Check the pilot light.
American standard fan not working.
No heat insufficient heat.
If the relay board isn t working properly the fan might not run.
This will reset any lockout issues on your furnace.
The relay board provides voltage to many components of the air conditioner including the fan motor.
Turn the unit off and allow the line to thaw.
If this air is not cool it is likely that the coils on your furnace have frozen.
1 bad fan motor 2 bad capacitor 3 bad control board or fan relay if a separate relay is involved.
It s possible that it is simply not getting power or that the capacitor is dead but the condenser fan motor itself is.
Open and close the blower door.
Purpose of the fan center relay.
Turn the power for your american standard furnace on and off twice in 30 seconds.
No indoor fan fan not running fan not blowing no airflow.
First make sure there is power to the indoor unit and that a switch or breaker isn t off.
After ruling out all of the simple problems above the most likely cause of a furnace not blowing air is a problem with the blower fan itself which if you remember is the fan that circulates your house s air over the heated coils.
However you want to word it if your indoor fan isn t working it could be several things.
Was any work done on your fuel or electricity lines recently.
A non running fan can be one of three things.
Stopping the furnace and the third attempt will show up in the blinking light.
Before replacing the board make sure you check more commonly defective parts particularly the fan motor capacitor and the fan motor itself.
Relay boards are often misdiagnosed.
If this keeps occurring you will need to contact your dealer or a repairman.
Move your hand around the american standard furnace to see if there is any air circulating.
Check to see if your gas or electricity has been turned off.
Check your furnace blower fan.
Do you have a new or newly remodeled home.
Is your ac fan not working or spinning.
Check that your thermostat is set to cooling or heating mode and not set to off make sure the thermostat is set to the right setting and temperature.
The purpose of the fan center relay is to provide a low voltage control 24 volts to control a relay that can be used to control two speed blower motors and auxiliary circuits in heating or cooling equipment many of the newer furnaces do not have fan center relays but many of the older furnaces and some new furnaces still do.
Check the blower door.