What happens when you change you system from cool to heat and it still blows out cool air?
The furnance is not coming on.
13 people found this useful
COOLING SYSTEM OF WHAT ??????????????????????? Most auto parts stores sell cooling flushing kits. Get one follow the directions and it should take the air out of the system. You must remember that your heater is part of the cooling system as well as the cooling for your transmission.
Answer . \nI was having the same problem, and it turned out that the dryer was overheating and shutting itself off. The problem was that the exaust hose in the back was getting blocked. In my case, it blows up and out of the roof. The exaust on the roof had a screen cover that was collecting l…int. Check the path for your exaust hose.. Answer . \nHair dryers have a small temperature controlled fuse. If the hair dryer heats up too much, the fuse opens up and prevents a fire. Covering the air inlet, or clogging can cause the heat to increase too much.\n. \nWhile you could get the fuse replaced, hair dryers are so inexpensive that it makes them uneconomical to repair.. Answer . If you are talking about clothes dryer, the problem may also be in the elecrical connections. Since dryers draw a lot of current (somewhere around 20A) they can cause connections to heat up and become resistive. Also, while the heater element in the dryer runs off 220V, the motor usually runs off 110. So, if a phase has opened up, the heater could be getting no power, while the motor is getting power from the other phase and the neutral.\n. \nOr it may be that a connection on the dryer has gone bad, or that the heater simply burned out. If you can look at the dryer wiring and know what you are looking at, check it out with a multimeter. (For the love of fat kids and chocolate unplug it first!!) Dryers arn't that complex of machines. (MORE)
Answer . \nIT COULD BE THE THERMOSTAT, THE VEHICLE BEING LOW ON COOLANT, OR A MODE DOOR WITHIN THE DASH
If i changed thermostat and water pump in my 94 ford aerostar van and still no heat just cool air any ideas?
Answer . you should check to see that heater hoses are connected through the fire wall and they are connected to the heater core.
Your heater and air conditioner stopped cooling and heating the air all at once but the fan still blows strong Does anyone know what your problem details?
Answer . \nSounds like you have an internal heater box issue. Possibly one on the mode door motors quit or you have a broken door inside heater box. To access heater box, you have to remove entire dashboard assembly. This is not too simple of a task.
Air lock in cooling systems has became a problem in many autos in recent years because of there design,mainly the radiator is not the highest point in the cooling system.For that reason many manufacturers have put bleeders in the system, usually at the thermostats .The easiest way to bleed the syste…m is to raise the vehicle so the radiator is the highest point in the system.remove the cap and let the car run until the thermostat opens,this will burp the air out of the system,be careful of hot coolant and steam escaping the radiator.Then shut off and lower vehicle,and top off radiator and coolant tank. (MORE)
Heat Pump Troubleshooting . If the unit works in the heat mode, then the problem is usually located in the outdoor unit.
Keep the overflow tank filled to its FULL line. Find the highest point in the cooling system; open it very slightly. Sometimes the highest point is the radiator cap. Sometimes the highest point is at a hose clamp. Very rarely there is a bolt that is meant to be loosened to let air out of the cooling… system (example 1995 Mustang) You will hear air coming out. Keep filling the overflow tank. Then re-tighten the part that you opened. Also you will want to have the car's heater on HIGHEST/HOTTEST while doing this because the heater is connected to the cooling system. (MORE)
First, check the coolant level in the radiator. DO NOT open hot. Then decide if the a/c is on by looking at the compressor. An untrained eye will not know what to look for. Then you need to know if the temp door is working. The only step an untrained mechanic should do is check the radiator to insu…re it is full. There is a small radiator inside the car called a heater core. It acts as a heat exchanger, hot water flows thru it and then air is blown thru the fins removing latent heat to the air which is expelled thru your dash. If there is no water in the vehicle it wont work. (MORE)
Why is hot heat blowing from floor and cool heat is blowing from upper vents in 2000 ford expedition even after changing potentiometer and blend air door switch and is not very hot as before?
The most common failure with this model if for the blend door connection to break, leaving no control over regulation of heat. Check my answer to other questions on this forum for information on how to access and check the blend door. If the problem is regulating between defrost/vent/floor, this …is controlled by the mode door. This door is vacuum actuated and failures are usually a vacuum leak somewhere in the system. If the problem is strictly temperature control, I can almost guarantee that the problem is the blend door. This is common on this model and you will find that the dealer wants an arm and a leg to fix it. HeaterTreater has a cheap fix. (MORE)
If you can turn on the heater but only cold air comes out you should check the blend door. It controls the door to switch from cold air to hot. It sits directly behind the heater/AC controls. It is white square plastic piece (approx 3in x 5in half inch thick and has a plastic screw rod that attaches… to the heater/AC controls and they strip out. Hope this helps. . (MORE)
Why does my 1998 s-10 2.2 can turn the heat control knob to cool but still blows out hot air the switch is good?
Check your vacuum lines, this is what opens and closes the ducts.. I had the same problem with mine. I just got it fixed a few days ago. The problem with mine was the compressor was leaking. Also i had the lines replaced, because they were sucked pretty much flat. To fix mine it was about $700. Wis…h i would have known that before I got it fixed. (MORE)
The heater core could be burnt out. Make sure your antifreeze is full and your switches on the dash are working. When you move the switch from cool to warm you should be able to hear a difference. If you don't the door/flap may not be moving.
Remove the cap from the overflow bottle. Turn the heat on high andstart the car. Add coolant as needed. You may have to repeat heprocess several times to remove the air from the system.
In a single-stage system your air is either on or off. Meaning the system outputs a set amount of heat/air per hour, operating only at 100% capacity or off.. In a multistage system, your unit outputs for example at 40% power over an hour to maintain a constant temperature of 70F. When changed by th…e user it will boost power to 100% to change the temperature, then reduce power again to 40% to maintain the newly selected temperature. Multistage systems are generally more energy efficient because of this feature. (MORE)
Most likely. You just need add Freon. Real easy an cheap fix. If your Freon is full and your AC still not working. Probably gonna be your AC pump. That's not a cheap fix.
When heated it get larger and when you freeze it the matter gets smaller with an exeption to ice
If it has an electric fan, it could be malfunctioning.Or it could be the thermostat.lastly ,it could be a leaky or blown headgasket.
An air cooled system uses cooling fins, in which air is either blown past these fins by a flywheel or a cooling fan, this air that is blown into these fins carries residual heat away from the cylinder jug.
Try the thermostat, it may have accidentally been reset to a low temperature. Or the furnace (boiler) that supplies the heat may not be working. Or someone may have turned a valve to cut of the supply of heat to that part of the system. Withou tknowing whether you live in an apartment or your own ho…use that's the best that I can suggest. (MORE)
For a Windstar, a common problem is a failed temperature blend door motor - actuator. See "Related Questions" below
The burners are not igniting for some reason. Could be a few different things, call a plumber.
\nWhen it heats up it expands and rises, when it cools, it contracts and falls.
You wash it out and rinse is with hot water after that you put it in the dishwasher then you let it dry for at least 24 hours after that clean the electrical cables then after 48 hours you are ready to use it.
Depends on the container of the "air particles" and what you mean by "what happens." If it is inside a container that can not expand, then the pressure increases. If it is inside a container that can expand (or is just atmospheric air) then the volume increases. (Pressure * Volume = n * R * chang…e in temperature) On the atomic level, the atoms or molecules (depending on the gas) begin to move more quickly as their kinetic energy increases. (MORE)
The most obvious reason is that the gas, which is responsible for the cooling effect has leaked out of the tubes. So call the nearest mechanic for attending the gas leakage and re-filling of the gas. If gas leaks again and again, get the complete cooling coil replaced.
There are 2 major characteristics that change when air is heated orcooled. These characteristics are the speed of the molecules andthe pressure.
so its not blowing at all anymore, as in no air at all? if tahts the case then how do you know its still cold. if it isn't blowing as well you may just need to change out your filter, just like in a house all cars(most)have a air conditioner filter. if its not blowing anymore at all it sounds like y…our compressor or your whole dam motor went out, take it to shop. (MORE)
when air(gas) is cooled(thermal energy is removed) its molecules slow down and it becomes a liquid(condensation) when air(gas) is heated(thermal energy is added) its molecules speed up, but it wont change into a different phase until gas is heated to a temperature above 10,000 C, which removes elec…trons from the atoms (MORE)
Depends on what sort of structure those molecules are in and which molecules they are. It's relevent because certain molecular and intermolecular structures and arrangements are more stable than others, making some remain put where as others will gain enough energy to release themselves. Electron…ic orbitals have everything to do with it. (MORE)
The movement of air particles will increase as they are heated up.The movement will decrease as they are cooled down.
sounds like t stat is programmed wrong, reversing valve coil is bad or reversing valve is stuck.
Could be a clogged heater core. Just because it doesn't leak doesn't mean it's working right.
rear air unit has a air blending door solenoid, and is probably out. or broken making a clicking noise
If it`s a heat pump, they do that, heat is not instantaneous with them. If it`s a furnace the fan/limit switch or fan delay timer whichever you have, needs to be adjusted.
It depends on how high you heat or cool the air. The density andentropy as functions of temprature would be affected mostly. Byheating the air density decreases and entropy increases.
the amount of hot gas is not enough to change the form of all the liquids trap on it. By your question, I cannot tell of which component of the system you are talking about? It sounds like you are talking about (for a heat pump system) the outdoor coil? If that is what you are talking about, I wou…ld say that you have either a failed circuit board (most machines reverse the flow of refrigerant and stop the outdoor fan during defrost cycle). I would say that your reversing valve is either not energizing or is defective or your circuit board. (MORE)
When a metal or any other solid, liquid, or gas is heated they expand. This happens because the molecules that make these substances start to move or "shake" more than they already do. If they are heated to a certain point (depending on the substance) they will shake enough to break free. if you had… a solid it will melt into a liquid, and a liquid into a gas. (MORE)
Metal that is heated will expand(meaning to become larger), and metal contracts(shrinks) when it is cooled. I think that it is because when it is heated, the molecules spread apart(sort of like when you heat water), and the opposite happens when it is cooled.
The rate of cooling is proportional to the excess of temperature between the temperature of the body and the temperature of the surroundings.
Air can get into the cooling system when the coolant is replaced as either part of a maintenance schedule or when the system must be drained for a repair. When the coolant is replaced the coolant system must be "burped" to get any air out of the coolant lines. There are various ways to do this depen…dant upon the type of vehicle. A repair manual for your vehicle will describe the proper technique. (MORE)
yes they can. i recently had to get mine cleaned because of a nest they had built on the top just inside we could not use our central air without getting bees in the house so we just used a window air conditioner over the summer.
Heated molecules causes molecules to bounce into each other separating them. As molecules separate, their density, the amount of matter found in a given volume or space, decreases. Cooled molecules are not that loose and start to get packed together if it gets frozen. -twocute
Volume is affected. For example, gases require more volume at higher temperatures than lower ones.
As the air cools some of it condenses into water. The drain for the condensation may be plugged up with crud.
Why does the air bow cool air after you have change the thermostat and also had the coolant system flushed and It will not blow hot air?
My first suspect would be that you either bought a defective thermostat, or you did something wrong when you installed it. This is assuming that the problem didn't begin until after you replaced the thermostat. If it was a problem which existed prior, I'd take a look at the heater core. It'll be …in the same compartment in the duct system as your air conditioning evaporator, usually placed by the vent next to the passenger door. Yes, unfortunately this requires disassembling the dash. Before you go this route, you may want to ensure that there isn't any blockage in your upper and lower heater hoses. (MORE)
Could be a number of reasons... it could be low on refrigerant (and the reason for that could be for a number of reasons), there may be a blockage in the system, the compressor clutch may not be cycling, airflow through the condenser fins may be disrupted, it could be a problem with the blend door..…. the list goes on and on. (MORE)
Water is heated we get boiling solution (water is evaporated). Water is cooled we get ice form(water is freezing).
You don't need to, as the coolant circulates, any trapped air will eventually make its way to the expansion tank and out of the system.
Heat is a form of energy. When molecules are heated, they are infused with greater energy and move faster. The faster the molecules move, the farther away from one another they get. This results in a phase change (provided enough energy is applied) from a solid, to a liquid, to a gas. The opposite h…appens when you remove energy from molecules: they slow down. If enough energy is removed, the phase changes from a gas, to a liquid to a solid. (MORE)