3

here is a sound clip, start at about :55 or listen to whole thing!

https://clyp.it/3h54oe2q

model is tg9s060b12mp11 luxaire, which comes up as York most places.

Anyhow, what's the best way to diagnose if this is a motor problem or a capacitor or whatnot.

Here is how much I know about furnaces - I found out how to take the panels off. And there is a kill switch on the wall.

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2

Sounds like the capacitor is dead/dying.

If you have a capacitor tester, or a multimeter with a capacitor test feature, you can test the capacitor. There should be a micro farad rating on the capacitor (e,g, 10µF), and a variance percentage. When you test the capacitor, it should be withing the variance percentage. If it's not, then it's bad. For example a capacitor rated 10µF ±6%, should test between 9.4 and 10.6 micro farad. If not, then it should be replaced.

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  • Agreed. It's the capacitor or the motor is fried. What is wrong with my central heating? If the blower's squirrel cage spins freely, it's more likely just the cap. – Mazura Jul 5 '16 at 23:11
  • The capacitor was good. I bought a new one to try out just in case. I ended up replacing the motor. It was actually a fairly simple repair. – jqning Apr 10 '18 at 4:13

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