Question about Honeywell Programmable Thermostat Heater

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Blower not working with new thermostat

I am replacing an old turn dial Honeywell thermostat with a new programmable ATX500 series thermostat. I have an extra blue wire that I have tapped off, but on the old thermostat blue went to green and the green went to a 'H' terminal. Long and short I need to figure out how to wire this thermostat so my blower will work.

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To get the fan to work, look at the heating system to see what termoinal the blue wire is connected to. It should be the "G" terminal. If so, connect the blue wire to the "G" terminal on the thermostat and then manualy switch the thermostat to "Fan On". Indicate what terminals you have on your new thermonsta ie "G" "R" "Y" "C" "W" etc... For a fan to work, typically you connect "R" to "G" on the furnace.

Posted on Nov 07, 2008

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