Aspen Avionics EFD1000 Error DH: Decision Height Caution

EFD1000 Primary Flight Display · taken from the manufacturer’s manual, pages cited

Error codeDH

The Decision Height Caution indicates that a connected radio altimeter has reached the altitude set by the pilot. The manual's first action is: “See the Radio Altimeter AFMS for more information”

Model
Aspen Avionics EFD1000
Display shows
Decision Height Caution (DH)
Type
Error code
Source
Manual p. 215

What DH means

Decision Height Caution p. 215

Common causes

  • a connected radio altimeter indicates it has reached the altitude set by the pilot. p. 215

What to do

  1. See the Radio Altimeter AFMS for more information p. 215

Before you service the product, read the safety instructions in the manual p. 53.

If DH is still not resolved

  • The pilot should follow the electrical failure checklist in the Aircraft Flight Manual land as soon as possible. p. 204
    “The pilot should follow the electrical failure checklist in the Aircraft Flight Manual land as soon as possible.”
Open the manual at page 215 All EFD1000 error codes Manual details & download

This page summarises what the manufacturer’s manual says about DH; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Aspen Avionics. Found a mistake? Report an error.