Armstrong furnace shuts off

When your furnace shuts off, it might just be due to a reset button that needs to be pressed. Press the reset button on the front of the furnace, and then turn the power back on. If this doesn’t work, you may need a professional furnace repair specialist for help.

You don’t want your home to get too cold in the winter time so make sure you contact your local heating company when you notice your furnace shutting off.

The first thing to check is the gas pressure switch. You will find this switch near the gas valve. If you can’t find it, look for a small rectangular box with 2 wires and 2 screws on it. Next, open the cover and inspect the contacts to see if they are clean and free of corrosion or debris

– if they are, close the cover and try again. If not, turn off the power to the furnace and wait 5 minutes before turning back on. Then check for any blown fuses in your electrical panel

– if you still have problems then contact an electrician because this might be a more serious problem than just a dirty wire or bad fuse

This article helps you diagnose the issue and fix it.


A faulty thermostat will make your furnace shut off, so first check the thermostat and make sure it’s set to a temperature that is not too high or too low.

-Blower Motor:

If the furnace shuts off right after it starts, inspect the blower motor for any damage to wires, blades or bearings. Replace if necessary.


If your heater shuts off while heating and won’t restart until you flip a breaker switch, which is an indication that the timer needs to be replaced.

“Inspections, Installations, Repairs & Maintenance”