KitchenAid Induction Cooktop Code F43: a board and wiring check for the induction power side

What F43 means

KitchenAid induction cooktops, among them the KCIG550JSS, use F43 for a possible Cooktop Power Control Board problem, or a wiring problem leading to it. The board sits under the glass and runs the induction coils. When F43 shows, owners can expect a cooktop that shuts down or declines to start a zone. The number is one of several that name this same board, and cooking habits or pans have no bearing on it, so the owner can only reset power once and wait for a technician. Zones may stay cold.

Common causes of F43

A power control board that has failed
A wiring harness to the board with damage
A loose plug on the board
Voltage trouble hitting the board

✓ One safe check you can try

1. Switch every zone off. 2. Reset power at the breaker after a minute. 3. Look at the display and try a single zone. 4. If F43 is back, stop and book us. 5. Keep pans off the glass while the code is showing and write down the exact characters on the display.

! Why to stop there

The board holds high-voltage parts that stay dangerous even when the display is off.
A visit with proper test tools is the safe route.
We put the price in writing before the work and give you 30 days of warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Cooktop codes

F61KitchenAid Induction Cooktop Code F61: a wide net of touch control, module, wiring and supply Power Level Lower Than Level RequestedKitchenAid Induction Cooktop: power level lower than the level you requested F63KitchenAid Induction Cooktop Code F63: touch control, power module or supply need checking U uKitchenAid Induction Cooktop Symbol "U u": pan not recognized on the zone F64KitchenAid Induction Cooktop Code F64: the touch control and power module group FC E0KitchenAid Induction Cooktop Code FC E0: supply, wiring or the induction module FC E1KitchenAid Induction Cooktop Code FC E1: touchpad or the cable behind it FC E4KitchenAid Induction Cooktop Code FC E4: the harness between touchpad and induction module

F43F43 questions

Why does F43 sound like F42?

Both mention the same board and wiring. We see the numbers as clues to which check tripped. The first step for you is the same: reset power once, then call if it stays.

Does F43 mean a new cooktop?

Not normally. A board or a wire is replaced, and the glass and coils are kept. We give you the price first so you can compare with replacing the cooktop.

Can pans cause F43?

Normally not. This code is about the electronics, so changing pans will not clear it. If you also see cookware codes, mention them to us.