I need a heater control vacuum line diagram

a Volvo (must we guess"?) 2010 xc 60???? no air jumper-ed too?
if yes controls bad.
but with all blend door motors dead, air will flow.
there is no blower blocking door/damper ( but Filter)?
no air flows? means what?
hot air?
cold air?
either?
or no ambient air flows. or all.above.?

most cars have at least 3 dampers
MODE (direction)
hot cold, manual control.
recir'/fresh.

case in point, if hot core and AC core are dead
and blower spins you still get ambient cab air flow or fresh.
cab filter clogged up.
I need more facts to know what tests to do.

https://eautorepair.net/Marketing/Default.asp

Yes, or the resistor.

IT could be one of several things: possible the blower fan motor is bad; or the valve that lets the hot water in from the engine to the heater core is not opening; or the door that lets the air flow past the heater core and onward to your vents is not opening. All these are controlled by your heater switch, via relays and vacuum lines. If the blower motor works well when you put power to it directly, but not when it is hooked to the car, a connection in the switch or a relay may be bad. if you get little or no effort from the blower motor when you hook it directly to a good battery, it's the blower motor itself gone bad. If you get airflow but not heat, it's the device which diverts the hot water into the heater core. and if its the door to let air flow over the heater core, it could be a relay, a vacuum hose or the switch.

check to see if there is plenty of antifreeze in radiator , may have a air bubble in system .

CHECK SEE IF HEATER BLOWER MOTOR WORKING, REMOVE HEATER BLOWER MOTOR HOT WIRE HEATER BLOWER MOTOR SEE IF BLOWER MOTOR WORKING BLOWER MOTOR FAULTY OR YOU HAVE FAULTY WIRING AT BLOWER MOTOR AND RESISTOR.

There are several reasons why your car's heater may be blowing cold air, instead of heat. It is important to understand how the heater works in your car before you can begin to try to diagnose why it is not working. First, there is NOT an electric heater element in the heater system in automobiles, like in portable heaters used in the home. The part that transfers heat into the passenger compartment is called a heater core. A heater core can be thought of as a miniature radiator. The car engine's coolant flows through the heater core while the fan (also called a blower), blows air through the heater core fins. When air blows through the heater core fins, it is warmed, therefore warming the passenger compartment.
Start by checking the coolant. As we already said coolant is what warms the heater core. So if the coolant is low, there may not be a sufficient amount of warmth to transfer heat to the air in the passenger compartment. Since it 's cold outside, low coolant may not effect the operating temperature of the engine significantly, so you won't be alerted to a coolant problem by the temperature gage on the instrument panel. Once the coolant is full, feel the heater hoses that go through the firewall. With the engine at normal operating temperature, BOTH of the heater hoses should be hot to the touch. If only one is hot, this indicates there is is a blockage in the heater core or there is air trapped in the heater core. Using a Lisle coolant funnel is helpful in purging the air from the cooling system. If the coolant is really brown, has been neglected, or if "stop leak" has been used at some point, the heater core could be stopped up. The blockage can sometimes be unstopped by removing the heater hoses and using a garden hose with a sprayer to flush the heater core out. If neither of the hoses are hot to the touch, there could also be a malfunctioning heater control valve, if used on the model you're working on. Check for presence of a heater control valve by following the heater hoses back to the engine. Sometimes, a vacuum line could have a break causing there to be no vacuum to operate the valve. Also it should be noted that if this is your first winter with this car (and you're unfamiliar with the car's repair history), the previous owner could have by-passed the heater core because of a leak. When a heater core leaks, usually they wet the passenger side floorboard. The labor cost to change heater cores is usually expensive, so sometimes people will loop the heater hoses and by-pass a leaking heater core instead of repairing it properly.
Next check for proper airflow. After you're sure the heater core is getting hot water flow, read the following information. Doors within the heater case are either controlled by electric actuators, cables or vacuum motors. Adjust the heat control to both extremes while listening for movement of the blend door. With a cable operated heater door it's easiest to hear the door thump when it closes. If the door is not operating, find the door that controls the airflow across the heater core. If there is an electric motor that controls the door, tapping on it can sometimes make it work temporarily for testing purposes. A vacuum operated motor needs vacuum to work, so using a handheld vacuum pump for testing is usually recommended. If the vacuum motor does not hold vacuum, the diaphragm is leaking requiring replacement. To go deeper into diagnoses of the control head's function and diagnosis, specific vehicle repair manual information is needed. But hopefully the basics laid out in this article has helped to get you started on the right track.

blower motor resistor has been compromised.... replace as needed

first, check under te hood to see if the heater core water hoses are hot going in and coming out. If hot going in but cold coming out, water valve (if you have one) may not be working.
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Control System Outputs
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by vacuum control motors. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
For more information on the control components Section 412-04 .
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Air Management Doors
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by a vacuum control motor. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
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Section 412-04: Control Components - Climate Control 1997 F-150, F-250 Workshop Manual
REMOVAL AND INSTALLATION A/C Electronic Actuator
Removal

1. Remove the floor duct panel.
   • Remove the two plastic push pins (one each side) and release the expander clip.

1. Remove the RH instrument panel brace.
   1. Remove the lower nut.
   1. Remove the upper bolt.
   1. Remove the brace.

1. Remove the LH instrument panel lower nut and position brace out of the way.

1. Disconnect the vacuum harness from the vacuum actuator.

1. Remove the floor duct.
   1. Remove the two screws (one each side).
   1. Remove the floor duct.

1. Remove the panel/floor door vacuum control motor.
   1. Disconnect the vacuum line connector.
   1. Remove the two panel/floor door vacuum control motor screws.
   1. Slide the rod out of the door and remove the panel/floor door vacuum control motor.

1. Remove the electronic actuator.
   1. Disconnect the electrical connector.
   1. Remove the three screws.
   1. Pull down to release the actuator shaft and remove the electronic actuator.

OK, a vacuum controlled blend door is the problem.

REMOVAL & INSTALLATION


See Figure 1

Fig. Fig. 1: Plenum door vacuum motors

1. Disconnect the vacuum hose at the motor.
2. Remove the 2 motor attaching screws.
3. Rotate the assembly so that the slot in the bracket is parallel to the tee-shaped end of the door crank arm, and pull the motor and bracket off the crank arm.
4. Installation is the reverse of removal.

--- Search for other vacuum motors under the dash to see if the vacuum hoses have somehow deteriorated or become detached. --- Try to look up your vehicle on autozone.com for other vacuum motors under the 'heater' section of the 'chassis electrical' section of the 'repair guide' after selecting your 1996 Ford f250 crew cab vehicle. http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f8038ebd8

If none of the controls on the heater/AC panel are working, then you have a vacuum problem and the default position is the heater setting. There's a diagram of the vacuum system on a label on the front under the hood just in front of the radiator. It's a very simple system so don't be overwhelmed.
If the label is gone, go to your local library and check the Chilton's manual.
Your system must have vacuum to the switches for any kind of control. Be carefull of the small vacuum lines under the hood. Most at this age are very brittle.
Hope this helps, Rick.