spider
Aug 17, 2005, 05:06 PM
I have an old York furnace with central air. When turning on the A/C, sometimes the blower comes on, sometimes it doesn't, and sometimes it toggles off and on with a loud clicking sound. If I use the manual switch on the limit control, everything is fine, but of course, then the blower is on continuously. Taking a look at the system, the problem seems to be what looks like a transformer with relay and lots of various colored wires. From reading previous posts and checking the internet, this stuff seems to go by names like A/C relay, fan control, fan relay and the like. I know I could just start pulling out wires and taking the whole thing off, but is there a specific part that is going bad? Is that loud clicking sound a failing relay?