Why do the Eco Numatic vacuums' PCB's burn out?

[parwaz786]

As title. I dont know the cause, I have heardrandom stff like "when it gets dusty, it stops working, or when "you use it on low mode too much." And I'm like WTH
Any help would be appreciated.
PS, another Numatic question is when did the PN socket stop being included and why?
Cheers guys

 

[alexhoovers94]

This was an issue in the 2009 to 2013 Numatic Autosave Henry's as the circuit board is (well was) facing the exhaust air which got it covered in carbon dust which in turn caused it to short out.
They switched the board around now so the circuit board is not in the exhaust air path...The problem shouldn't re accure.

 

[parwaz786]

Thank you so much for the very helpful and fast response mate

 

[alexhoovers94]

They stopped putting the power nozzel socket on standard Henry's when the 1999-2003 variant came about it had the port where the power nozzle socket would be but it was blanked off with a plastic piece. They stopped putting them on as they were never used and if so rarely, a cost cutting thing too I suspect.

 

[parwaz786]

Very helpful info there, Thanks!