steves1977uk wrote:Could be oxidisation in the yellow bus plugs. De-oxit works wonders on dirty pins. Check the male socket on the PM and joystick for manky looking pins, and any others like the ISM.
Steve
Burgerman wrote:Humans see causes and patterns where non exist. The chances of different profiles being the cause of the problem is extremely unlikely. Far more likely that there is a loose connection, oxydised crimp (dont crimp!) loose battery terminal or connector on the power module. Bad bus cable. Bad connection to or bad breaker. Heat causes the power module to roll back so you have little torque. Not a black screen and switch off. I doubt its got a thing to do with heat or profiles.
fishinjunky wrote:Yea I over heated my power module today. I have a waterproof cover on it but it got way to hot I couldn't go up any hills at all but and your right no black screen or shutting off just no torque. I had to remove the waterproof cover
Surely you must've seen the air vents on the PM???
steves1977uk wrote:fishinjunky wrote:Yea I over heated my power module today. I have a waterproof cover on it but it got way to hot I couldn't go up any hills at all but and your right no black screen or shutting off just no torque. I had to remove the waterproof cover
Surely you must've seen the air vents on the PM??? Where's it located to be able to get wet?
On my modded chair the PM sits on top of the battery box under the seat, so no chance in getting wet in the rain. And plenty of airflow around it.
Steve
Burgerman wrote:Surely you must've seen the air vents on the PM???
No. Where?
Only where the connectors go. That might leak.
viewtopic.php?f=2&t=8857 pictures...
F55 wrote:To be honest the shock of just holding in the chair was my first concern.
F55 wrote:Damn, unfortunately it wasn't the case despite travelling much further than before although that just made it worse to call for the back up chair to be sent out! Sitting stationary in a village for 20 minutes isn't my idea of fun. Anyway, it was pushed home and sits in the garage waiting for when I can muster up the love for it again.
As I lurched forward violently and very nearly fell out I thought I saw a message come up on the controller. It said something like " 1 high battery" or am I making it up? To be honest the shock of just holding in the chair was my first concern.
foghornleghorn wrote:Seatbelt. Seatbelt. Seatbelt. Seatbelt. Seatbelt!
foghornleghorn wrote:- Overheating I find the chair gets slower and slower until it goes on strike and wants you to sit under a tree for a while to let it cool down. Once it's cooled, back to normal driving. Also to consider- I also managed to overheat a chair one day while having a rest parked with the exposed brain cooking in the midsummer sun
- Sudden instant stopping and attempting to throw you out the front of the chair for me was when I had a loose electrical connection. The parking brakes that go on and off with a loud click are usually only there to hold you still once stopped. They hold tight when there is no power, and release when you give them electricity at 12v or 24v depending on the type. Take away that brake releasing electricity even for a fraction of a second while driving and they lock on instantly, stopping you dead. If it is just an intermittent bad connection it can happen at any time and be perfectly happy afterwards until the next time it randomly decides to kill you.
- hunt for loose connections, or a lead with broken internal wire(s)
- the only thing I'm wondering other than that is the "1 high battery" message you think you saw. If brakes experience a low voltage rather than the extreme of 0v maybe that will stop them too? Could be 24v brakes suddenly seeing only 12v killed you if one of your batteries is on the way out.
Burgerman wrote:
Humans see causes and patterns where non exist. (heat, different profiles etc).
The chances of different profiles being the cause of the problem is extremely unlikely. Far more likely that there is a loose connection, oxydised crimp (dont crimp!) loose battery terminal or connector on the power module. I doubt its got a thing to do with heat or profiles.
LOGS 2. The only way to get a high battery error, is if the chair is slowing as it will with a battery disconnection, and so REGENERATING power. And a bad connection means it cant dump this energy to the battery. So regen voltage spikes high. This can take out the power mosfets...
Burgerman wrote:I presume she was dead? Are you allowed to do that? You dont have to bury them. You can just move them out and get a new younger fitter one thats easier on the eye. Same stress. But at least its worth it.
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