I have a problem with a ceiling fan capacitor I hope you can help me with. My daughter's fan was barely turning and according to the internet it was probably the capacitor. I removed it but was distracted a couple of times and apparently did not write down everything as I took the wires off. Bad me! I took it to Lowe's hoping they would have a replacement which of course they didnot. He said it was the speed switch which he carried so I bought one to install.
Now my problem. The capacitor is a 5 wire --2 gray on one end and 3 wires, a brown, purple, and red on the other end. I have everything conected back except the red which connects to the red on the fan but I have 2 wires left, one brown, one gray, with only a gray wire coming from the fan. Do both of those connect to the gray wire.
Is more likely for a 5 wire capacitor. The "rotary" switch may not be used. The switch is usually a centrfiugal switch and opens when the motor is running. The characteristics of a start cap can be entirely different than a run cap that for these lossy motors, can be eliminated.
What happens is that for the 3 lead run cap there is a common lead to two capacitors. The capacitor value add when paralleled and thus the common and the other two wires have the largest value. This is the highest speed. The lowest value is the lowest speed. The next highest value is the middle speed.
The cap common usually goes to the line and the switch in LOW selects the lowest valued cap. MED speed selects the high valued cap. HIGH selects HIGH and LOW caps together thus making the highest possible capacitance
The 4.5uf cap is probably the start cap based on the odd voltage rating of 280 vs 250V.
If you want to play, insert a 60 W light bulb in series with the line of the fan. It should prevent smoke from appearing.
Dude, you're way off base. None of the stuff you're posting is even relevant to the original problem, and most of it is barely relevant to ceiling fans in the first place.
Ceiling fans do not have separate start and run caps. One capacitor is used for both functions, and in some cases, the value changes to dictate the speed. In other cases, such as the diagram you posted, multiple winding taps are used to dictate speed. That clearly isn't the case here as he has a 5 wire cap.
I do not believe that these diagrams are better than nothing. Because they are likely to mislead someone into hooking their fan up incorrectly, thinking their wiring will match the diagram. Then we have a bigger mess to sort out. This is why, on "my" site (and if you read the link you posted you will learn I am not the site owner) there are NO diagrams posted. As I have stated many times, including the last time you posted these diagrams, there are HUNDREDS of different wiring setups for ceiling fan motors. The likelyhood that an internet diagram will match the specific fan someone is asking about is slim to none. Before posting wiring instructions, get the make and model, and/or the specific wiring that is already in place. If you can find a diagram that matches exactly, GREAT. Certain fans are standard such as Hunter Originals and Casablancas.
Otherwise, the advice I give to EVERY poster: hook everything up HOW IT WAS. Replace one componant at a time. *I* cannot successfully replace a double layer pullchain or 4+ wire capacitor any other way, and if I, who has worked on thousands of ceiling fans, can't, it will take a very lucky break for anyone else to.
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