Question about Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: Exhaust fan making loud noises
Still under warranty. put it back together and don't tell anyone you took it apart. Call the factory numbers and have them fix or replace it...let us know what happens..kraxytech
Posted on Sep 11, 2007
SOURCE: My Goodman GMS 90703BXA gas
Check the vacume in your inducer motor. Ensure it is pulling at least -9. If you don't have the equipment, you'll have to wait till it has a problem. Or, pay a tech to come out and service your system, with particular attention to the inducer fan..
Posted on Dec 08, 2008
Do you have an inducer on the unit (no access to the lennox model number tonight)? That is a motor that comes on shortly before your unit fires that blows the combustion gases up through the flu. Does this motor come on at all if you have one? If it does and the furnace will not light, then there is a device on the unit called a pressure switch. This switch has two wires to it and a small tube that leaves it and goes to the inducer housing. Remove the tube from the inducer and blow into and draw in air lightly or until you hear clicking noises. Replace the hose and try again. Sometimes the pressure switch gets stuck but can also go bad. If everything is coming on all the way up to ignition but the unit won't come on, then it's probably one of the limit switches that need to be reset. These are little disks about the size of a penny and have two wires going to it. In the middle is a small button that can be pushed to reset it. Some units have 2 to 3 and others have more. You have to use a flash light and look all in the unit around the burners and around the flu pipe looking for the limits. Once you have found them all and tried to reset the unit, then try to start it up again. Hope this helps.
Posted on Apr 04, 2009
Buzzing noise - contactor. maybe a bug got in the contacts or maybe the coil is bad but in any case if you replace the contactor the buzz will go away.
Posted on May 23, 2009
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