So, if the capacitor attached to your fan motor is bad, the fan won’t start spinning. There is a caveat; when the motor contactor drops and the motor is spinning full speed, there is full voltage across the motor … Fan 2 ran forward and fan 1 ran backwards. To complete a single phase motor direction change, you will need to reverse the polarity of the starter winding. If the shaft rotates to the left, your motor is CCWLE. I had a york with dual condenser fans do that to me about a week ago. The replacement motor is a mars 10468 multi-HP 2 speed reversible. That coupled with the dynamics of a condenser unit design, the ambient air is going to balloon or mushroom inside the unit rather than go out through the coils effectively. Compressor pulling 11 Amps. Once the fan motor breaks down, the AC will stop blowing cold air and that’s something you don’t want on a hot summer’s day. Using about 20 percent nominal current as a braking current was enough to keep it almost at zero speed. The Condenser fan went bad in my AC Unit. The basic situation is that we have a single phase condenser fan rotating backwards. A fan blade is designed to run in one direction, otherwise it only moves about half of the air it should be. Cabinet not hot (thx Yuri for the warning) and compressor terminals not shorted to bare copper (cleaned up good) suction line. The capacitors have been replaced as well. Here’s an easy way to test if the fan’s capacitor is bad. It needs that extra boost from a start capacitor. Fan 2 ran forward and fan 1 ran backwards. ... 6 ways to tell if you air conditioner fan motor might be bad. Slide a long, thin wooden stick through the fan grate and gently push one of the blades to try to get the fan spinning. The fan blade has not been changed or flipped. Outside Air Conditioner Unit: Fan Spinning in Reverse Recently I replaced the contact relay and the capacitor (dual capacitor) on my 2.5 ton Payne outside unit.I thought that I wired everything on to the new capacitor correctly by following the wiring on the old capacitor.However, when turning on the unit, the fan on the outside unit spun counterclockwise. Here is the noodle cooker. I replaced the motor bc both caps tested good and the damned thing kept on runnin backwards. The orginal Motor was a emerson 1/10 HP 1 Phase. Because the fan motor is one of the hardest working parts on an air conditioner, it is subjected to a lot of wear and tear that can lead to frequent repairs or replacement. The air conditioner fan is located in the condenser unit, the portion outside your home. This will cause the magnetic field to change directions, and the motor will follow. The company put in a new condenser fan motor and oval capacitor but didn’t replace the dual capacitor said it didn’t need to be replaced that the capacitor was good. The blade was easy to spin, but the motor was hot to the touch Ac company came out again said it was a bad new motor. In order to achieve this, you can swap the connections on either end of the winding. AC Condenser fan 1/6 hp 208v The motor would not run. I replaced the capacitor Now a call for cool: motor runs slow Thermostat satisfied: runs backwards. Here's the kicker, since lead end and shaft end perspectives are opposite of each other, a CCWLE motor is also CWSE and a motor that's CCWSE is also CWLE. The wiring was moved to the other fans for troubleshooting and the problem transfers to the other fans each time. The problem remains. Condenser Fan Amps: 1.25 Dual Run Cap specs from Nordyne (phone call): 35/5, 440v What I found: Condenser fan running backwards (pulling in air from top and out coil sides). Therefore, to determine whether or not this part is working, you’ll have to walk outside and look at the fan through the vents of the condenser unit. 5 Signs That Indicate a Failing AC Fan Motor I got a Universal replacment motor and installed it. It was a 3 wire motor. The AC unit has a 35+5 Capacitor with a Extra Start Capacitor. On 2020-05-31 - by (mod) - Kev Let's step through the diagnostics on the page above. Finally, if you're looking through the catalog and notice the motor rotation given as DS, it means that motor is a double shaft motor. On 2020-05-28 by Kev My ac air handler motor is turning opposite side , how can I fix it ? The slow backwards movement we had was not a problem.
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