Roger Lee Posted August 10, 2010 Report Share Posted August 10, 2010 Here is a good guide to help diagnose flap control issues. CT flap control unit.pdf Link to comment Share on other sites More sharing options...
rdeurloo Posted December 19, 2010 Report Share Posted December 19, 2010 I've been having flap issues for several months. In the cold weather, they quit working altogether. The degree setting display would just flash, and I could hear a clicking sound from the printed circuit board on the firewall. It seemed that when you "jiggled" this board the flaps would work. I called Flight Design, and Arian confirmed that this was probably the problem. I talked to Matt the parts man the next day, and he said they had the circuit board and switches in stock, and the cost was approximately $260.00 They over-nighted it to me, and my flaps were working the next day. My plane is 4 years old with 800 hours, and I was extremely pleased with the service I received from Flight Design. Bob Link to comment Share on other sites More sharing options...
samifer Posted May 26, 2014 Report Share Posted May 26, 2014 Hey I am also having flap issues I was wondering what #you called to get a hold of at FD ? Thanx! Link to comment Share on other sites More sharing options...
Anticept Posted May 26, 2014 Report Share Posted May 26, 2014 Hi samifer! I can help you with your problem. I'm building a flap bench tester for FDUSA the next time I am out there for a few days. The flap controllers are made by a third party, and neither FDUSA or Germany has much info on how they operate other than where things are wired to make them work. You can describe the problem here if it is simple, or I can call you if you want. Link to comment Share on other sites More sharing options...
samifer Posted May 26, 2014 Report Share Posted May 26, 2014 Hey Anticept Thanx for the quick response I think it is just that little sending unit that tells the control unit where the flaps are. if I wiggle the wires that go into it the symptoms change. one thing that always stays the same is the "Err" readout on the screen other than that the flaps will just hunt and end up at either -12 or 35 What I really need is to find out how I can buy that little potentiometer Im stuck in a small town in central British Columbia Canada Link to comment Share on other sites More sharing options...
Anticept Posted May 26, 2014 Report Share Posted May 26, 2014 It's a 10k ohm potentiometer. You can buy them from an electronics store. You will need to recalibrate after it is installed. Link to comment Share on other sites More sharing options...
Roger Lee Posted May 26, 2014 Author Report Share Posted May 26, 2014 I'm out of town, but they are about $13 and I have the link to the website at home. I'll have to wait until this Sunday before I get home for the web link. Link to comment Share on other sites More sharing options...
samifer Posted May 27, 2014 Report Share Posted May 27, 2014 Ok that sounds good if you remember before drop me a line Link to comment Share on other sites More sharing options...
samifer Posted May 27, 2014 Report Share Posted May 27, 2014 Well I found the prob (broken wire rite at potentiometer) now got to set flaps back up any links to that pdf haha ??? Link to comment Share on other sites More sharing options...
Roger Lee Posted May 27, 2014 Author Report Share Posted May 27, 2014 No PDF, but you can call me or CT4ME (Tim) and we can tell you how to do it. It is fairly straight forward and should take around 30-40 min. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted May 27, 2014 Report Share Posted May 27, 2014 Can't you just re-solder the wire? Link to comment Share on other sites More sharing options...
CT4ME Posted May 28, 2014 Report Share Posted May 28, 2014 Sounds like they've fixed the wire, but now need to re-calibrate the flaps. Right? Link to comment Share on other sites More sharing options...
Anticept Posted May 28, 2014 Report Share Posted May 28, 2014 I have a copy of the flap programming instructions. It is indeed straight forward, but you must be careful to do it correctly or you will damage your circuit board (a 1,300 dollar part!). Two of the pins, if bridged together, will fry multiple components on the board. Link to comment Share on other sites More sharing options...
samifer Posted May 28, 2014 Report Share Posted May 28, 2014 well update on the progress Note to future flap fixers : Don't heat up the potentiometer to much when soldering .... it stops working if you do!! I will go on the hunt for one of them tomorrow and im hoping that the new one will just work with the old settings if I just try to get it in the same place Link to comment Share on other sites More sharing options...
Anticept Posted May 28, 2014 Report Share Posted May 28, 2014 When you solder, the ideal temperature will be the one where the flux (rosin) in the solder smokes between two to three seconds when tinning the tip. If it smokes less than that, your iron is too hot. If you are using dipped flux, then you just need a light coating on the solder. Do not touch a part for more than a few seconds, or as you have found out, it will burn the component. If you were not able to finish soldering, then wait a short time for it to cool down and try to reheat the solder. More than a couple reattempts and you should add a dab of flux to keep the joint oxide free, or if you are using rosin-core solder, remove the solder and add new. Link to comment Share on other sites More sharing options...
Roger Lee Posted May 28, 2014 Author Report Share Posted May 28, 2014 Hi Samifer, You will have to program the system after the new potentiometer is installed. You won't have a choice. Link to comment Share on other sites More sharing options...
Anticept Posted May 28, 2014 Report Share Posted May 28, 2014 Hi Samifer, You will have to program the potentiometer. You won't have a choice. You must have a mystical potentiometer if you can program it! Link to comment Share on other sites More sharing options...
samifer Posted September 3, 2014 Report Share Posted September 3, 2014 ok well i finally got my new pot and we just put that little sucker in and turned it slowly and found the sweet spot and BAM!! works like a charm Thanx for all your advice Link to comment Share on other sites More sharing options...
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