Should you give your
HVAC systems an annual tune-up. Yes, you should. But only if you’re going to have the job done properly, because otherwise you risk thinking that everything’s been taken care of when, in fact, a disaster is getting ready to bring you down to earth – either when the temperature and humidity have just reached maximum discomfort levels or when it’s so cold you expect a polar bear to knock on your door and beg for shelter.
A Tune-Up is a series of inspections, with adjustment wherever the observed results are not what in the range they should be in. Like this:
Furnace and Heating System Inspections
- Electrical circuits
- Thermostat calibration
- Fan – does it turn on and off at the correct point in the cycle?
- Is the furnace venting safely? Is it switching off safely?
- Are there any gas leaks? How about the pressure – is that what it should be?
- Is the auto-ignition functioning properly? And is the gas burning as it should?
- The heat exchanger is designed to separate the warm air for circulation from the exhaust gases. So: is it doing that? And, if it turns out that it is, are those exhaust gases venting where they should be? Which is to say: outside?
- Is this a condensing furnace? If so, is the condensate draining away properly and safely?
- When all those tests have been done, does the temperature rise match what the equipment manufacturer says it should be?
Cooling System
- Electrical circuits
- Indoor Cooling System
- Thermostat calibration
- Condition of filters and blower assembly Can the blower motor be reached easily for oil check and renewal?
- Condition of drains
- Condition of ducts
- Does the system have zone control? If so, is it operating as it should?
- Outdoor Cooling System
- Condenser; condition of:
- Electrical connections
- Coil
- Fan – blade and motor
- Cabinet