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Some units require both a start and a run capacitor. It's possible the wrong capacitor was replaced. It's also possible to add a run capacitor to a system to keep the fan running. There is an outside chance the bearings in the fan motor are worn to the point it's time to replace the motor.
hello Miss/Mrs/Mr, I have the furnace trane xl 80, when I turned for heat everything working but only blower motor was not running, I wait for 1 minute all system suck down? I guess the capacitor blow out, that the reason why blower motor was not running
Well, the answer is yes. I have seen a bad capacitor cause a fan motor to run backwards. BUT..... After replacing the capacitor and WIRING it up the right way, everything should be fine. A lot of aftermarket condenser fan motors are reversible, so it can run counter-clockwise (CCW) or clock-wise (CW). However, most factory fan motors come one directional and on your specific unit, the air should always push out of the top. Running the unit with the fan going backwards will actually some-what do it's job, but damage other components like the compressor because it runs at higher operating pressures than what it is designed for.
Have someone else look at it! That's going to be the best advice I can give you. If they can prove that a capacitor caused the motor to permanently run backwards..... I want to know! Hope this helps and good luck with your unit.
Did the 2 fans have the same rpm. If there is not enough airflow through the outside unit the compressor will shutdown on high discharge pressure. Also make sure the fan blades are positioned right if there is a shroud for them. Did the other motor have a capacitor with it or did you use the 1 from the smaller motor. Sometimes the motor data plate will tell you what size capacitor you need. Let me know what you find.
Hi and yes if this motor does not have sealed bearings, buy a oiler called a zoom with a telescopic spout and oil the bearings. I wouldn't replace this motor unless it starts to slow and get real loud. Sounds like its just dry bearings. Don't replace it until its to the point of getting hot and stopping on its internal over load. Sincerely, Shastalaker7 A/C, Heating, & Refrigeration Contractor
Make sure the capacitor is connected to the start lead, not the run lead(s). Also some fans come with some wires you can switch to reverse the direction. If your motor has them there will be 4 and the label on the motor will tell you how to connect them. Let me know if you need more assistance or if this helps.
are you still having issues with your twg030a140b1? the heatpump that you own should not be having this issue the question is the configuration of the coil in the AHU is it properly installed. I am a distributor for Trane equipment and am wondering if the install tech installed correctly
Most likely a bad motor or bad capacitor. I would check the capacitor first as this is probably a $20 fix. The fact that it runs in the correct direction but at a reduced speed really leans hard to the capacitor.
Good Luck and hope this resolves things for you. Let me know.
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