Contact spray for control unit

Essgeebee

Finding my (electric) wheels
Apr 19, 2020
18
3
I occasionally have problems with my Xion control unit and the other day I almost got stranded a long way from home. I got the triangle with a 'C' in the middle indicating a communication fault. This happens sporadically without any apparent reason. The manual mentions using contact spray on the control unit connectors when problems occur. Has anyone had a similar problem and what contact spray would you recommend?
 

Darren Hayward

Pedelecer
Mar 25, 2015
93
47
61
WD40 electrical contact cleaner. I had a couple of trips recently where I had to take the display on and off a few times because the bike kept powering down before I could even get on it. I cleaned the contacts and it cured the problem.
I also use the same spray on the battery connections, both bike and battery.

Darren

Note - WD40 is a brand name. I don't mean WD40 penetrating spray, it is the electrical contact cleaner you want.
 

awol

Esteemed Pedelecer
Sep 4, 2013
1,216
374
I've used Holts from eurocarparts and that seems ok. As long as they leave no residue they are probably all similar.
 

Essgeebee

Finding my (electric) wheels
Apr 19, 2020
18
3
Thank you Darren and awol. I've ordered WD40 contact cleaner. Hopefully fewer problems with my control unit after using it.