Generac — ATS & BTS Trip Control Switch Removal (Wn)

Repair & overhaul · ATS/BTS Limit Switches

From a Generac service manual — check it applies to your exact model before use.

Browse Generac generators & specs →

Procedure

1. Remove main contactor assembly cover plate.
2. ATS limit switch is on upper half (Utility side). BTS limit switch is on bottom half (Emergency side).
3. To remove ATS limit switch, remove the 2 Phillips head screws attaching arc shoot to backing plate.
4. Slide arc shoot up vertically and remove from contactor assembly.
5. ATS limit switch is now accessible. To access lower screw, it may be necessary to manually put transfer switch in Utility position.
6. For BTS limit switch, repeat steps and remove arc shoot backing screws. May need to manually transfer to Emergency position and remove E1-E3 lugs (and E4 if applicable).
7. Remove and reinstall the limit switch.

Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

More Generac repair guides →