The transformer in the ac air handler keeps huming then it pops where it burned out why?

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Originally Posted by 32oso

the transformer in the ac air handler keeps huming then it pops where it burned out why?

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Because you have a short circuit that needs to be traced down and repaired. Transformers are expensive so I suggest you install a inline fuse from (Radio Shack) or others to prevent the transformer from burning out while you do the repair. Fuses are much cheaper than transformers.