Working on heating and cooling systems can pose dangers you may not be aware of. It's important to be aware of the following several safety factors:
- Before doing any work on any type of heating or cooling system, make sure all power to the system is turned off. At the main electrical entrance panel, trip the circuit breaker or remove the fuse that controls the power to the unit. If you're not sure which circuit the system is on, remove the main fuse or trip the main circuit breaker to cut off all power to the house. Some furnaces have a separate power entrance, usually at a different panel near the main entrance panel. If a separate panel is present, remove the fuse or trip the breaker there.
- If the fuse blows or the circuit trips repeatedly when the furnace or air conditioner turns on, there is a problem in the electrical system. In this case, do not try to fix the furnace. Call a professional service person.
- If the unit uses gas and there is a smell of gas in your home, do not try to shut off the gas or turn any lights on or off. Get out of the house, leaving the door open, and immediately call the gas company or the fire department to report a leak. Do not reenter your home.
- To keep your heating and cooling systems in top shape, have them professionally serviced once a year. The best time to have a furnace serviced is at the end of the heating season. Because this is the off-season, you can often get a discount, and service is likely to be prompt. Have your air conditioner checked at the same time.
Dirt is the biggest enemy of your home's heating and cooling system. It can waste fuel and drastically lower efficiency. Dirt affects all three basic components of the system, so cleaning is the most important part of regular maintenance. Lubrication and belt adjustment at the furnace are also important. The heat/cold source is the most complicated part of the heating and cooling system, and it's the part most likely to suffer from neglect. Problems in this area may also lead to distribution problems. Whatever heat/cold source your system uses, give it regular attention to prevent problems.The safety tips and maintenance techniques in this article will give you a good head-start on taking care of your heating and cooling systems.©Publications International, Ltd.