Winco Transfer Switch Contact Damage

Visible arcing or burning smell from inside transfer switch during operation.

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

Worn or pitted ATS contacts, Loose power lugs causing arcing, Overloaded transfer switch, Contamination or moisture inside enclosure

Safety first: Immediately open main breakers and do not operate the switch. This is a serious fire and shock hazard.

Do not attempt repair energized: Only a licensed electrician should open and inspect the Winco transfer switch.
Inspect for damage: Burned contacts or melted insulation require replacement of the contactor or entire ATS.
Correct load issues: Ensure connected load does not exceed ATS rating.

Professional Required 5/5

Automatic Transfer Switch Contactor

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