Generac G0070420 — Automatic Transfer Operation
Operation · Transfer switch / controller
For the Generac G0070420, from the Generac owner's manual.
Applies to: Generac G0070420, Generac GH-426 engine, Generac GTH-530 engine, Generac GT-999 engine
Procedure
- Verify transfer switch main contacts are set to UTILITY.
- Verify normal utility power source voltage is available at transfer switch terminal lugs N1 and N2.
- Press the AUTO button on the control panel interface.
- Set the MLCB (generator disconnect) to ON (CLOSED).
Full service-parts list: Generac G0070420 →
Source: Generac owner's 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.