Jump to content

407 FADEC Restart Fault? Help is greatly appreciated


Weads

Recommended Posts

In relation to a RESTART FAULT the RFM states that after you roll the throttle to idle (after landing) the PMA will go off line and you might have a flame out. My question is why would this happen? Under 85% nP the DC bus would supply the ECU with power and keep the engine running correct? RFM excerpt: When throttle is repositioned to idle stop (during engine shutdown) the PMA will go offline and engine may flameout. Thanks in advance for any insight from folks far more knowledgeable than myself.

Link to comment
Share on other sites

  • Weads changed the title to 407 FADEC Restart Fault? Help is greatly appreciated

The issue is going to relate to the FADEC circuit breaker. The Restart Fault light will illuminate after 30 seconds if for some reason the breaker pops, is faulty, or there is a wiring issue. The Fault light is indicating the ECU is not receiving power from the bus. When you roll the throttle to idle and lose the PMA the hot start solenoid loses power and shuts it down. I cant take credit for this, had to call David Fox for the answer.   

  • Like 1
Link to comment
Share on other sites

  • 7 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...