What a fantastic brilliant workshop download.
I like your description of possible faults which would lead to this cleaning operation, and the information on the Bosch one.
But not only that, but recommended cleaning products.
There have been so many posts suggesting every solvent under the sun, clearly some are more suitable than others.
To be able to go to a local Maplins and buy some... great.
This contact cleaner solvent is also good for... wait for it...
Cleaning contacts... on switches and relays,if you have access.
It leaves no deposit, and I have been using this or similar in many applications in the electronics industry. (More so after Genclean was banned
![Eek! :eek: :eek:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
).
You have my vote on this one 10/10 :thumb2