The first thing you will want to do is to check the electrical panel to see if any breakers are off or tripped.
Wall mounted thermostat dial seems loose.
These include a tripped breaker a loose connection a dirty thermostat or a bad battery in your digital thermostat.
If everything looks ok then check the battery in your thermostat if it is a digital model.
If you see dust being blown out this may have been your problem.
Change your wall thermostat batteries once a year or when the low battery indicator appears on the digital display.
It should come off easily.
Basically it seems as though the two tabs at the top of the display aren t clicking into place.
If it is a loose wire turn the ac unit off by switching the breaker.
Thermostatscan be a little tricky but this is a pretty good plain answer what.
Turn the thermostat off first and remove it from the wall base.
When there is a signal for heat the dial seems to get stuck and hums until i gently mov.
Get a can of compressed air the kind used to clean computer keyboards and blow it out.
I tried pushing just about as hard as i felt comfortable pushing but it still seems to sit crooked and feels very loose.
Often when installing a thermostat people have no or little idea of what to do.
It was dialed up high to heat an empty house this winter for three days so a new rug being installend on a cold basement floor would warm up and bubbles in t.