Motor losing power in Gaui 500X

Lubebosch · 04-02-2012, 02:50 PM

I built a stock Gaui 500X with a FY-91Q GPS Controller on 2S Lipo
It flew great until I decided to assemble a dedicated camera gimbal and move to 3S Lipo.
The unit now lifts off and, after a few seconds. the rear left motor loses power and the ship falls reversing on that side. If I start again, same story.
I also put a BEC to avoid overload of the ESC, but nothing changed. The FY-91Q seems to work well (no malfunction LED on).
Any suggestion?
Thanks
Luigi

Lubebosch · 04-05-2012, 03:55 AM

Anyone?
Thanks

ppridday · 04-05-2012, 09:02 AM

Is there any chance that one of your ESC's or one of the motors is failing? You should be able to swap motors and controllers around and check that through process of elimination.

Paul

briangp · 04-11-2012, 09:17 PM

I'm still new to this bird, but first thing I'd check is for bad bearings on that motor. Swap the motor position and see if it follows, that would be a good troubleshooting technique.

maxtrin · 05-05-2012, 02:55 PM

Hello i have the exact same with my Gaui 330X any ides??

04-02-2012, 02:50 PM	#1
Lubebosch Registered Users Join Date: Jun 2006 Location: Milan, Italy	Motor losing power in Gaui 500X I built a stock Gaui 500X with a FY-91Q GPS Controller on 2S Lipo It flew great until I decided to assemble a dedicated camera gimbal and move to 3S Lipo. The unit now lifts off and, after a few seconds. the rear left motor loses power and the ship falls reversing on that side. If I start again, same story. I also put a BEC to avoid overload of the ESC, but nothing changed. The FY-91Q seems to work well (no malfunction LED on). Any suggestion? Thanks Luigi

04-05-2012, 09:02 AM	#3
ppridday Registered Users My HF Map location Join Date: Mar 2005 Location: Detroit Lakes, MN	Is there any chance that one of your ESC's or one of the motors is failing? You should be able to swap motors and controllers around and check that through process of elimination. Paul __________________ I love the smell of kero in the morning.... To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

04-11-2012, 09:17 PM	#4
briangp Registered Users My HF Map location Join Date: Aug 2009 Location: Sack-a-tomatoes, CA	I'm still new to this bird, but first thing I'd check is for bad bearings on that motor. Swap the motor position and see if it follows, that would be a good troubleshooting technique. __________________ AMA# 655558 Trex 600E, Compass 6HV FBL Head, Microbeast, Inolab DS760MG cyclic, Logictech 6100G tail, CC HV85 ESC, Scorpion 4025-630

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04-05-2012, 03:55 AM	#2
Lubebosch Registered Users Thread Starter Join Date: Jun 2006 Location: Milan, Italy	Anyone? Thanks

05-05-2012, 02:55 PM	#5
maxtrin Registered Users Join Date: Apr 2012 Location: Sweden	Hello i have the exact same with my Gaui 330X any ides??