Question about Heating & Cooling
Bryant furnace plus 80 model 395cav blower fan will not run in either the automatic or run mode. The heater will fire and run but the blower will not come on.
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Posted on Jan 02, 2017
does the furnace ignite?? your system may not have been lighting and has gone into ignition lockout count the codes of the led lights then remove panel led diagnostic codes are listed there.
if led codes indicate no problem verify capacitor is good and that mtr is getting 115 volts.
Posted on Nov 22, 2008
try checking the pressure sensing switch,it has a tube that should run somewhere close to the inducer fan.sometimes this hose fills with liquids,and makes the units act funny.I don't know if you have a condensing unit or what.the furnace wont try to light if it cant tell the inducer motor is running.any induced draft unit will work this way.you can also do a temp. bypass of the pressure switch to make sure the contacts on it are closing just be sure your inducer fan is running,and you cant leave it like that its just a test.that is a safety feature you really need.
Posted on Mar 19, 2009
if the gas pressure is good on inlet and outlet of valve u might wanna chk the burner trays and manifold for flakes, dirt, spider webs ect... once u kno the passages are clear from obstruction you can focus on the mechanical. (sounds like gas valve may be getting weak and not able to open fully)
Posted on Mar 22, 2009
NO BECAUSE THE BOARD IS TELLING THE FANS TO STARTARE THE CONTACTS FUSED TOGETHER OR STUCK IN THE CLOSED POSISTION CHECK THIS FIRST
Posted on Aug 10, 2009
If this is a newer furnace, an indication of an error is that the room air blower stays on. Get in front of the furnace and see if you can see any blinking lights. Try not to remove any panels as you will erase any error codes. There should ba a small viewing port that you can look through. Once you count the blinks, look at the wiring diagram for the error code chart. It may give you a starting point. Can you tell us a make and model number of the system?
Posted on Dec 29, 2009
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