How often you run your system, the system’s age, its make and model, and whether or not it was serviced regularly over the course of its life can all play a significant role in how long your system will last. Average air conditioner or furnace will typically last approximately 15-20 years.

Lennox, Resideo (Honeywell), Aprilaire, APCO 

Step 1. Make sure your thermostat is turned to cool & your set point is lower then the inside temperature.

Step 2. Check to make sure your breaker is on in your electrical panel.

Step 3. Check the electrical switch on the side of the furnace & see if it’s in the “On” position.

Step 1. Make sure the thermostat is set to Heat & the set temperature is above the inside temperature.

Step 2. Check to see if the breaker is tripped or in the off position in the electrical panel.

Step 3. Make sure the electrical switch on the side of the furnace is in the “On” position.