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    alace01's Avatar
    alace01 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    May 11, 2007, 07:19 PM
    No A/C, no lights on thermostat
    Ok, I'll be perfectly honest and say upfront I have no idea what I'm doing when it comes to HVAC systems. I used to think I understood programmable thermostats, BUT lately even that is suspect :o

    We have a Honeywell T8611R thermostat. Just a couple of weeks ago it seemed to be working, but now... nothing. No lights no A/C... I even tried the (emergency) heat! Usually at least the "System" light comes on, now not even that works. We just replaced the 3 AAA alkaline batteries today!

    I double-checked the circuit breakers and the junction box outside and everything seems to be in order.

    Am I destined to be shopping for a new system :(... or is there hope still? :cool:
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
    Ultra Member
    		  
    #2

    May 11, 2007, 07:29 PM
    Do not have the attitude that you need a new system. Find out what the problem is and then go from there, it could be as simple as a broken wire somewhere in the system or a blown fuse.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
    		  
    #3

    May 11, 2007, 07:40 PM
    Northern Heat has posted the best sticky on AMHD at the top of this forum. Great place for you to start. There is often a 3 amp automotive blade type fuse on the control board, usually inside the cover you access the filters. It is often the cause of a dead system. If the control wires out to the compressor are shorted, the fuse will just blow again. They sometimes get damaged.

    alace01's Avatar
    alace01 Posts: 2, Reputation: 1
    New Member
    		  
    #4

    May 11, 2007, 07:49 PM
    Thanks guys!

    I appreciate the words of enCOURAGEment (something I'm needing right about now). I'll check for a blade fuse in the unit downstairs. I'll seek out my multi-meter (I have one somewhere :D ) and check the voltage running through the wires.

    I will post my findings, as soon as humanly possible.

    Again many thanks!
    hvacservicetech_07's Avatar
    hvacservicetech_07 Posts: 1,083, Reputation: 75
    Ultra Member
    		  
    #5

    May 11, 2007, 08:46 PM
    If you lost display in the thermostat and it's battery powered I'd start there.
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