Published September 2, 2026Updated October 17, 2026
Content status:
Verified
Error codeF42 / F43 / F58
ApplianceCooktop
Quick answer
Three codes with one listed suspect: the power control board or its wiring.
Model compatibility: JennAir reuses codes across series and model years, so F42 / F43 / F58 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
F42, F43 and F58 each describe a possible problem with the cooktop power control board or associated wiring.
On JennAir’s page the entries for F42, F43 and F58 read exactly alike: a possible problem with the Cooktop Power Control Board or with its associated wiring.
Role of the board
The board is the electronics that determines when power goes to the cooking areas and how much. The source names the board and wiring and leaves it there, with nothing on which fault actually occurred.
What an owner can do
Confirm that the cooktop is idle and turn its breaker off.
Wait a full minute.
Turn the breaker on.
Watch the cooktop for a minute, then try it.
No other owner step exists. The entries say nothing about cookware, cooling or the panel surface, since they are not about those things.
A caution
The power control board belongs to the electronics powered from the house, so any work on it is for a technician.
Three numbers, no difference
JennAir draws no line between them, so there is no telling why one cooktop shows F42 and another F58, or whether a number hints at a different connection. If different ones show on separate days, make a note of each.
Related board codes
F40 involves the same board along with the touchpad.
If one of these codes reappears once the power has been cycled, ring (310) 622-9465 about JennAir cooktop repair in Los Angeles, and tell us which of F42, F43 and F58 it was.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your JennAir appliance?
Book a specialist visit for a clear estimate and approval before any repair.
