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Old 06-22-2020, 09:16 PM   #1
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Unusual capacitor challenge


I have a Trane XR14 that is doing the typical buzzing sound but the fan isn't starting or running, even when bump started with a stick. The unit has two single run capacitors. One capacitor (135-162MFD) tested good, and the other (70uF) tested bad. I have a dual run 70/5uF handy. A single run exact replacement won't arrive for another week. Should I be able to install the dual run using the C and HERM terminals?
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Old 06-22-2020, 10:40 PM   #2
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Re: Unusual capacitor challenge


If the voltage rating is ≥ then it'll be ok.... leave the old (section) out of the loop.
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Old 06-22-2020, 10:59 PM   #3
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Re: Unusual capacitor challenge


You said the fan isn't running. Is there possibly a 3rd run cap in the unit. From what you've described it sounds like you have a compressor start capacitor and run capacitor. neither one of those would affect the fan.
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