Re: Kärcher WV75 Plus window vac that died.
OK, thanks for the comments.
Chris, the psu was connected instead of the battery, but only once I had cleared the corrosion.
The original grease had the yellow/brown colour but seemed quite thick. If it goes faulty again in a few years, I will indeed try Vaseline. I don't think I have any silicone grease these days since I had started using white heatsink compound years ago. I used to have a tube of MS4, but not been seen for years now.
When I first dismantled it I hadn't seen the corrosion on the pcb. I checked battery voltage first and then the motor for continuity and by rotating it a little it generated a small voltage. Then I progressed to the pcb and saw the corrosion.
Rob
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