big loud buzzing sound from outside unit.

Old 06-23-11, 06:16 PM
Thread Starter
Join Date: Apr 2011
Location: usa
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
big loud buzzing sound from outside unit.

I have very big loud buzzing noises from outdoor unit suddenly and found no cool air was coming in. The thin pipe from outside unit was not hot and the thick one was not cold. The fan inside and outside were running. I shut it down and tried in ten minutes. The A/C is running okay then.

What could cause the big noise like that. Would it be contactor, bad capacitor or just could it be compress going bad?. I have 4 ton bryant unit split systme with evap coil inside in Dallas, TX. I don't want to be stranded in 100 degree weather.
Old 06-24-11, 03:18 PM
hvactechfw's Avatar
Join Date: Jan 2011
Posts: 5,491
Upvotes: 0
Received 4 Upvotes on 4 Posts
The contactor can cause buzzing noises.....

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