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Are you sure the brown went to O and not C on old thermostat?O is a reversing valve terminal for a heat pump. Can you look in furnace and verify where each wire is connected there?
We want to know for sure before attaching it.The control board will be in blower panel.
Ok if you do not have ac, Y is not necessary. Tape that brown off at thermostat, Connect only red to RH, Green to G and white to W1
Ok so you currently have wired correctly.Are you still getting an error code or just does not seem to be heating?
OK issue may be with furnace. If you turn thermostat to fan on, does blower come on?
Lets do this. Either at thermostat or on furnace board connect R and W together.If at thermostat, just loosen and put white and red under one screw.If at board jump terminals on board as shown below.
Ok issue is definitely with thermostat then as we are bypassing by doing that.
And you are sure we have Red to RH, White to W1 and Green to G at thermostat and furnace correct?
Nothing else but these there
Check the setting screen again and make sure that error is cleared and we don't have any more erros like "Common wire needed" or anything
When this happens are there any error codes on the furnace? It is strange that heat works fine when called for by jumping terminals yet does not by call from thermostat. Once thermostat signals R and W at furnace, it is up to the furnace as to when to turn blower on which should not happen until burners are lit.
You may have a bad thermostat out of box.The thermostat is basically a switch.It appears on call for heat it is sending signal from R to G same as in Fan on mode
Sounds good. Tell them what we have done.I am a licensed HVAC contractor.We will go from here.Tell them about connecting R and W wires at thermostat and that heat works properly but when connected to thermostat terminals, only blower come son when we call for heat. Look forward to hearing back.