Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error code34
ApplianceCooktop
What a 34 is telling you
Inside the cooktop, the filter control board and the main power control board exchange signals. A 34 shows that this exchange has broken down.
Parts order in the Kenmore list
Power is disconnected.
Wire harness connections are inspected at both boards.
With those connections sound, the main power control board is the first part replaced.
A fault that survives the new main board leads to replacing the filter control board as well.
Which cooktops use this entry
The Kenmore 790 induction series, where the display shows numbers rather than letters.
Compare these codes
Code 36 describes the same board-to-board problem, reported from the main board side.
Code 40 lists the same two boards and the same remedy.
Code 33 is about wrong voltage leaving the filter board instead.
Cooktop repair near you in San Francisco
A cooktop stuck on 34 is a job for a technician, and we schedule those across San Francisco and the surrounding Bay Area through Kenmore cooktop repair. Call (415) 825-6393; the model number and a note on whether the harness was ever disturbed will speed things along.
Model compatibility: Kenmore reuses codes across series and model years, so 34 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
Communication failure between the filter control board and the main power control board.
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 Kenmore appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Kenmore appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
