Wiring a 2 wire thermostat to a 4 wire system
I have a gas furnace equipped with central air.The compressor is shot in the AC unit,and I needed to replace the thermostat so I bought a heating only thermostat.I have the blower and the w wires together on the w terminal designation and the rh on the r terminal designation, and I have the y wire taped off and useless. The system works except the blower seems to come on first and run for a while before the heat kicks in. example: This morning I noticed the blower running and blowing cold air,so I looked to see if the pilot was still lit which it was,then I turned the thermostat up a couple of degrees and the heat kicked on.when the house reached temp. the heat and blower shut off together. Any ideas or is this normal? Thank You