I need to replace a blower motor in a Tappan furnace, I dont have the specs for the motor but i do have the m/s#. Ijust need the specs....H.P. ....RPM....i know its 120V and 3 speed but nothing else. thanks
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Re: Furnace Blower Motor Specs
That information is usually on the data plate on the furnace and on the motor itself. All you need to know now is the HP. Other than that a universal consolidator motor is an easy fix too. It can handle 1/6-1/3HP.
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Direct Factory Replacement Inducer Blower Motor Used in 90% Furnaces. ... Comfortmaker, Intercity Products Snyder-General, Heil, Tempstar, Arcoaire Draft Inducer Blower Motor. ... Used in ICP Equipment Models: ... GUH125A016CIN
Remove the blower motor, With the furnace circure breaker off!!!!!!!!!! Put a universal 115 v plug on the two wires and hold it on the floor and plug ER in. It's a 115 motor, look at specs to make sure. If she don't , check wholesale house to get a motor. If not that, motor capacitor, then contact switch if capacitor don't do it. Be very safe!!!!!!! . The capacitor will need to be discharged and if checking it, do NOT Touch both post. Discharge it before disconnecting it by turning all power to furnace off, taking a screw driver and putting it across both terminals. It will arc. Do that a couple three times to get rid of stored electricity. If it does arc with a little snap and spark, it's good. BE SAFE. Hope that helps.
Gas valve should only have a couple of wires...24 Volt & common. the blower will use one speed on a gas furnace & a common. If you have AC or a fan switch on your thermostat, then the high speed will also be connected on the blower.
Since the motor is humming we know it is recieving voltage, try spinning the blower wheel by hand and see if the motor starts up, if it does the capacitor needs to be replaced, if not the blower motor needs to be replaced.
Usually when the furnace blower motor runs all the time
The limit switch or rollout switch is usually open or bad.
The furnace board is seeing that one of those switches is open, so it brings the blower on to try to get the heat out of the combustion chamber area, so the switch will close. But if the switch is bad and won’t close, the furnace board will keep the blower running continuously.
Have some one hold the bottom door safety switch, turn furnace on wait until heating fan relay clicks, and check at terminal (Heat) & terminal (neutral or where all the white wires are located on the control board) for 115 volts to 120 volts. If voltage is present replace blower motor, if voltage drops out while running then replace control board.Turn power off to furnace, open bottom door and feel blower motor with hand, if motor is real hot replace motor. you can not oil this type of motor, it has to be replaced along with the compacitor. Good luck.
magic chef furnaces were discontinued many years ago. Pull the motor and take it to your local motor shop. They will be able to match it. Furnace blower motors are pretty standard fractional horse motors.
remove the blower unit it slides out on some gas furnaces you may have a control bord in the way if you dont have a goodman motor you will need a belly band to clamp to new motor to provide the mounting arms also after loosening the shaft set screw spray w wd40 turn on side and shake motor should fall out if gas furn 115v motor hope this helps