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Home›Repair guides›Generac›Shutting Generator Down While Under Load or During a Utility Outage

Generac — Shutting Generator Down While Under Load or During a Utility Outage

Operation

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. Set utility MLCB to OFF (OPEN).
  2. Set generator MLCB (generator disconnect) to OFF (OPEN).
  3. Allow generator to run for cool-down for approximately one minute.
  4. Set generator to OFF at the controller.
  5. Remove 7.5A fuse from controller.
  6. Install 7.5A fuse in controller.
  7. Verify generator MLCB (generator disconnect) is OFF (OPEN).
  8. Set generator to AUTO mode at the controller.
  9. Generator will start and run; allow warm up for a few minutes.
  10. Set generator MLCB (generator disconnect) to ON (CLOSED).
  11. Set utility MLCB 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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