Just like any appliance, your furnace is likely to give off warning signs before there's a complete breakdown. It's important to recognize those signs so you can step in and get repairs done for furnace problems before that major breakdown occurs in the middle of a cold spell.
Here are some signs to watch out for:
1. Your home is not as warm as it should be. Many things can be causing your heating system to fail at keeping your house warm, including the fact that your furnace may be aging to the point that it needs to be replaced. Here are some things to check:
- Make sure the unit is turned on.
- Change the air filter. The furnace won't work right with a dirty filter.
- Adjust the thermostat to see if the heat comes on. It could be that the thermostat is failing.
2. Gas/electric bills are spiking. Furnaces lose efficiency as they age and may need to run longer to achieve thermostat set points. If your furnace is more than 10 years old, it could be time for a change.
3. There's been a significant rise in the need for repairs. If you've noticed that you've needed to call the HVAC tech to service your furnace more frequently over the past two years, it could be a sign that parts are wearing out. Be aware that as furnaces age, it becomes harder to get replacement parts, just like with a car.
4. The furnace is making strange noises. Of course, this can be a sign for any appliance that it needs attention, and a whole host of things may be going wrong.
5. The furnace flame is the wrong color. A yellow instead of a blue flame is a sign that carbon monoxide (CO) may be leaking. Also, look for rusting on flue pipes or other connections. A crack in the heat exchanger could also be leaking CO. Small amounts of water at the base of the vent, flue pipe, or chimney may also signify CO leaks.
For more on furnace problems you may be experiencing, contact Sherlock Plumbing, Heating & Air. We serve San Diego and the surrounding area.