jennair-e03/) [E11](https://microwaverepair.center/error-codes/jennair-e11/) [E21](https://microwaverepair.center/error-codes/jennair-e21/) [F3T3](https://microwaverepair.center/error-codes/jennair-f3t3/) [F4E1](https://microwaverepair.center/error-codes/jennair-f4e1/) [F4E4](https://microwaverepair.center/error-codes/jennair-f4e4/) [F6E0](https://microwaverepair.center/error-codes/jennair-f6e0/) [F7E9](https://microwaverepair.center/error-codes/jennair-f7e9/) [F9Q1](https://microwaverepair.center/error-codes/jennair-f9q1/) [All 21 JennAir codes](https://microwaverepair.center/error-codes/#codes-jennair) Power and supply on other makes [Bertazzoni SERVICE](https://microwaverepair.center/error-codes/bertazzoni-service/) [Bosch ENJOY YOUR MICROWAVE TOUCH CLEAR](https://microwaverepair.center/error-codes/bosch-enjoy-your-microwave/) [Café PF](https://microwaverepair.center/error-codes/cafe-pf/) [Dacor WELCOME PRESS CLEAR AND PRESS CLOCK](https://microwaverepair.center/error-codes/dacor-welcome/) [Fisher & Paykel WELCOME PRESS CLEAR AND PRESS CLOCK](https://microwaverepair.center/error-codes/fisher-and-paykel-welcome/) [Fulgor Milano WELCOME PRESS CLEAR AND PRESS CLOCK](https://microwaverepair.center/error-codes/fulgor-milano-welcome/) [Gaggenau E300](https://microwaverepair.center/error-codes/gaggenau-e300/) [GE Profile PF](https://microwaverepair.center/error-codes/ge-profile-pf/) [All 20 codes of this kind](https://microwaverepair.center/error-codes/#family-power) JennAir builds this ### Microwave hood combination The microwave that hangs from the wall cabinets above the burners, heating food in its cavity while its own fan, light and filters handle the steam and grease rising from the pans beneath it. JennAir builds this ### Built-in microwave A microwave set into a tall cabinet or a wall of cabinetry at eye level, either a countertop body wrapped in a trim kit or a true built-in model, including speed and convection microwaves that brown as well as heat. JennAir builds this ### Microwave drawer A microwave built under a counter or into a kitchen island that opens like a drawer at the touch of a key, with a motor and gears sliding its cavity out toward you. ## 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](https://producthelp.jennair.com/Cooking/Microwaves/Over-the-Range_Microwave/Error_Code/Other_Error_Codes/Flashing_%22%3A%22_or_PF_in_display_-_Over-the-Range_Microwave) [JennAir Product Help, over-the-range microwave: Flashing ":" or PF in display](https://producthelp.jennair.com/Cooking/Microwaves/Over-the-Range_Microwave/Error_Code/Other_Error_Codes/Flashing_%22%3A%22_or_PF_in_display_-_Over-the-Range_Microwave) 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. 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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. --- **[Read on the site: JennAir PF or a blinking colon: the microwave clock after a power cut](https://microwaverepair.center/error-codes/jennair-pf/)** **[Book a visit with MicrowaveRepair.center](https://microwaverepair.center/schedule/)**