I installed a new squirrel cage motor and now when the furnace is off, the motor will still run in slow speed even if I turn the thermostat off. When the heat or air are turned on, then the motor runs at normal speed.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
On the Good man you need a 5/16 nut driver take the furnace panels off and the blower is in the bottom area. There are 2 screws up top that connect to the blower housing take those out. Everything else will be loose be careful with the wires they can be tricky to work around. But take your motor out throw it away and install your new blower motor and capacitor. Its a simple job really. If you replace the motor yourself you willl save over $300.00
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.
Hello, I had the same problem and replaced the Centrifugal motor which still did not fix the problem. It turned out to be the squirrel cage that the Centrifugal motor turns. It was sticking on the rubber gasket between the motor and the squirrel cage/housing assembly. I loosened the set screw that holds the cage on the shaft and moved the cage up 1/8th of an inch and it solved the problem.
is the fan outside too noisy,if so there is no way to change the speed of this fan,the blower motor in the furnace can be adjusted,either by adjusting the centrifugal pulley on the motor shaft or electrically or installing a different squirrel cage fan on the furnace blower
inside the air handle there is a motor and a cage(squirrel). I am assuming this is the problem. The side that has the pilot light, take this cove off first, then the back cover. There is a switch so when you take the back cover off it opens the circuit. You will see a main board and to the left and behind is the motor and squirrel cage. I would kill power and then remove the bolts making sure I make the wires and where they go. Then just take the motor and cage out. You will need a allen wrench to remove cage, then replace motor. Hope this helps Tim
Your evaporator fan motor has quit. You need to find out if it is a relay or the fan motor. These systems come in various different setups. Updraft (vertical) or lay down (horizontal) you have to gain access to the motor and get it out. Turn off all power to the unit, look for any breakers at the panel. open the panel usually the same panel to access the filters. The motor and squirrel cage fan, will come out as one. look closely for rails at the top to slide the motor and cage out. Your wiring should unplug from the top close to the capacitor. you then can unbolt the motor - take pictures so you can reassemble it. Take the motor to a local HVAC store for a match. Be sure you get a new capacitor to go with the new motor.
Follow your schematic on the new unit. It will tell you where the wire goes. Some of the "extra" wires are connected to the main board close to where the "used" wires are and they are labled "spare". Find the blower motor on the schematic and trace out where this wire will go.