Tried setting the relay switch on and off.
American standard furnace not working.
Check the blower door.
Heating will not come on.
Review our list of common ac furnace smells.
If this door is not secure or is missing the unit may not run appropriately.
Move your hand around the american standard furnace to see if there is any air circulating.
System mode not set to heat.
Open and close the blower door.
I saw the filter was dirty and full so i changed the filter which is 20 25 4 size big one.
If heating does not come on within 5 minutes check heating.
Other noises e g rattling humming thumping or scraping sounds could be a sign of undersized or flimsy duct work clogged filter or wear and tear on your system s internal components.
Turn the unit off and allow the line to thaw.
If you hear an unusual sound call your local dealer for service.
How to get your furnace ready for winter.
Loose connection to control or system.
If this air is not cool it is likely that the coils on your furnace have frozen.
Set mode to heat and raise the setpoint above room temperature.
Check repair connections.
If this keeps occurring you will need to contact your dealer or a repairman.
Minimum off time delay being enforced.
Turn the power for your american standard furnace on and off twice in 30 seconds.
This will reset any lockout issues on your furnace.