To keep your furnace operating at its best, it’s important to have it inspected regularly. Ideally, you’ll want an HVAC technician to look at it twice a year (in the spring and fall) so that you can resolve any relatively small problems before they become bigger (and more expensive) to fix.
What happens during a furnace inspection? There is much more to it than changing your filter and making sure that your thermostat works properly. Here is a list of some of the work the technician will accomplish during the inspection.
- Inspect and clean the furnace’s blower motor, along with the wheel and housing.
- Check the combustion motor for any obstructions and lint. Clean it if necessary.
- On a gas furnace, the technician will check for any gas leaks.
- Perform an inspection on the condensate lines and the pan. If the pan needs draining, the technician will do so.
- Check the evaporator coil.
- Inspect the burner; clean it if necessary.
- Check the ignition, the safety controls and adjust as necessary.
- Perform an inspection on the heat elements/heat exchanger.
- Check the flue system for corrosion.
- Inspect all electrical systems, including the control box, the connections and the wiring.
- Check the air filters, and replace if necessary.
- Examine the ductwork for leaks.
- Run system startup to look for errors.
- Listen for any sounds that may indicate a problem.
- Be mindful of any unusual odors. If any are detected, track down their source.
- Check the furnace system pressures (including high and low side, as well as manifold).
- Measure temperature rise and adjust.
- Inspect the vent system while the furnace is on.