Armstrong Air
Troubleshooting

Regular service and maintenance from your professional Armstrong Air dealer can help keep your system running at its best. However, as with any technology, problems can arise. This helpful troubleshooting checklist can help you try to solve the problem on your own. If you can’t solve it, or don’t feel comfortable attempting any of these procedures, please contact your dealer as soon as possible. They’ll be happy to help.

My home is not getting cool air

Potential problems

A circuit breaker may have been tripped in your home

Locate your circuit breaker box (or electrical panel). They are typically located on an inside wall at the back of the house. Check the circuit breaker box and make sure breakers are in the ON position. Also check that the disconnect switch (located near the air conditioner or heat pump) is ON. You may need to reset your circuit breaker.

Incorrect setting on your thermostat or your thermostat may simply be OFF

Check that your thermostat is ON and set to COOL.

Blocked filter

Check the furnace or air handler filter to see if it is blocked with dust and dirt. If so, change the filter. Remember to change your filter approximately once a month.

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My home is not getting heat

Potential problems

Your gas might not be on

Check the gas valve at your gas meter, the shutoff valve at the furnace and any other shutoff valves. If any are OFF, call the gas company or your local Armstrong Air dealer to have the gas valves turned back on.

Your system might be turned off or your unit might be unplugged

Check that all your HVAC equipment is plugged, including the outdoor unit and thermostat.

A circuit breaker may have been tripped in your home

Locate your circuit breaker box (or electrical panel). They are typically located on an inside wall at the back of the house. Check the circuit breaker box and make sure breakers are in the ON position. Also check that the disconnect switch (located near the air conditioner or heat pump) is ON. You may need to reset your circuit breaker.

Incorrect setting on your thermostat or your thermostat may simply be OFF

Check that your thermostat is ON and set to HEAT. Make sure that the thermostat is set higher than the indoor temperature currently showing on the thermostat.

Blocked filter

Check the furnace or air handler filter to see if it is blocked with dust and dirt. If so, change the filter. Remember to change your filter approximately once a month.

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There is no airflow

Potential problems

Blocked filter

Check all the filters in your HVAC system components. Follow the recommendations in your user’s manual for cleaning and replacing your filters.

Dirty coil may have frozen your system

Check your indoor unit and see if there is evidence of water below the unit. Feel for a cold surface on the indoor coil enclosure. You can turn OFF your thermostat for 1–3 hours to see if it will defrost. Contact your Armstrong Air dealer if the problem persists.

Dirty or blocked ductwork

Check your indoor unit to see (or hear) if the blower is running. Then go to different vents in your house to feel for airflow. If you do not feel any air, contact your local Armstrong Air dealer for duct cleaning services.

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The drain pan is overflowing

Potential problems

The overflow switch is likely not functioning

Turn your system OFF and contact your local Armstrong Air dealer.

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My unit runs all the time

Potential problems

Your thermostat setting might be too high or low

Adjust your thermostat during extremely hot or cold days so that your heating and cooling system doesn’t have to work so hard. If this is unsuccessful or you are uncomfortable, contact your local Armstrong Air dealer.

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My utility bills are higher than normal

Potential problems

Your system is not reaching its thermostat setting

If your outdoor temperatures are constantly in the extreme, you may experience higher-than-average utility bills as your system tries to keep up with extremely hot or cold weather conditions.

Your utility company may have had a recent rate increase

Check with your local utility company to ask about recent rate increases. Ask them about ways to conserve energy with your existing equipment. It may be time to think about upgrading your equipment for greater energy efficiency.

Are you using a new appliance that uses a lot of power (hot tub, pool heater, sauna, etc.)?

You may consider turning the appliance ON for shorter periods of time or completely OFF when not in use.