The vents are controlled by vaccuum lines. If a vent stops working the two mail causes are, hole in a vaccuum line, or broken or bent control arm. (On the side of the duct controller, usually under the middle of the dash.
It sounds like your air flow diverter is stuck on defrost. Basically it is a little door that diverts the air fom vent to defrost to feet. It could be either the heater control valve, or te temperature selecter cable is broke.
cooling fan relay short or bypassed or defrost or ac selector on
Manual defrost is the instructions for you to manually defrost your freezer and automatic defrost is saying the freezer defrost on it's own.
Check the vac line it runs under the battery to a ball on the drivers side fender up front it could be chaffed .
WHERE CAN I FIND part number p0113 IAT CICUIT HIGH INPUT FOR 2000 CAVALIER
i had to defrost the iced chicken.
It is defrost.
We just bought one from Lowes. You do not have to manual defrost it. It does a automatic defrost every 24 hours, from the time you first powered it up.
You most likely have a bad vacuum hose in the engine compartment or a bad control switch.
That's when you disable the fridges auto defrost and do it when you want it.
does fan door motorized or on a vaccuum line when you switch from AC to defrost?
If you feel no air blowing at all (when you are not moving) then your fan is not blowing. If it is blowing air, and it is cold, when the heater is on, then most probably your heater core is leaking, or is clogged. These are easily replaceable and go bad all the time in older cars.