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AC unit runs inside but not outside! help

I have an Lennox Elite Series AC Unit purchased it in 2005, tried to get it going today, air blowing up the vents on the inside, went outside to see if running outside and it is not, HELP!

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Check your thermostat is it set on cooling, check your pressure switch it might be triped due to blocked condenser.

Posted on Jun 30, 2009

  • Laura Purcell
    Laura Purcell May 09, 2014

    Thermostat set to fan on, inside unit going, breaker box chd and in on position but outside wont turn on. there is a grey box out by unit i opened and there is a handle says on/off but you cant move it??what and where would i look for the pressure switch?

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Check breaker thermostat set cooling auto call for service.allso get it cleaned both coils.. Tom

Posted on Jun 19, 2009

  • Laura Purcell
    Laura Purcell May 09, 2014

    cant afford to call tech, but thanks

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It's likely a capacitor issue. They fail regularly, especially when it's hot out. I had a fan capacitor go out on one of my 3 units last year and it cost close to $300 for an AC company to come out and fix it. I watched them fix it and it's something that you can do yourself if you know what you're doing and are careful to hook it up right. I have three AC units and another capacitor went out this year and I found a kit with detailed instructions with pictures and phone support at hvacrepairkits.com. It saved me over $200 on the capacitor replacement.

Posted on Aug 14, 2011

  • Laura Purcell
    Laura Purcell May 09, 2014

    we have three units and other 2 are working fine. they run downstairs. The upstairs one wont work and we have never used it for ac. we used it for heat this winter and it was fine and still wors for heat but we heat by gas.

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Check power to outside controls ,,, 240 volt to the bottom of the contactor and the 24volt to the contactor!

Posted on Dec 08, 2009

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The condenser fan motor could be blown and need to be replaced. That is a pretty easy diagnostic that a decent service technician could figure out. The parts should run maybe $100 plus the service technician's hourly labor rate.

Posted on Jun 19, 2009

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