Furnace repair, maintenance and installation

NOTE: This is offered as useful information to our customers. We are not a customer service division of American Standard.

We are a small, family-owned company in Warrenville, Illinois. Our company is not a customer service phone line for American Standard.

We cannot take out-of-state calls and walk you through your troubleshooting issues.

The American Standard Customer Support line is 1-800-442-1902

You can also submit to the American Standard troubleshooting online contact form

DIY Troubleshooting

Sometimes furnaces breakdown and you need to call for some emergency furnace repair.

Before you call your HVAC repair service, take a moment to view our basic troubleshooting guide. It’s possible you may be able to take care of common furnace issues yourself and save money on a service call.

This list was created for our preferred furnace, the American Standard brand, which we install, maintain and repair, but most of these tips will apply to any furnace brand.


Check the thermostat

Anytime you have furnace problems, your first step should be to check the thermostat. Make sure that the thermostat temperature is set higher than room temperature and also that the heat is turned on. You’d be surprised how many calls we’ve had where the problem was the heat was turned off! Turn the fan switch to the on position and if the fan doesn’t turn on, it’s possible the furnace isn’t getting power or the motor is broken.

Is the gas turned off?

Your utility company cannot turn off your heat during the cold winter months, but sometimes the gas may be turned off for other reasons. Call your gas company to check if construction work in your area could be the cause of the furnace not working. If so, the gas company will be able to let you know when it will be back on or when they can repair the issue.

Programmable thermostatCheck the power

Start by checking the breaker in your electrical panel. If the breaker was tripped, check for loose connections before turning it back on. Make sure that the furnace switch is turned on. The switch is usually located in the basement, near the furnace or the basement stairs.

Check the plug

Check to see if your furnace unit is unplugged. If recent work has been done in the area around your furnace, it’s possible workers may have unplugged your unit to use the outlet. Sure it sounds stupid, but it does happen.
American Standard Platinum Furnace
Related: Common Furnace Problems

Check the filter

A dirty filter can cause your furnace to stop working. Change your filter and wait 30 minutes before hitting the reset button. If the unit still doesn’t start, try the reset button once and wait 30 more minutes. Ensure that your furnace door is on properly after changing the filter as this may prevent the furnace from starting.

Related: How to get your furnace ready for winter

Toggle the power

Turn the power for your American Standard Furnace on and off twice in 30 seconds. This will reset any lockout issues on your furnace.

Check the blower door

Open and close the blower door. If this door is not secure or is missing, the unit may not run appropriately.

Check the pilot light

If your furnace has a standing pilot light, make sure that it’s lit. You should be able to see it when you open the combustion chamber door. If it’s out, follow the furnace lighting instructions and re-light.

Related: How to relight a gas furnace pilot light

Check your manual

Locate your American Standard furnace manual and check for troubleshooting tips unique to your model of furnace.

Check for vent blockage

If you’ve checked all of the above, see if any debris – snow, ice, weeds or grass – are blocking your furnace venting.


A Climate Services & Systems Inc.Do you need help getting your furnace working again?

Contact us online or phone 630-393-9500

We serve Warrenville, Carol Stream, Downers Grove, Geneva, Lombard, West Chicago, Naperville, and Batavia and nearby communities.