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Error code · Cooktop

Whirlpool Cooktop Code F40: Older Smoothtop, Touchpad or Power Board

F40 appears on an older Whirlpool electric radiant smoothtop cooktop and points to the control side of the unit. The only guidance for it is a power reset, and it mentions the touchpad (user interface), the…

Medium · inspection needed
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Code
F40
Appliance
Cooktop
Brand
Whirlpool
Warranty
30-day workmanship

What F40 means

F40 appears on an older Whirlpool electric radiant smoothtop cooktop and points to the control side of the unit. The only guidance for it is a power reset, and it mentions the touchpad (user interface), the cooktop power control board, and the wiring between them. You will see F40 on the display and the cooking areas may not respond. These cooktops are still in many Houston homes, and we repair them.

Common causes of F40

  • The touchpad (user interface) not communicating
  • The cooktop power control board
  • The wiring between the touchpad and the power board
  • A brief electrical glitch that a reset clears
✓ One safe check you can try

1. Turn all cooking areas off and clear the glass. 2. Cut the cooktop's power at the breaker and give it a full minute. 3. Switch the breaker back on. 4. Stay nearby for a minute and see whether F40 returns. 5. Try one cooking area to confirm normal operation. If the code is back, stop using the cooktop.

! Why to stop there
  • A reset does not tell us which of the three areas is involved, so the code alone cannot name a part.
  • We check the touchpad, the power board and the connections before recommending anything.
  • We tell you plainly when a repair is not worth it on an older cooktop, and you approve the price first.
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

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 FC LFWhirlpool Cooktop Code FC LF: Left Front Element Circuit FC LRWhirlpool Cooktop Code FC LR: The Left Rear Cooking Position FC RRWhirlpool Cooktop Code FC RR: Right Rear Element and Wiring FCRFWhirlpool Cooktop Code FCRF Means a Right Front Element Circuit Problem
F40F40 questions
What does F40 mean on my Whirlpool cooktop?

It is a control-side code. The maker lists the touchpad, the power control board or the wiring as possibilities and gives a power reset as the first step. It does not name one part.

Will resetting the breaker fix F40?

Sometimes. If the code does not come back after one minute of watching, the reset worked. If it returns, the cause is still present and the controls need testing.

Is it worth repairing an older cooktop with F40?

Often yes, since control boards and touchpads are repairable. We give you the price in writing first and say honestly if replacing the cooktop makes more sense.

Book a visit

Still seeing F40?

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

(713) 589-6107