Question about Heating & Cooling
Turn power off.
Pull the leads off the capacitor.
Read off the capacitor the microfarad rating. (example 5 mfd or 5/30 mfd)
If the capacitor is oval it will have two sets of lead connections.
If the capacitor is round it could have three sets of lead connections.
On the oval capacitor, with a multimeter set on mfd, place one meter lead on one set of lead connections on the capacitor and the other lead on the other set of lead connections on the capacitor. Make sure you have a good connection. Read the mfd reading on the meter. It should be within 5-6% of the stated mfd of the capacitor.
On the capacitor with three sets of leads you will need to look at the top of the capacitor by the lead connections and find which lead is "c", which is "HERM", and which is "fan". Place your multimeter lead on "c"(common) and "herm" lead and take the reading, then take your leads and place on "C" and "fan" and take the reading. Compare these readings with the rated mfd stated on the side of the capacitor.
Posted on Sep 02, 2011
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Posted on Jan 02, 2017
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