Tim Babcock Posted December 31, 2022 Share Posted December 31, 2022 I ran across this BMY switch assembly. I don't know if it will work with my BMY. My coil had only three wires coming out of it. They all went to the switch lever connection knobs. This one has three wires going to the lever connection knobs but only two coming out of the coil. I think my fan is a different set up. Thanks for any help. Quote Link to comment Share on other sites More sharing options...
Lane Shirey Posted December 31, 2022 Share Posted December 31, 2022 If your fan had a switch with a halo coil mounted on it, this will not work. This is intended for a fan that has the resistance wound into the stator. If your stator has approximately the same resistance between headwire pairs this will not work. If the stator has a pair with high resistance than it should work. Hope that helps! Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted December 31, 2022 Author Share Posted December 31, 2022 Thanks Lane. I thought that was the case. So there seems to be three different set ups on for the GE BMY. Mark is rewinding my coil. So that will fix this fan. I ran across this one and thought it may work. No problems and thanks again. I need the coil that has three wires that go directly to the three switch knobs. 1 Quote Link to comment Share on other sites More sharing options...
Mark Olson Posted December 31, 2022 Share Posted December 31, 2022 1 hour ago, Tim Babcock said: Thanks Lane. I thought that was the case. So there seems to be three different set ups on for the GE BMY. Mark is rewinding my coil. So that will fix this fan. I ran across this one and thought it may work. No problems and thanks again. I need the coil that has three wires that go directly to the three switch knobs. Tim, your coil went out this morning. I will send you the tracking number by messaging. Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted December 31, 2022 Author Share Posted December 31, 2022 Thanks Mark. I really appreciate it. Quote Link to comment Share on other sites More sharing options...
Lane Shirey Posted January 1, 2023 Share Posted January 1, 2023 22 hours ago, Tim Babcock said: Thanks Lane. I thought that was the case. So there seems to be three different set ups on for the GE BMY. Mark is rewinding my coil. So that will fix this fan. I ran across this one and thought it may work. No problems and thanks again. I need the coil that has three wires that go directly to the three switch knobs. Yeah the third type is the early (1908?) type with centrifugal start. Quote Link to comment Share on other sites More sharing options...
Mark Olson Posted January 1, 2023 Share Posted January 1, 2023 On 12/31/2022 at 7:42 AM, Tim Babcock said: Thanks Lane. I thought that was the case. So there seems to be three different set ups on for the GE BMY. Mark is rewinding my coil. So that will fix this fan. I ran across this one and thought it may work. No problems and thanks again. I need the coil that has three wires that go directly to the three switch knobs. Tim, please remember that your fan will need the capacitor added to it if you do not have the halo resistor. The rewound coil alone will not run your fan, it needs a phase shift across one of the three windings to cause it to start. Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted January 3, 2023 Author Share Posted January 3, 2023 Mark, I have a Cap in line now. The fan runs when tested but of course no speed control, just full speed. Quote Link to comment Share on other sites More sharing options...
Mark Olson Posted January 3, 2023 Share Posted January 3, 2023 3 hours ago, Tim Babcock said: Mark, I have a Cap in line now. The fan runs when tested but of course no speed control, just full speed. Let me know how the coil works out for you! Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted January 3, 2023 Author Share Posted January 3, 2023 I keep getting the same speed on all three settings. I have changed the hookups and still all the same. Not sure what is going on. I get a readings of the coil ohms as ABC A to B .35 A to C 4.7 and B to C 1.4, when I plug it in to the head I get amps of .65 .63 .52 So I am not sure where I am going wrong. Quote Link to comment Share on other sites More sharing options...
Mark Olson Posted January 4, 2023 Share Posted January 4, 2023 24 minutes ago, Tim Babcock said: I keep getting the same speed on all three settings. I have changed the hookups and still all the same. Not sure what is going on. I get a readings of the coil ohms as ABC A to B .35 A to C 4.7 and B to C 1.4, when I plug it in to the head I get amps of .65 .63 .52 So I am not sure where I am going wrong. Do you have the blade on it? Quote Link to comment Share on other sites More sharing options...
Mark Olson Posted January 4, 2023 Share Posted January 4, 2023 Just now, Mark Olson said: Do you have the blade on it? A to B looks wrong. Check ohms to frame. Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted January 4, 2023 Author Share Posted January 4, 2023 Yep blade was on. I checked for a short between the three wire and laminated frame. I get nothing. So I don't think there is a short. Quote Link to comment Share on other sites More sharing options...
Mark Olson Posted January 4, 2023 Share Posted January 4, 2023 Okay, a couple of things. A to B plus B to C should equal A to C. Pick an end wire, call it A, call the other end C and the middle B. Your readings have a misplaced decimal point, probably from auto ranging of the meter, but 3.5 + 1.4 = 4.9 and you got 4.7, that is good. The fact that the motor current does change when the speed tap is changed indicates that the coil "works" You may need to swap A and C I believe the capacitor you have installed may be too "big". Try a 2.5 uF. If it won't start, try a 4uF Quote Link to comment Share on other sites More sharing options...
Lane Shirey Posted January 4, 2023 Share Posted January 4, 2023 For that fan, the 2.5 mfd seems more reasonable. I forget what they had in them. But if I recall that’s my go to. As Mark said, if it doesn’t start go a little higher value. 4 mfd is a bit high. The size of the cap affects the amount of phase shift on the start coil. Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted January 4, 2023 Author Share Posted January 4, 2023 The cap in it is a 2MFD,2 mfd,2uF,250VAC Quote Link to comment Share on other sites More sharing options...
Tim Babcock Posted January 5, 2023 Author Share Posted January 5, 2023 I ordered a 1.5 MDF Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.