Error code · Cooktop

Whirlpool Cooktop Code F43: What the Control Circuit Message Means

Medium · inspection needed

Code: F43
Appliance: Cooktop
Brand: Whirlpool
Warranty: 30-day workmanship

What F43 means

When F43 appears on an older Whirlpool electric radiant smoothtop cooktop, the control is flagging its own power circuit. The guidance lists the cooktop power control board and the associated wiring, and the first step is a power reset. The display shows F43 and the cooking areas may not heat. Many Houston homes still have this older style, and we repair it.

Common causes of F43

The cooktop power control board
Loose or damaged wiring tied to the board
A one-time electrical disturbance

✓ One safe check you can try

1. Turn all controls off. 2. Switch the cooktop's breaker off and leave it for one minute. 3. Switch it back on. 4. Stay beside the cooktop for a minute and see whether F43 returns. 5. If the display stays normal, check each cooking area. If F43 shows again, stop using it.

! Why to stop there

Resetting only shows whether the condition is still present, not what causes it.
We trace the wiring and test the power board to see which part is involved.
You see the written price first, and we say so openly when an older cooktop is not worth repairing.

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

Indicator or Display FlashingWhirlpool Cooktop Indicator or Display Flashing: Pressed Keys or an Unsuitable Pan Indicator or Hot Light OnWhirlpool Smoothtop Cooktop Hot Light On: Control Still on or Glass Still Hot LockWhirlpool Smoothtop Cooktop Lock: Control Lock Is on Performance Boost FlashingWhirlpool Induction Cooktop Performance Boost Flashing: Zone Limited Power Level Lower Than Level RequestedWhirlpool Induction Cooktop Power Level Lower Than Requested, a Power Limit at Work U-uWhirlpool Induction Cooktop U-u: No Suitable Pan Detected FC E1Whirlpool Cooktop Code FC E1: Touchpad Message FC E4Whirlpool Cooktop Code FC E4: Harness to the Touchpad

F43F43 questions

Why is my cooktop showing F43?

The control sees a problem in its power circuit. The maker points to the power control board or the wiring and asks you to reset power at the breaker first.

Should I clean the glass for F43?

Wiping the glass is harmless, but F43 is not a dirt message like some other codes. If it persists after a reset, the circuit needs testing.

Do you repair older Whirlpool cooktops with F43?

Yes. We repair cooktops that are many years old, and if a repair does not make financial sense we say so before you spend anything.

Book a visit

Still seeing F43?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 589-6107