My air conditioning blows hot air. Won't accept

lots of possibilitys, 1. blown fuse
2. low on refrigerant, will not let the pully to engage
3 nothing bad about fords, but they use plastic for air dams, inside of the hot and cold deck
4. try to change from cold to hot if it does not change refer to 3.
hope this helps

replace any soft hoses.
collapsed hoses cause water flow constriction
.that increases temp fast

to bleed air out of the system . if no air bleeder as such
with heater on full .-engine running
loosen the bypass pipe for the closed thermostat till only coolant flows no air bubbles
check if
the engine cooling fan spinning fast enough
the water pump in good condition
the interior directional flaps motors or actuators working

The most common cause for an AC blowing hot air is the system is low on refrigerant. A small leak will eventually lose refrigerant until the compressor eventually will shut down. Most compressors require a minimum of 20psi to engage and chill the air. Most certified service stations can diagnose and recharge most systems for $100-150 depending on where the leak is. There are do it yourself kits available at most auto parts stores that come complete with leak detector (R-134A with dye to show where leaks are) compressor oil, and a recharge hose.

it could be your just low on coolant. thats where i would start first. think positive

ck front vacc lines defrost vent is default sounds like no vacc on door

Headgasket may be blown. Try using the Goop found at local auto centre "Liquid Coolant Sealant"
Issue you are having is carbons leaking into the coolant tank is causing additional "BOIL" almost like blowing extremely hot air into water... Causing it to boil.
Your A/C is alone part of your Blower Fan, a completely different element to the cooling system, and you will need to recharge your AC
Try the goop. It really does work!!

Fuse Box Diagram

Circuit Schematic

I trust that these are what you are looking for, they are screen captures of the requested information right from Ford.

What is on the #1 fuse circuit? What ever it is is bad, or shorted out in the wiring.

I know from experience that if the coolant is to low ( not just the freon levels in the compresor but the antifreeze/coolant level as well) the AC system will not cool and will blow hot. Check the coolant Antifreeze and freon levels, even with the Coolant being a little low my 1998 Ford E150 Van will blow hot. After you have ruled out of these possibilities and the chance it is the thermostat most likely the problem is what Ford calls the "Flap" it controls the air flow through the vent system when you switch from Heat to AC. When the Flap is working it closes off one systems air flow so as to not interfere with the current climate selection.

depends on condition of engine.What you want to look for is a large difference between related cyls. If all are with in 10-15 percent of each other your problem may be some where else.