Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error code51
ApplianceCooktop
Reading code 51
The sensor that watches the left front element’s temperature has failed, and the cooktop reports it as 51.
Two outcomes
Sensor test result
Part replaced
Sensor defective
The surface element, because the sensor is built into it
Resistance normal
The power generator control board
How the test goes
Power is disconnected, then a technician puts a volt/ohm meter on the element temperature sensor. A healthy sensor reads about 1000 ohms at room temperature. This is meter work, so it is not an owner job.
Cooktop models
The code is listed for Kenmore induction cooktops starting with 790 that show numbers only.
To have the left front sensor measured, arrange a visit through Kenmore cooktop repair; our technicians work in San Francisco and the Bay Area. Reach us on (415) 825-6393 with the model number and a note of which element showed 51.
Model compatibility: Kenmore reuses codes across series and model years, so 51 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
Left front temperature sensor failure.
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.
