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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.
What else can I help you with?
'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 does my furnace blow cold air and then hot air intermittently?
Your furnace may be blowing cold air and then hot air intermittently due to a malfunctioning thermostat, a clogged air filter, or issues with the furnace's ignition system. It is recommended to have a professional HVAC technician inspect and repair the furnace to resolve the issue.
Why is my furnace just blowing cold air?
Your furnace may be blowing cold air due to issues such as a malfunctioning thermostat, a clogged air filter, or a problem with the pilot light or ignition system. It is recommended to check these components and contact a professional HVAC technician for further assistance.
Why is my gas furnace blowing cold air instead of warm air?
Your gas furnace may be blowing cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition system, or a faulty heating element. It is recommended to have a professional HVAC technician inspect and repair the furnace to resolve the issue.
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 my electric furnace blowing cold air instead of warm air?
Your electric furnace may be blowing cold air instead of warm air due to issues such as a malfunctioning heating element, a faulty thermostat, or a clogged air filter. It is recommended to check these components and consult a professional if needed to diagnose and fix the problem.
Why is my furnace not blowing cold air?
Your furnace may not be blowing cold air because there could be a problem with the thermostat settings, a clogged air filter, a malfunctioning blower motor, or low refrigerant levels. It is recommended to check these potential issues and contact a professional HVAC technician for further assistance.
Why is my furnace blowing cold air and won't shut off?
Your furnace may be blowing cold air and not shutting off due to issues with the thermostat, a malfunctioning heating element, or a problem with the blower motor. It is recommended to contact a professional HVAC technician to diagnose and fix the issue.
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.
Why is my furnace only blowing cold air?
Your furnace may be blowing cold air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition system, or low fuel supply. It is recommended to check these potential issues and contact a professional HVAC technician for further assistance if needed.
Why is my furnace blowing out cold air instead of warm air?
There could be several reasons why your furnace is blowing out cold air instead of warm air. Some common causes include a malfunctioning thermostat, a clogged air filter, a faulty pilot light, or a problem with the heating element. It is recommended to contact a professional HVAC technician to diagnose and fix the issue.
Why is my furnace blowing cold air instead of warm air?
Your furnace may be blowing cold air instead of warm air due to issues such as a malfunctioning thermostat, a clogged air filter, a problem with the pilot light or ignition system, or a malfunctioning heating element. It is recommended to check these components and consult a professional HVAC technician for further diagnosis and repair.
