Ask Experts Questions for FREE Help !
Ask
    fisherclive's Avatar
    fisherclive Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 23, 2010, 11:38 AM
    No 24vac wires hooked up in central air condenser
    Hello.
    I bought a house with central air, tried to start it up the other day, it ran, but the condenser fan would not shut off, only way to stop it was to pull the disconnect outside.
    I removed the cover and found the contactor, it looks to be in pretty good shape. Someone tie-wrapped something to keep the contactor closed or pulled in, and upon further examination, found that the 24vac wires from the air handler were not connected to anything at the condenser. I have spent about 14 hours looking on line trying to figure this out, with no luck yet.
    Please help
    sdcodes's Avatar
    sdcodes Posts: 19, Reputation: 2
    New Member
    		  
    #2

    Sep 8, 2010, 11:52 AM
    What's the model and make of the units? Manufacturer's Installation Manuals are sometimes available on line and include wiring diagrams.

    If the 24V cables are out then there's no control communication between the air handler and the condenser. It's usually a simple job so try and get the manual.

    Check out how much for a service engineer to fix it. It shouldn't be too much and he'll set the whole thing up for you.

    An important thing to check is the refrigerant you're using. Is the condenser R22? This is nothing to do with the wiring but has to do with the use of R22 which, in the UK, is outlawed from 2015.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

What wires do you hook to a goodman furnace from central air [ 2 Answers ]

I have a goodman furnace and I need to hook my central air and I have just two wires and I need to know where they go they are white and red thanks

Can a new puron condenser be hooked up to an existing 1/4 inch line [ 5 Answers ]

We are in a condo development built in 1970's, and are now facing the changeover from "freon" to puron a/c units. We have run into problems because our current units run through 1/4 inch lines into the condos. The new puron units "require" 3/8 inch lines (or so we have been told.) Our existing...

Central Air Condenser Fan not working [ 11 Answers ]

The house was not cooling. The furnace in the basement was blowing, so I went outside to check the condenser unit. It was humming and the fan was not turning. The outside unit is clean, I have taken it apart and vacuumed all the fins this spring. I suspect it could be a relay that has gone out...

Central air condenser not shutting off [ 1 Answers ]

Our ouside central air unit continues to run. The inside unit (blower) shuts down. The blower will shut down for a minute or 2 & then come back on. The themostat never seems to go below 80. It does blow cool air. A few weeks ago a new motor was installed in the outside unit. It started...

My dog chewed my central air wires! [ 3 Answers ]

I turned on my Carrier central air today and it didn't work. I checked outside to find my dog chewed some of the wires! The wires coming out of the house are thin white and red wires (2)thatare banded together and the wires coming out of the condenser are blue and brown. How do I reconnect these...

View more questions Search