Whole unit has no power.

Old 08-27-12, 10:15 AM
Thread Starter
Join Date: Aug 2012
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Whole unit has no power.

Before a large gathering on a hot day the ac ran constantly. I noticed later on that it hadn't run in a while which seemed strange on such a hot day, even though our thermostat is always on 79-80. I tried to turn it on at the thermostat, no luck. Checked the breakers for the compressor, ac unit at main panel and furnace on subpanel all with no problems. Then I crawled up in the attic to the furnace and checked the three amp fuse on the main board which was fine but the LED was off. Then I checked the 15 amp buss above the unit which was burnt and had loose debris inside. Once I replaced that, I still got nothing. There were no signs of power to the unit after the main buss, so I'm not sure what it could be. Thankfully it is not too hot this week.
Old 08-27-12, 03:40 PM
hvactechfw's Avatar
Join Date: Jan 2011
Posts: 5,491
Upvotes: 0
Received 4 Upvotes on 4 Posts
you will need to track down where the break in power is from the breaker panel.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: