Hello and thank you.
my question is. outside unit, fan operating when thermostat set to cool
but no compressor operation. fan on furnace works properly.
any parts that i could change myself.
thank you again.
Symptoms sound like a bad capacitor. If you want to attempt it yourself then pull the disconnect and pay close attention to the wiring. The new capacitor will need to be at or higher voltage spec. yet the same capacitance value(s).
If in doubt hire it done. A capacitor replacement "shouldn't" be too expensive.
thank you very much for the info.I took the cover off the condenser unit and did see what looks like 2 capacitors. possibly 1 for the fan.
It's the hottest night of the year, i think. i will call around tomorrow.
thank you again.
The second cap. is often a start cap for the compressor.
If you see bulging/oozing then the cap is suspect. Other then that you really need to disconnect the leads to test them.
Caps like to fail the hottest day of the year.
Fortunately they're one of the least expensive repairs to an HVAC system.
thank you for information.
tested both capacitors. #1 for the fan. 4 micro farad. tested 2.82.
#2 compresser. label 25 micro farad. tested .38 nano farad. the top was slightly bulging.
replaced both. system working normal..whew!!.
this site was a great help. Its all i needed with a little common sense.
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