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GENERATORCODES

Home / Generac / 1400

Evolution 1.0 / 2.0

1400

High temperature

Engine · Alarm

Alarm 1400 is the high engine temperature shutdown. The e-code table describes impeded airflow: check the inlet and outlet for debris, then check the temperature sensor and its wiring. The manual index lists this shutdown as High Temperature E1400.

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

Likely causes

  • Leaves, snow, or other debris blocking inlet or outlet air.
  • A temperature switch or its wiring reading a fault.
  • A real overheat from load or a restricted enclosure.

Checks an owner can do

  1. Let the set cool. Do not open panels on a unit that just shut down hot.
  2. With it cool and off, clear debris from the outside inlet and outlet screens. Do not wash hot engine parts.

When to call a pro

If the screens are clear and 1400 returns, the temperature switch and wiring need the manual's test. Do not bypass the switch.

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/1400