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Why does the Furnace flame go out and blow cold air. When I switch it off and let it reset it will work fine.?
Makormak
Could be a bad computer board or flame sensor. If you have to keep resetting it-the computer board is more likely the problem.
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∙ 15y ago
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How to check a flame roll out?
warning: flame roll out can cause serious injury 1) turn service switch off at the furnace 2) adjust thermostat so set point is 5-6 degrees above room temp, set t-stat for heat, and set fan to auto 3) remove ignition compartment door of the furnace as opposed to the door enclosing the indoor blower motor 4) turn the furnace service switch back on 5) do not look directly at the combustion burners as flame will shoot out of the burner compartment 6) observe the ignition finally proper ignition is confined to the area intended for combustion, with a blue flame. a roll out will cause the flame to ignite beyond the burners and may even blow beyond the blower compartment. further, a roll out can persist beyond the initial ignition sequence.
Why does your gas furnace blow black smoke in the house?
# Why doe the gas furnace blow black smoke?
Why does the blower take 2 minutes to start on forced air furnace?
There is a delay on the fan to allow the furnace to get hot so as not to blow cold air into the home at start up. There is also an `OFF` delay, where the fan runs for a minute or so after the flame shuts off. This is to cool down the furnace.
What would cause half of your electricity to go off in your home when you turned on a light switch and the fuse did not blow?
Not sure but just reset your breakers
Why does your central heat blow cool air when it comes on?
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.
Why does a home ac blow heat until it gets about 2 degress below what it's set for and it start's blowing cool air?
That is the function of the fan/limit control on your furnace. When the thermostat nears the point where the room temp setpoint is satified it shuts off the flame. The fan/limit control keeps the fan on for a minute or so to cool the furnace down before shutting off. Conversly, if your watch your furnace at start up you will see the flame lights first but the fan does not come on for a minute or so to allow the furnace to get hot and avoid blowing cold air into the home.
Will blowing a flame make it bigger or smaller?
A gentle blow, which increases the flow of oxygen around the flame will make it bigger. A strong blow which will reduce the air pressure and so reduce the amount of oxygen will make the flame smaller.
Why does a gas furnace only blow cold air?
Because you set it that way
Can a flame from a lighter go back in the lighter and blow up?
no
Why does the popcorn seller blow on the burning pieces of coal.?
Burning coal requires oxygen to chemically react (C+O2=CO2). The availability of oxygen is limited in the furnace by several factors such as the friction of the air against the coal. Blowing provides more oxygen to the flame and raises the temperature of the flame. The hotter flame pops the corn more rapidly. Blacksmiths use the same principle to raise the temperature of their forges.
Where to put the blow off valve?
next to the blow off switch
Why does gas furnace blow cold air?
because you got to light it....commen mistake
