Posted June 12, 2024Jun 12 I have the 8043 that had been store for nearly 5+ years, 2 years ago i put on it new batteries and try to run it but it started to move until loses power and stops and the motor started wining, so i put it apart and store it, 2 days ago i tried to build the model b of this set but had the same problem, when i use one motor it works fine but when i use both, tracks or actuators, it slow down and stops and start wining, i dont know what is the problem, me and a friend have tested the components and disasemble to see if something is wrong, but stil not see a solution to this problem. i post it on reddit whit a video, https://www.reddit.com/r/lego/comments/1dc1xqy/comment/l7w2e5r/?context=3 (sound on to hear the noise).
June 13, 2024Jun 13 8 hours ago, zerolvera said: I have the 8043 that had been store for nearly 5+ years, 2 years ago i put on it new batteries and try to run it but it started to move until loses power and stops and the motor started wining, so i put it apart and store it, 2 days ago i tried to build the model b of this set but had the same problem, when i use one motor it works fine but when i use both, tracks or actuators, it slow down and stops and start wining, i dont know what is the problem, me and a friend have tested the components and disasemble to see if something is wrong, but stil not see a solution to this problem. i post it on reddit whit a video, https://www.reddit.com/r/lego/comments/1dc1xqy/comment/l7w2e5r/?context=3 (sound on to hear the noise). So the issue appears to affect motors connected to both IR receivers, is that correct? If so, I think it would be unlikely that multiple motors, remotes or receivers have the exact same malfunction. The only part common to all these is the battery box, so I would start by looking at that first. Do you have a second one to swap it out with? After many years of storage it could also be the case that you have dirty/oxidised metal contacts on all your electric plugs. Those metal pins are much smaller and harder to clean than the previous, larger 9v metal contacts, so try some electrical contact cleaner spray. It evaporates quite quickly so spray some on and try to plug and unplug each electrical connection a few times while it's still wet with contact cleaner. Then do a final rinse spray with the cleaner and wipe away any residue. Do this with each electrical contact individually and try to avoid overspray on the model itself.
June 14, 2024Jun 14 Author I clean the contacts, theres no dirty or oxide at all, and i assuming that the battery box is the issue, but i dont have atnother to test it, i will try to get one for test, i tried to connect 2 motors directly to the battery box and happened the same, but no whining sound from the motors.
June 14, 2024Jun 14 Do you have PF Lights? If so, connect them directly to the battery box and watch the fade out If they do, this means battery or battery box is at fault. If you don't have lights observe the small light on the box itself. If you cleaned all contacts (including those inside box) them most likely the termal protection inside is gone. You can bypass it. It's safety measure "required" byt not really necessary since each motor has it's own.
June 27, 2024Jun 27 100% sounds like the battery box. Are you 100% sure the batteries are in the correct way?
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