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GENERATORCODES

Home / Generac / 2400

Evolution 1.0 / 2.0

2400

Fuse problem

Controller · Alarm

Alarm 2400 is a missing or open controller fuse. The e-code table says the 7.5 amp controller fuse is missing or blown, and it marks this code for firmware version 1.11 and older only.

Seen on: Air-cooled home standby generators with an Evolution 1.0 or 2.0 controller.

Likely causes

  • The 7.5 amp controller fuse is missing or open.
  • A short that opened the fuse. Replacing it without finding the short will open it again.

Checks an owner can do

  1. This check applies only if your controller firmware is 1.11 or older, which is what the table limits the code to.
  2. With the mode in OFF, utility power removed from the transfer equipment by a qualified person, and the battery negative disconnected, look at the controller fuse. Replace it only with the same 7.5 amp rating.

When to call a pro

If the new fuse opens as soon as the battery is reconnected, stop. A short in the control harness is a dealer diagnosis.

Source

Generac Diagnostic Repair Manual 10000041488 (Evolution 1.0/2.0 air-cooled). E-code rows below match that manual's alarm table as published by Home Generators for Sale and the manual text extracted from document 10000041488.

Wording follows that document. Firmware can change a threshold. If this page and the manual shipped with your unit disagree, follow the manual.

What fixed mine

No approved reports for this code yet. Send one. It stays in the review queue until it is approved.

Related Generac codes

https://generatorcodes.com/brand/generac/2400