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diablo blanco
LSU Fan
Oakdale, Louisiana
Member since Dec 2007
1076 posts

Help Needed from HVAC Professionals

Older five ton unit. Working fine yesterday mid morning. Returned late last night and it was 86° inside the house with the inside fan blowing. Outside unit only buzzes/hums. Changed the capacitor with no change to buzzing/humming.
Fan motor, compressor or something else?
TIA


Shepherd
LSU Fan
Member since Nov 2009
2921 posts

re: Help Needed from HVAC Professionals
Pan full of water?


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ItzMe1972
Member since Dec 2013
9237 posts

re: Help Needed from HVAC Professionals
Do you know if the compressor is starting?

Do you have fuses on the panel outside?

You need to check voltages on the contactor/relay. Power in? Power out?


diablo blanco
LSU Fan
Oakdale, Louisiana
Member since Dec 2007
1076 posts

re: Help Needed from HVAC Professionals
Thanks, all!
Checked the wrong breaker box inside.
(Older house with two main panels.)
Compressor and outside unit fired up after I reset the tripped breaker.


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