OES Genuine Air Conditioning and Heater Control for select

however i stripped and cleaned all the components and resealed the solenoid assembly base with silicone grease, everything was very clean and no sign of deterioration at all, HOWEVER, and this is my question, everything was full of water, yes... Hello everyone, and especially parrot of doom, who i must congratulate on his very good sticky on the servicing of the duo valve. either way the valves now operate ok. i would love to know if the water is meant to be there, all be it this would not make sense to me. i have attached the link to parrot of dooms sticky.

When I disengage the a/c temp control switch , the unit does not switch over to heat and the heater blower does not run. I have a 1976 Mercedes w115 w/ 2nd version climate control. The climate control system that I use for it is top down summer top up winter. I am confident that the vacumn controlled flaps are functioning properly as the air delivery seems consistant with specification of the unit. The only way that I can get heat in the car is to run at speed , thus allowing ram air to provide the heat absent assistance from the non functioning heater switch. How can I short the heater blower to the battery to check the condition of the blower motor.