> Curt Raymond wrote: > You could wire a light to the monovalve and watch for it's > activity. Power out I think means monovalve open which means > heat on.
> Even if I've got the state backwards (light on versus out) if > the monovalve is always powered to a constant state while > having alternating hot and cold it should point to a bad > monovalve. Nope. The monovalve modulates the heat by turning on and off. Although, if it's in cool-the-cabin mode, maybe it should stay water-off - which is power-on. -- Philip _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com