Need help figuring out why the red wire to my thermostat has no voltage. Seeking to understand before I call a tech. Is the transformer that supplies the 24V to the thermostat in the furnace? Thanks in advance.
Typically the transformer is inside of the furnace. Not always, but usually. You (or probably better yet, your HVAC tech) will need to do a little thing called "troubleshooting" to find out what the issue is. This usually involves following a wiring diagram and using a voltmeter to check different parts of the system.Need help figuring out why the red wire to my thermostat has no voltage. Seeking to understand before I call a tech. Is the transformer that supplies the 24V to the thermostat in the furnace? Thanks in advance.
Or 2 fingers and a good ground...You need 2 wires for a reading?
Good point!Or 2 fingers and a good ground...op:
Thank you for the info...Typically the transformer is inside of the furnace. Not always, but usually. You (or probably better yet, your HVAC tech) will need to do a little thing called "troubleshooting" to find out what the issue is. This usually involves following a wiring diagram and using a voltmeter to check different parts of the system.