Question about Sanyo 09KHS51 Ductless Mini Split Air Conditioner

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No heat We had the mini split installed and have not needed the air conditioner yet. But now that I want the heat on, I can't get any. The indoor unit lights up and the fan comes on but only blows cold air. I have checked everything I dare to, and noticed that the outside unit doesn't seem to be running. I am reluctant to call the guy who installed it because he was not a happy guy to do it in the first place. But he was the builders choice. Any suggestions of things to check into myself?

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Re: no heat

From my experience, when a new heat pump unit doesn't switch over from one to another, its most often the thermostat isn't wired correctly. The reversing valve needs energized or the common isn't wired at the thermostat. As your installer was not a "happy" guy maybe he neglected to check this. Your best bet is to get your installation manual and the thermostat wiring guide, and check the connections. If you can read a schematic you may be able to figure it out. If this is a new construction, this should be covered under the warranty. Builder be damned Id make him fix it.

Posted on Nov 13, 2007

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