The unit won’t work (heating element will not turn on, and the pump wont engage) unless the orange wire is connected to a metal tab located on the left side of the reservoir support panel.
This picture shows the tab as it appears when the plastic reservoir is removed. The tab is visible on the top of the support structure.
This picture shows the orange wire that needs to be connected to the tab on the support structure. This is how it looks when you open the top up and look down.
This picture shows the proper connection that will allow the unit to work normally.
Please note the above information is subject to copyright. It cannot be published by any means without the expressed written consent of 1st-line Equipment, LLC.