Not Cooling after new thermostat
#1
02-25-21, 09:14 AM
Not Cooling after new thermostat
Hey Guys, I recently bought and installed a digital thermostat to replace the really old one with the lever. I wired it up to the best of my knowledge and now when it is on cool, I get fan only. How do I troubleshoot this?
#3
02-25-21, 09:25 AM
Here is the info that I have:
5 wires at thermostat
white
yellow
red
black
green
For the old thermostat White was not used.
On the new thermostat, have red to RC/RH
Green to G
Black to W ( this is the only way the heat would work )
Yellow to Y
I can check what the outside unit is when i get home. the inside unit is quite hard to get to. Im on bottom floor and it is in between the floors.
5 wires at thermostat
white
yellow
red
black
green
For the old thermostat White was not used.
On the new thermostat, have red to RC/RH
Green to G
Black to W ( this is the only way the heat would work )
Yellow to Y
I can check what the outside unit is when i get home. the inside unit is quite hard to get to. Im on bottom floor and it is in between the floors.
#4
02-25-21, 10:10 PM
Group Moderator
Welcome to the forums.
Ideally we'd need to know how the old stat was wired.
A heat pump is where the outside units runs in the winter to create heat.
If not that then possibly a gas furnace.
Then we need to know what the new stat is as it will need to be programmed if you have a heat pump.
Be careful.... creating shorts can damage your system.
Ideally we'd need to know how the old stat was wired.
A heat pump is where the outside units runs in the winter to create heat.
If not that then possibly a gas furnace.
Then we need to know what the new stat is as it will need to be programmed if you have a heat pump.
Be careful.... creating shorts can damage your system.
