If it s blank someone may have turned it off.
Attic ac unit not working.
If your air conditioner is not working and the furnace or air handler is located in your attic you will need to inspect the drain pain located directly underneath the evaporator coil in your air conditioning system.
Your attic fan may not be turning on because of an electrical problem like a tripped circuit breaker a blown fuse or a bad connection.
Do not bypass the safety switch or you could have a huge water mess in your home.
Additionally if the capacitor is shared by the ac compressor as in the case of a dual capacitor your unit may experience further damage since the compressor may overheat.
If after changing the batteries the screen is.
Simply turn it back on and you should.
If your ac drain pan is full it may have triggered the float switch.
Underneath your air conditioner is a drain pan which is meant to accumulate any residual condensation that your ac wasn t able to drain out.
If you are unable to turn your thermostat on check and replace the batteries.
And what the heck is it.
If the attic fan isn t turning on it could be an electrical issue a problem with the thermostat or the motor of the fan that s not working.
If an ac unit continues running with a bad capacitor your fan motor will have to work much harder resulting in your motor burning out completely over time.
Where is the evaporator coil.
This switch could be the problem.
When the ac filters are clogged with dirt hair dust and other debris the airflow through the vents in your home may be reduced decreasing the efficiency of your air conditioning system.
If you suspect a problem check the following.
This can also happen if the ac filters are blocked by some furniture placed right in front of the system.
Check the screen on the thermostat.
If these items do not solve your problem call an hvac service professional to help.
We see it happen in attics where someone was moving boxes in and out of an attic and bumped the unit or pan.
See those copper lines going into your hvac system.
Typical items that clog condensation lines are algae muck and trash like insulation from the attic.