greatwest bclass camper van test button

[jeffy]

I have a 1994 great west classic sport van. My test button for the water, gas and holding tank does not work. it worked before but this time we took it camping it doesnt light up. The other buttons on the panel work. Any help?

[markopolo]

There's a good chance that the systems monitor panel was made by KIB.
Take a look at their troubleshooting guides here: http://www.kibenterprises.com/troubleshoot.html