Frigidaire Infinite Switch Contacts Welded Closed

Cooktop surface element gets stuck on high heat regardless of knob setting.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Failed infinite switch, Shorted wiring at element, Incorrectly installed replacement switch

Safety first: Immediately turn off the burner and then shut off power at the breaker. Do not use the affected burner until repaired.

Inspect knob and shaft:
- Ensure the knob is not cracked and spinning freely on the shaft.
Access infinite switch:
- Remove the back panel behind the control knobs.
- Locate the switch for the affected burner.
Check wiring:
- Inspect for melted or shorted wires between switch and element.
Replace switch:
- Label and transfer wires one at a time to a new infinite switch of the correct rating.

Medium 3/5

Surface Element Infinite Switch

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