Electrical Questions? Ask an Electrician Online.
Hello my name is ***** ***** I'll be assisting you today.
I assume you were replacing a thermostat. How many wires and what color were going to the old stat?
Yes, the following are the connections that should be made on the back of the new stat.
Is the battery installed in the back of the thermostat?
It won't function properly without it.
The blue wire is the "common" wire coming from the transformer. It is not needed on this thermostat.
When you disconnected the old thermostat did you note which color wire was going to which "letter" on the back?
The left switch on the bottom should be in the 'cool' position and the right switch should be in 'auto'. Use the up and down buttons on the front to lower the temperature setting to 65 for testing purposes.
It should then say "cooling on" below the displayed temperature.
If that doesn't work try switching the right fan switch to "on"
If the cooling on is blinking:
This feature helps prevent damage to the compressor in your air conditioning or heat pump system. Damage can occur if the compressor is restarted too soon after shutdown. This feature forces the compressor to wait 5 minutes before restarting. During the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump). When the safe wait time has elapsed, the message stops flashing and the compressor turns on.
Remove the face of the thermostat and remove both batteries
When was the last time the AC was on and working?
A few other things you could check:
I hope those suggestions will solve the problem.
If you have anymore questions feel free to ask, otherwise please remember to rate my service before you log off.
Have a great evening.
Hi just checking in to see if the AC is working now.
What happened when you connected red, green, & yellow together?
After the wires were twisted together the power should have been turned back on.