Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Generac›Return to Service

Generac G-Force 1000 Series — Return to Service

Maintenance · Generator

For the Generac G-Force 1000 Series, from the Generac owner's manual.

Applies to: Generac G-Force 400 Series engine, Generac G-Force 800 Series engine, Generac G-Force 1000 Series engine

Before you start

  • Explosion. Always connect positive battery cable first to avoid spark.
  • Do not make battery connections in reverse.

Procedure

  1. Check tag on engine for oil viscosity and classification; drain and fill with correct oil if necessary.
  2. Verify state of battery; fill unsealed cells with distilled water and charge battery to 100% state of charge.
  3. Clean and wipe down generator enclosure.
  4. Verify 7.5A fuse is removed from generator control panel.
  5. Connect battery, observing polarity; install positive cable first.
  6. Connect battery charger AC input T1/Neutral cable (with white sleeve) at controller.
  7. Open fuel shutoff valve.
  8. Insert 7.5 A fuse into generator control panel.
  9. Complete Install Wizard procedure.
  10. Press MANUAL to start unit; allow unit to warm up for a few minutes.
  11. Press OFF button to stop unit.
  12. Set MLCB (generator disconnect) to ON (CLOSED).
  13. Press AUTO button on control panel.

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.

More Generac repair guides →