Kevin wrote: > > Is the "defrost only" mode a failure mode of the servo, so it's worth me > trying the junkyard one, or is "defrost only" more likely something else, and > I should just replace the leaky hose? >
If you lose electric power to the servo, it should open the water valve and the defroster flaps. If there was no vacuum in the system, the defrost flaps would open. Your failure could be a fuse, the servo, the pushbutton array....