David DeFalco
I have a AT-8500 I got it from a pool place it was supposed to have been factory refurbished after I hooked it up. it would run for a few then when the compressor kick on it would blow the circuit breaker. At first I thought it was a faulty breaker changed that even went up to a 50 amp same thing. called them. They sent out a service tec. he change a couple things and that didn't work. They finally gave up and sent my money back and told me to do what ever with it. Now I must say this guy isn't a hvac mechanic.  HELP!!
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