I just received my Alarm.com Thermostat. I was able to set everything up and connected to Alarm.com but when I tested the heat and the AC, the AC setting was blowing heat. I have re-wired and installed numerous thermostats before with no issues but cannot figure this out. The thermostat itself shows the AC setting, Alarm.com shows AC and the temp (and temp range) were set below the current temperature. The fan on the outside sender unit runs, just doesn’t blow cold air.
I have electric heat and AC. The old thermostat was a Honeywell WiFi thermostat. Wires on the Honeywell are: Red-R(jumper to RC), Orange-W, Yellow-Y, Green-G, Blue-C and White and Black wires BOTH into W2.
Wired per Alarm.com instructions with all wires, the Black wire had an E label so I taped it off and used the white wire for W2. When that didn’t work, I tried both wires in W2 as with the Honeywell. That didn’t work either.
Annoyed, I re-wired the Honeywell. AC works.
Any suggestions before I call an HVAC company to charge me ridiculous money for a basic task?