Subscribe To This Site
XML RSS
Add to Google
Add to My Yahoo!
Add to My MSN
Subscribe with Bloglines
Home
Central Ac Blog
How Ac Works
Ac Maintenance
Drain Line
Tech Tips
YOUR Reviews
Trane Ac
Carrier hvac
Goodman Ac
York Hvac
Bryant Hvac
Lennox Ac
Rheem Ac
Heil Hvac
Tempstar Hvac
Sears Ac
Ruud Ac
Amana Hvac
Gibson Hvac
American Standard
Janitrol Ac
Armstrong Hvac
Discussion
AC Question
Central Air Cost
Hvac Problems
Ac Smells Forum
Ac Ice Discuss It
Ac Noise
Serial and Model
-
Privacy Policy
Site Map

Condensor Unit Keeps Blowing Fuses

by norbert
(rochester, mi)

After replacing a fuse the unit may run for a few hours before blowing another fuse or could take several days. had a repair technician come look at the unit he said the compressor had a short to ground. The unit still cools when running (note compressor and condenser fan are separate motors). Being a EE this does not make sense to me. If the compressor motor has a shorted winding it should not start or run at all.

The first thing that he wanted was to sell a complete new unit.




Comments for
Condensor Unit Keeps Blowing Fuses

Average Rating starstarstarstarstar

Click here to add your own comments
Aug 08, 2011
Rating
starstarstarstarstar		 Trip Breaker
by: Anonymous

A compressor that is short to ground will always blow fuse, whenever you turn the central ac unit on. The fuse has a specific ampere on it. The fuse prevents the condenser unit to pull in too much current and that is why it trips the breaker.

There are times when homeowner trying DIY work and put in the wrong fuse for central ac unit. The fuse for central ac unit is time delay fuse. Each HVAC unit will have its own amp.


Dadan
Aug 07, 2011
Rating
starstarstarstarstar		 Similar Problem!
by: Anonymous

Mine is doing the same - blowing the outside fuses once every two weeks or so. Everything seems fine during the time in between. Filter is clean, electrical connections seem good. It happened once last year, and three times in the last two months (it has been an awful heat wave here in SW Michigan). It is a Bryant unit - about 13 years old. I will watch your post to see if someone can offer advice.

Click here to add your own comments

Copyright © Central-Air-Conditioner-and-Refrigeration.com. All Rights Reserved.