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HVAC Wiring There are two wire cables. One has 4-wires going to the thermostat The other has 2-wires Looking at the 4-wire cable the white wire...

Best not to post your email as you will quickly get on spam lists. Go to advanced then you can upload pics via the manage attachments button at the...

I am trying to add a Honeywell WiFi thermostat. Originally the thermostat had 4-wires. I ran a 6-wire cable (wanted a spare) so I could use 5-wires....

Good day, I was out of town for the last week (Easter with family). Let me know if this makes sense and is the way I should be doing the hookup?...

What happened to running a new thermostat cable? Assume you put the 24vac adapter on Rc and C connectors. A 24vac adapter is safe for a heat...

oops

I figured out what it was. My beloved landlady, who has no business trying to fix ANYthing, took the cover off the furnace and the safety plunger...

THANK YOU very much for replying. I installed a 24V ac adapter to provide the power to the thermostat. The thermostat now has power and I have...

Should be fine. With a heat pump you should currently have R, O, G, Y at the thermostat and need to add a C for the new WiFi thermostat. Verify...