We got a Lux Programmable TX9000a. It installed it in November and heat worked fine all winter. Today I tried to turn on A/C and it didn't work (it is 90 where we live). I tried looking at wiring and perhaps a mis-wired. I am not sure. I have 5 wires and I have two units outside (heat pump and...

Just insatlled a Lux TX1500 thermostat the fan works the air conditioning works but heat does not. Followed wiring diagram.Not sure what to do or try?

I am trying to put in a Lux TX1500E thermostat, replacing a trane weathertron. I have a humidistat attached that will control the thermostat. The trane wiring is: g-green, o-orange, x2 looped to u, y-black, t-brown (humidistatwire), r-red (humidistat wire), w-white, u-looped to x2, f--empty,...

I have a lux 1500 thermostat. When I turn the heat on, I hear it starting up but there isn't any heat coming through the vents. At 1st Filter was flashing on the thermostat so I replaced it. I also replaced the batteries. I t worked well for about 5 minutes then nothing. I turned it off then back...

I have a Janitrol A/C and heat pump system. I replaced the thermostat with a Lux T9000LC The A/C works fine, but the heater does not. I have it wired as follows: G - Green Y - Yellow W - White RH - Pink B -