Bosch Athlet Cleaner
Posted: Sat Nov 14, 2020 11:35 am
Hello all; I’m new to this forum and am looking for some direction.
We have a Bosch Athlet Vacuum Cleaner, a lightweight cordless devices. It meets our needs as my wife carries some weakness from surgery over the years.
I replaced the handle, from a non-working unit on ebay. Done.
Being a mean Scot, I started on the non-working part of the ebay machine. It runs at full power and stops suddenly after 2 min. I stripped it down (a pain, 2 youtube videos). Each cell gives 4v plus and the overall pack 29.2v. I was expecting the pack to be faulty, I have replaced cells in drills. Cleaned everything, the contacts with alcohol, dust filters & motherboard, checked all connections and tighten any looseness, split the motor & cleaned the stator, the bearing, etc. Assembled and checked: no change.
I tried a couple of trials;
• Ran the machine at first and then second speed. Machine runs without bother. But as soon as switched to third speed, “Turbo”, machine stops suddenly.
• Ran straight to Turbo from cold. Runs for approx. two minutes and then stops suddenly.
• The stop is sudden, there is no fade.
• The charge indicator remains on but drops down minimum Level.
• Machine will not restart at first but after several minutes in off position will restart and run as above.
• There are no signs/ smell of burning or any heat or any funny noises.
• When running, the motor seems to have full mechanical power.
So, I am guessing there is some overload/thermal protection device fitted (or maybe it doesn’t know it has a full charge?). I can’t see anything on the motor but I may not have recognized it. I have looked at the motherboard and can’t see any cracks/burning. And that is about the limit of my electric/electronic knowledge.
Any suggestions/ pointers welcome. Not sure these photos are going across correctly!
We have a Bosch Athlet Vacuum Cleaner, a lightweight cordless devices. It meets our needs as my wife carries some weakness from surgery over the years.
I replaced the handle, from a non-working unit on ebay. Done.
Being a mean Scot, I started on the non-working part of the ebay machine. It runs at full power and stops suddenly after 2 min. I stripped it down (a pain, 2 youtube videos). Each cell gives 4v plus and the overall pack 29.2v. I was expecting the pack to be faulty, I have replaced cells in drills. Cleaned everything, the contacts with alcohol, dust filters & motherboard, checked all connections and tighten any looseness, split the motor & cleaned the stator, the bearing, etc. Assembled and checked: no change.
I tried a couple of trials;
• Ran the machine at first and then second speed. Machine runs without bother. But as soon as switched to third speed, “Turbo”, machine stops suddenly.
• Ran straight to Turbo from cold. Runs for approx. two minutes and then stops suddenly.
• The stop is sudden, there is no fade.
• The charge indicator remains on but drops down minimum Level.
• Machine will not restart at first but after several minutes in off position will restart and run as above.
• There are no signs/ smell of burning or any heat or any funny noises.
• When running, the motor seems to have full mechanical power.
So, I am guessing there is some overload/thermal protection device fitted (or maybe it doesn’t know it has a full charge?). I can’t see anything on the motor but I may not have recognized it. I have looked at the motherboard and can’t see any cracks/burning. And that is about the limit of my electric/electronic knowledge.
Any suggestions/ pointers welcome. Not sure these photos are going across correctly!