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HVAC Guru
HVAC Guru, HVAC TECH
Category: HVAC
Satisfied Customers: 14862
Experience:  15yrs in the HVAC industry with certificates and degrees.
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Air handler wont start. I have powercoming in and the fuse

Customer Question

Air handler wont start. I have powercoming in and the fuse is good. Also thermi stat is on set to cool and below temp of house. I hear the thermostat click on but blower wont run.any idea?
Submitted: 1 year ago.
Category: HVAC
Expert:  HVAC Guru replied 1 year ago.
Hello and thanks for using this service, if you have been waiting do not worry or get upset. I am HVAC Guru an extremely experienced tech on the site and I try to get to as many customers as I can. I just picked up your question now. NOTE it takes time for me to type research and add links so please wait for me to respond back I can only do this so fast. Secondly I am not paid anything until you rate my service good using the STAR RATING LINK at the top of your page, the money is paid to the site not me directly. Try to jumper thermostat connections R to G at the board in the airhandler and see if it starts.
Customer: replied 1 year ago.
There isnt a board persey. It has componets screwed to the metal cabinet of the air handler
Expert:  HVAC Guru replied 1 year ago.
If you jumper R to G at the thermostat does it start?
Customer: replied 1 year ago.
No
Expert:  HVAC Guru replied 1 year ago.
Ok do you have 24 volts or power to the air handler?
Customer: replied 1 year ago.
I have a 240 line coming in
Customer: replied 1 year ago.
And yes the power is on. Used a volt checker for incoming power to know it is live
Expert:  HVAC Guru replied 1 year ago.
OK do you see the Red and Green wire and do you see any board?
Customer: replied 1 year ago.
I see many red wires and one green to a switch and one greeen to a ground
Expert:  HVAC Guru replied 1 year ago.
Is there a small board in there anywhere?
Customer: replied 1 year ago.
I just added a picture
Customer: replied 1 year ago.
This is on the right side of the fan motor. Seperate compartment
Expert:  HVAC Guru replied 1 year ago.
Do you see a wiring diagram that you could send a pic here?
Customer: replied 1 year ago.
No diagram inside.
Expert:  HVAC Guru replied 1 year ago.
IS the blower humming or doing anything
Customer: replied 1 year ago.
No. Nothing
Expert:  HVAC Guru replied 1 year ago.
Then either you have a 24 volt supply issue from that small transformer in the air handler or make sure your condensate pump float is not tripped if you have one as that can cause that issue. Other than that you may need a tech All I ask is please use the Star Rating Link at the top of your page before leaving, that is the only way I am paid anything through the site.....tips are greatly appreciated so thank you very much for using this service. If you have any other questions just post back to me here anytime!
Customer: replied 1 year ago.
There is no float. How can i check the transformer?
Expert:  HVAC Guru replied 1 year ago.
You can test it with your volt meter for 24 volts ac out of it.