DIY Home Improvement Forum banner

41 - 51 of 51 Posts

·
Registered
Joined
·
12,485 Posts
See if the output of the contactor is 240v -> you can have a contactor that pulls in but has cooked contacts. it's unlikely though.
 

·
Registered
Joined
·
25 Posts
Discussion Starter #42
Dear roughneck!


I have a brand new dual capacitor that has same as the rusty one I currently have on unit.


I am not sure if the idea I am going to wire on the new one is correct.


currently two brown wires go into on the small single capacitor and one yellow and one red line go into on the big rusty capacitor on the right side.


Am I do ing right two brown wires go on COM and Fan, Yellow to Herm, and Red to Com if I use a brand new dual capacitor instead two single capacitor ?
 

Attachments

·
Registered
Joined
·
5,866 Posts
Test the electrical system first. And the existing capacitor.
Don’t worry about changing parts till you figure out what’s going on.
 

·
Registered
Joined
·
25 Posts
Discussion Starter #44
I checked all parts again and contactor does not pull in when heat is on.


I get 24v on C and Y C and R on the defrost board. :crying:
 

·
Registered
Joined
·
5,866 Posts
Do you get any voltage on the coil?
It may be time to call a tech in. I see what appears to be wires for a pressure switch. It may be a refrigerant problem keeping the unit off.
 

·
Registered
Joined
·
25 Posts
Discussion Starter #48
UPDATE!


I took time and try to trace carefully step by step.


I end up finding the new Contactor has wrong coil voltage, I was lucky that I still had old rusty one so put that back and everything back to work.


I had 240v coil voltage and replaced with 120v.


The new contactor is on the way now.


Thanks for your help guys!
 

·
Registered
Joined
·
18 Posts
I'd say if you have never had any experience with diagnostics, call for a contractor. It might be cheaper and safer.
 
41 - 51 of 51 Posts
Top