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If it's blowing intake-temperature air, either you've got the fan alone switched on or the heating part isn't working for some reason. If it's a gas furnace, the pilot light may have gone out, or the gas may be shut off somewhere (at the furnace itself, at the emergency shutoff for the house, or possibly at the main inlet).
If it's blowing actually COLD air (colder than intake), then you've probably got central air and you've somehow managed to turn on the air conditioner.
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'why does the fan still run on the unit after it cycles is over. But it is blowing hot air not cold?
why does the fan still run on the unit after it cycles is over. but it is blowing hot air not cold
Why does a gas furnace only blow cold air?
Because you set it that way
Why does the fan on my warm air furnace blow cold air?
Either the fan is set at too high a speed or the burner did not light.
Does keeping fan on all the time better for cost in air conditioning?
Hard to say it really depends on your home. One thing it will do if you have a filtration system in your furnace will ensure you have cleaner air blowing through the house.
Why does the home gas furnace blow cold air?
Perhaps the pilot light is out and the gas has been turned off at the valve.
Why is my furnace blowing cold air?
What type of furnace do you have?electric
Why is my furnace only blowing cold air?
Your furnace may only be blowing cold air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition control, or low fuel supply. It is best to consult a professional HVAC technician to diagnose and fix the problem.
Why is cold air blowing out when heater is on?
It could be a thermocoupler, happened to my furnace in middle of night a few years ago.
Ruud furnace only blows cold air no heat?
ruud furnace only blows cold air, no heat
Lennox g50uhx furnace and it keeps blowing cold air you have turned the switch on and off how should you fix it?
You need to call a qualified heating contractor for service.
Why a cold air return is needed in a furnace?
A cold air return is similar to a return air grille, which is needed for air to travel to the furnace to be filtered, heated OR cooled and then recirculated.
What is wrong if a Ruud furnace has cold air coming out of the furnace filter area?
Is there a flame in the furnace. Precisely where is this air coming from and how strong is it?
Do you need a cold air return on your furnace?
YES! If you do not have a cold air return on your furnace, you will have much higher heating bills as you will not be circulating the cold air from your home back to the furmace to be heated again.
Why does Air conditioner blowing cold air from top not bottom?
More than likely the air handler or furnace is upflow. In other words air is drawn through the bottom of the unit(the return) which is unconditioned air and blown out through the top of the unit(the supply), which is conditioned air.
Why does my 2001 dodge air conditioning not blow cold?
if its blowing, but not blowing cold its low on coolant. it takes r134a.
Why is the heat and air system only working on emergency heat?
when running the heat-pump the air blowing from the heat ducts is not hot ( it's to cold for the heat-pump). you have a main furnace and it won't turn on ( is thermostat selected for this source), ( is the power switch for main furnace on ), ( is fuse for this furnace good). If these are good (check thermostat wiring at thermostat, and transformer).
Where is air filter located on central ac?
it's the same as the furnace filter. the air conditioner runs through the furnace to push he cold air. change your furnace filter and you are changing the air filter on the air conditioner
