Generac — Test 23 – Check Start-Run-Stop Switch
Testing & diagnosis · START-RUN-STOP Switch (SW1)
From a Generac service manual covering: GP1800, GP1850, GP3250, GP5000, GP5500, GP6500, GP7000, GP8000. Check it applies to your exact model before use.
Applies to: Generac GP1800, Generac GP3250, Generac GP5000, Generac GP5500, Generac GP6500, Generac GP7000, Generac GP8000, Generac OHVI engine
Procedure
- Set a voltmeter to measure resistance.
- Remove all wires from the START-RUN-STOP Switch.
- Check terminal 2 to 1: CONTINUITY in START, INFINITY in STOP.
- Check terminal 2 to 3: CONTINUITY in STOP, INFINITY in START.
- Reconnect all wires to the switch.
Tools required
- voltmeter (resistance) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- CONTINUITY / INFINITY as listed
Full service-parts list: Generac GP1800 →, Generac GP3250 →, Generac GP5000 →, Generac GP5500 →, Generac GP6500 →, Generac GP7000 →, Generac GP8000 →
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.