--- title: "JennAir cooktop showing F42 | CooktopRepair.center" description: "What F42 means on JennAir cooktops, what to check before booking, and when it is not a failure at all." url: "https://cooktoprepair.center/error-codes/jennair-f42/" --- # JennAir cooktop showing F42 F42 on a JennAir electric or induction cooktop points to the cooktop power control board or its wiring. ## What F42 actually means. F42 on a JennAir electric or induction cooktop points to the cooktop power control board or its wiring. JennAir publishes the same explanation for F43 and F58. JennAir cooktop display What to do when F42 shows on the cooktop ### Kind of code Boards and communication The touch board and the power board under the glass lost track of each other, or one failed its own start-up check. A power dip, a ribbon or harness pulled loose when the top was fitted, or moisture from a boil-over is ruled out before a board is replaced, and a cooktop that keeps heating while this code shows is switched off at the breaker. ### Usually leads to Touch control repair Glass touch keys and sliders that ignore a finger, start zones by themselves or stay locked, traced to the keys, the control board or the lock setting. ### Shows up as Cooktop Element Not Heating A coil stays black, a radiant ring under the glass never glows, or a zone warms so weakly that a pot of water will not boil. ### Make JennAir Whirlpool's luxury label and the name long linked with the downdraft cooktop. ### Source JennAir product help: F42, electric and induction cooktop JennAir electric and induction cooktops. ## Before you book, in this order. Each step comes from JennAir's own guidance for F42 on its cooktops. Follow it to the end: the last card says whether this is a visit. 01 Reset the power at the breaker for one minute. 02 Book a visit if the code returns. 03 If F43 or F58 appears instead, follow the same steps; JennAir explains them the same way. ### Still there? It usually turns into [touch control repair](https://cooktoprepair.center/services/touch-control-repair/). Book with the code and the model number. ### What not to do F42 is not a touchpad-only message. It points to the power control board or the wiring to it. ## What you may notice with it. The cooktop problems F42 tends to arrive with. Answer these at the cooktop before anyone is booked. [All problems](https://cooktoprepair.center/problems/) Before you call ### [Cooktop Element Not Heating](https://cooktoprepair.center/problems/element-not-heating/) [All 6 causes, cheapest first](https://cooktoprepair.center/problems/element-not-heating/) It also comes with - [**Cooktop Error Code**](https://cooktoprepair.center/problems/cooktop-error-code/) Problem ### Cooktop Element Not Heating 6 causes, cheapest first Where F42 usually leads ## Touch control repair. **Touch control board or key panel · moderate.** Book a visit [What the job involves](https://cooktoprepair.center/services/touch-control-repair/) ## JennAir cooktops. Whirlpool's luxury label and the name long linked with the downdraft cooktop. [JennAir cooktop repair](https://cooktoprepair.center/brands/jennair/) More JennAir codes [E2](https://cooktoprepair.center/error-codes/jennair-e2/) [F0](https://cooktoprepair.center/error-codes/jennair-f0/) [F0E1](https://cooktoprepair.center/error-codes/jennair-f0e1/) [F1E0](https://cooktoprepair.center/error-codes/jennair-f1e0/) [F2](https://cooktoprepair.center/error-codes/jennair-f2/) [F2E1](https://cooktoprepair.center/error-codes/jennair-f2e1/) [F4](https://cooktoprepair.center/error-codes/jennair-f4/) [F8](https://cooktoprepair.center/error-codes/jennair-f8/) [F21](https://cooktoprepair.center/error-codes/jennair-f21/) [F25](https://cooktoprepair.center/error-codes/jennair-f25/) [F36](https://cooktoprepair.center/error-codes/jennair-f36/) [F40](https://cooktoprepair.center/error-codes/jennair-f40/) [All 15 JennAir codes](https://cooktoprepair.center/error-codes/#codes-jennair) Boards and communication on other makes [BlueStar E](https://cooktoprepair.center/error-codes/bluestar-e/) [Bosch E7010](https://cooktoprepair.center/error-codes/bosch-e7010/) [Café F + number (flashing)](https://cooktoprepair.center/error-codes/cafe-f-code/) [Dacor F0](https://cooktoprepair.center/error-codes/dacor-f0/) [Frigidaire C0](https://cooktoprepair.center/error-codes/frigidaire-c0/) [Fulgor Milano Er47](https://cooktoprepair.center/error-codes/fulgor-milano-s700-er47/) [Gaggenau E7010](https://cooktoprepair.center/error-codes/gaggenau-e7010/) [GE Profile F + number (flashing)](https://cooktoprepair.center/error-codes/ge-profile-f-code/) [All 46 codes of this kind](https://cooktoprepair.center/error-codes/#family-communication) JennAir builds this ### Gas cooktop A gas cooking surface dropped into a countertop cutout, with its gas line and power cord running down into the cabinet underneath. JennAir builds this ### Electric cooktop A coil or smooth-glass radiant cooking surface built into the countertop and wired to its own circuit in the cabinet or wall behind it. JennAir builds this ### Induction cooktop A glass cooktop in the counter that heats the pan itself through magnetic coils, run by power boards and cooled by a fan underneath. ## In JennAir's own words > There may be a problem with the Cooktop Power Control Board, or the associated wiring. [JennAir product help: F42, electric and induction cooktop](https://producthelp.jennair.com/Cooking/Cooktops/Electric_Cooktop/Error_Code_or_Indicator_Light/Begins_with_an_F/F42_-_Electric_and_Induction_Cooktop) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. JennAir electric and induction cooktops. ## JennAir F42 cooktop 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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Reset the power at the breaker for one minute. If it comes back, it needs a visit. ### Are F42, F43 and F58 the same on a JennAir cooktop? JennAir gives all three the same explanation: the power control board or its wiring. ### Will elements work with F42 showing? Usually not reliably, because the power board drives them. Book a visit. ### What does F42 point to on a JennAir electric or induction cooktop? JennAir names the cooktop power control board or its wiring for F42. The touchpad is not on that list, which is how F42 differs from F40. --- **[Read on the site: JennAir cooktop showing F42 | CooktopRepair.center](https://cooktoprepair.center/error-codes/jennair-f42/)** **[Book a visit with CooktopRepair.center](https://cooktoprepair.center/schedule/)**