bob_barthelow
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- Apr 17, 2015
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- 6
My CT Sys vac was overheating and quit. Is there thermal overload device somewhere that is checkable. Or is it just a repair or replace issue
ct sys vac failed
- Thread starter bob_barthelow
- Start date
Maybe a dumb Q, but have you since tried to restart it: i.e. given it time to cool down & reset? I suspect one of the reasons it's missing a variable speed control is that it needs max airflow for cooling, hence the bypass "cycling" that occurs from having its extraction airflow restricted.
six-point socket II
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- Jun 26, 2016
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Hi!
Yes, to what aloysius said. Try re-starting if you didn't already.
If it really quit/ is "dead" now, that is obviously very unfortunate and I'm sorry for the trouble it is causing.
Would you elaborate a little bit more on how the overheating happened? I'm interested in hearing more about it. Mainly because I have used mine for hours on end, tool plugged in and inside a stack of Systainers - even at German summer temperatures outside. So I'm curious to know what kind of use we are talking about and in what environment/temperatures that made it quit.
Thanks in advance if you feel like elaborating a bit more!
Kind regards,
Oliver
Yes, to what aloysius said. Try re-starting if you didn't already.
If it really quit/ is "dead" now, that is obviously very unfortunate and I'm sorry for the trouble it is causing.
Would you elaborate a little bit more on how the overheating happened? I'm interested in hearing more about it. Mainly because I have used mine for hours on end, tool plugged in and inside a stack of Systainers - even at German summer temperatures outside. So I'm curious to know what kind of use we are talking about and in what environment/temperatures that made it quit.
Thanks in advance if you feel like elaborating a bit more!
Kind regards,
Oliver
Almost all quality commercial & industrial extractors have bypass cooling. The impeller turbine has two inlets. One "strong" one that sucks through the hose, & another, independent onespecifically for motor cooling.
Irrespective of hose/tool blockage or restriction, or even having the bag overfilled, motor cooling continues unabated. I believe the little Festool is designed more like a domestic vac in that there's no independent cooling air intake or exhaust, meaning that the amount of cooling air is directly determined by airflow through the hose & tool.
If the vac is overheating, then there's insufficient airflow. Not surprising it shut down, really. Hopefully before any more significant damage was done. If it doesn't restart, then send it in for service.
Irrespective of hose/tool blockage or restriction, or even having the bag overfilled, motor cooling continues unabated. I believe the little Festool is designed more like a domestic vac in that there's no independent cooling air intake or exhaust, meaning that the amount of cooling air is directly determined by airflow through the hose & tool.
If the vac is overheating, then there's insufficient airflow. Not surprising it shut down, really. Hopefully before any more significant damage was done. If it doesn't restart, then send it in for service.
imaginarynumber
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- Dec 18, 2009
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- 82
I have only ever taken the old CT22 vacs apart. Those ones use Nilfisk motors and do indeed have an overheat sensor on them.
The only time I have had a Festool dust extractor shut down because of overheating was with my older model Midi. It was sitting right next to a wall and I guess the proximity affected the path of the warm exhaust air. From memory it started working again after 15 mins.
The CT SYS is an odd beast though, it seems to have some kind off baffle that kicks in (seemingly) randomly, presumably to either de-stress the motor or to aide cooling. The noise differential used to worry me until someone here assured me that it is normal.
Have you checked the fuse or continuity, is the "kettle lead" still plugged in? If you don't have any way of testing the fuse, unplug a desktop computer lead (or kettle lead) and plug that in to the CT SYS.
The only time I have had a Festool dust extractor shut down because of overheating was with my older model Midi. It was sitting right next to a wall and I guess the proximity affected the path of the warm exhaust air. From memory it started working again after 15 mins.
The CT SYS is an odd beast though, it seems to have some kind off baffle that kicks in (seemingly) randomly, presumably to either de-stress the motor or to aide cooling. The noise differential used to worry me until someone here assured me that it is normal.
Have you checked the fuse or continuity, is the "kettle lead" still plugged in? If you don't have any way of testing the fuse, unplug a desktop computer lead (or kettle lead) and plug that in to the CT SYS.
