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  1. HVAC
    I replaced a digital Honeywell thermostat th1110D1000 with a lux tx9600tsa. I followed the diagram instructions for a conventional non heat pump, as those were the only wires that the Honeywell used. Btw the Honeywell did not use batteries, it fed from the wall. The new Lux is not working, it...
  2. HVAC
    I’m trying to replace my girlfriend’s old thermostat with a new programmable thermostat. I did this last night, but I couldn’t get the AC to come on… I’m hoping someone will see my error. Many thanks, Specs: Carrier: Heat Pump with Cooling Model # FA4BNF018 Product FA4BNF018 010 AAAA...
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