Came home this evening and found the house at 28 main level and 31 upstairs. Went outside to check the condenser and it was frozen, which surprised me given the heat. Turned it off and it defrosted in a half hour, but I think the evaporator had frozen too above the furnace since water is slowly melting around the furnace so I'll leave it off until I can get somebody out. I just had a tech last week to service the AC in advance of the heat wave, so everything should have been tip top. Just working too hard maybe?
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