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Generac — Preparing for Maintenance

Maintenance · Generator

From a Generac service manual covering: RXSC100A3, RXSC200A3, RXSW100A3, RXSW150A3, RXSW200A3. Check it applies to your exact model before use.

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Before you start

  • Automatic start-up. Disconnect utility power and render unit inoperable before working on unit.

Procedure

  1. At the controller, turn the generator OFF.
  2. Set the MLCB (generator disconnect) on the generator to OFF (OPEN).
  3. Turn the main utility disconnect OFF (OPEN).
  4. Remove 7.5A fuse from the controller.
  5. Follow maintenance procedure(s).
  6. Turn the main utility disconnect ON (CLOSED).
  7. Install 7.5A fuse in controller.
  8. Put the generator into AUTO mode.
  9. Set the MLCB (generator disconnect) on the generator to ON (CLOSED).

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.

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