Question about Carrier Heating & Cooling
Posted by Anonymous on
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Posted on Jan 02, 2017
check thermostat make sure fan is not set on on, if thermostat is right the fan relay may be stuck closed or thermostat wire can be touching
Posted on Oct 27, 2009
Absolutely, however, you want to properly diagnose the reason why the fan is not running. It could be a less expensive part than the fan motor itself.
First, check to see if you have the proper voltage going to the motor. I believe your motor requires 240volts ac. If you do not have 240 volts, you have a control problem.......either the thermostat is failing to close R & G or your blower relay may have failed to close the contacts necessary for your fan to operate.
If you have the voltage, then you want try spinning the blower wheel with your hand. Does it spin freely? Is the motor warm/hot? If so, turn everything off for an hour or so. As soon as your energize it, try spinning the motor with your hand again.....if it spins freely with no resistance and then starts running by itself, the problem is the run capacitor (approx $20.00 depending on where you purchase it from). If there is resistance when you try to spin it, the problem is most likely with the bearings and you will need to replace the motor.......if you have to replace the motor, go ahead and replace the capacitor also, making sure it is properly "matched" with your new motor.
I hope you find this to be very helpful to you, moving forward. :-)
Posted on Mar 28, 2010
SOURCE: I need to replace my
Turn off power to machine and have a 5/16" or 1/4" nut driver handy take off front door of machine. Take a rubber coated Screw driver and place across the terminals of the Capacitor to discharge any stored electricity. Cut wires for blower Black, Red, white, two browns one with white lines on it probably. Look inside machine and locate where bracket holds squirrel cage to air handler and there you will find either 5/16" or 3/8" screw remove pull bracket out. Then you will need a 1/2" socket and a crescent wrench. Remove screws for motor bracket that is attached to squirrel cage. Also you need to loosen the set screw that attaches blower wheel to motor. Apply wd-40 if needed to remove blower wheel from motor. Then install new motor on the flat part of the shaft comes through wheel attach set screw to motor shaft at that position. Install new cap that goes with motor. place entire housing of motor back into air handler and then follow wires that where previously cut back to either relays, sequencers, or fan timer board located in top section of air handler. Tighten everything up and turn power on and make sure air is coming out of vents. Then your good to go.
Posted on Apr 30, 2011
SOURCE: I JUST REPLACED THE BLOWER
It the wall themostat set to AUTO or MANUAL on the FAN switch?
It should be on AUTO.
I saw you chat question. Intersting that the board is new and the fan would misbehave. It must be something simple like I suggested above.
Posted on Jul 06, 2011
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