it became very noisy and would immediately tip over backwards during take off. I am unable to determine which motor is defective. HELP please
796043
Did you check The shafts? Maybe the problem is some shaft is a little bent, not the motor.
190729
That doesn't sound good, it sounds like a part is loose in the motor, I would personally return it. I bought 2 and they hummed and purred, there was no grinding noise at all. Hope this helps.
716439
The belt may be broken or the motor burned up....both of those happened to me! Get your money back if you still can!!!
1056909
Have you adjusted your trims to get it hovering? Depending on whether it is yawing or simply moving right, you can use the little white trim levers to correct it. I had to do this to get mine flying well the first time I flew it.
1708799
It's been a long time, but as I recall that was what I had. I checked the motor and it worked, so I replaced the board and that fixed it. Hope this helps.
1367985
Check to see if there is any damage to the blades. Hold the bottom of the copter and spin the blades. Look at them from the side, and look for wobbling motion, or vibration noise. If a motor wobbles, replace the blade. I know this is late, but it might help others.
1052443
Just call or send airlift and email. They have great customer service, most likely they will send you new ones at no charge. Make sure you register your warranty online before you contact them about your problem, otherwise you'll be paying for the parts for sure! Hope this helps you.
1102780
sounds like a battery issue mine flies like that when the battery is almost dead after about 10 min.
2039818
I ended up replacing mine. It was noisy and would stop on its own. I'd simply replace it!
192762
Make sure the flight controller is free of vibration, and the wires are secure because vibration can travel up them. If problem continues verify radio and receiver with a range check. Maybe back off the gains a little or place a ferrite ring on the inputs of the gyro. All fails chuck it get a Openpilot cc3d 10-15 bucks Ebay
904347
Sounds like something is hooked up backwards. No problem with that here while it was running, mine died after 2 months of use, motor burned up.
1571214
Sorry to say, but I think you have a bad motor. I would return it if possible or call Proform to replace it especially if you recently purchased it.
867614
unfortunitly I had same problem dont know what the deal was I updated the drivers and lookedfor fixes couldnt find any, so my soulution to the problem was disable the rudder part of the yoke anduse my back up joystick as a rudder (or you could use foot pedals) . Ive been flying like this for awhile now and I really got used to it and like it. I think there is something in that rudder part that isnt working right sogive that a try, other than that the yoke works great
85386
I didn't, it could be the motor is bad, or has the bearings over packed with lubricant. I would contact Air King/Lasko for further information and possible replacement motor or unit return.
1110654
I would also suspect defective. I can't remember anything about the setup that I would suspect could lead to squeaking. If anything, I think improper set up would lead to an unbalanced swing or poor range of motion but not squeaking. Have you tried to turn the motor on without the other parts attached? If it still makes the sound that would help confirm a defective motor.
1217515
Just doing some speculating here . . . but do you have a way to determine whether the problem is with the motor or with the controller? Beyond that, I wouldn't have a clue. Good luck.
1548565
I would look at it closely to see where it is connected and what is broken or loose. FYI, I was unhappy with this helicopter; it does NOT maneuver well and I have owned many other different brand of helicopters. Good luck!