Air Conditioning - 3 capacitors in 3 months

Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.



PDA

View Full Version : 3 capacitors in 3 months

zacktx
08-08-09, 01:39 PM
I have had to replace my AC capacitor twice this summer and just a min ago I realized my inside temp had gone up 5 degrees in just a few mins. What other problem do I have that causes multiple new capacitors to go bad? thanks Zack

Former Member
08-08-09, 09:32 PM
power surges(lightning strike)/short cycling/over or under rated constant voltage supply/bad batch of capacitors/bad compressor or fan motor/neighbors pet squirrel is chewing holes in the side of the capacitor?
hvac01453
08-09-09, 08:01 PM
happens more times than we would like. Read the data plate for the cap MFD and Voltage directly off the motor itself, not the unit. The rated voltage will likely be either 370 or 440, the run cap will be like 3.5 or 5 mfd. check all your connections too for tightness and corrosion. replace any in doubt. Don't forget to amp the motor after its running with the panel on. It should read whats = to or less than whats on its data tag.
Make sure you have the rubber boot covering the terminals on the cap.