If you want to ensure that your furnace is able to carry you and your family throughout the entire winter season, then it is important that you pay careful attention to certain things. Your furnace will let you know when it is "hurting" and needs help from you. It is up to you, though, to catch these signals and contact the appropriate party to get the help that the furnace needs so that it continues providing the heat that your family and home needs. Keep reading to learn some of the signs that warrant a service call.
Out-Of-The-Ordinary and/or Persistent Noises
When a furnace comes on and off, it will make a little bit of noise. However, you want to pay attention to any weird or persistent noises that your furnace may make. If you hear any vibrating or rattling, these noises could be indicative of something small like a loose panel or something more serious like a cracked heat exchanger, which could allow dangerous toxins to leak into the air. Scaping noises may be a sign that the ball bearings have worn out. If this is the case, you should avoid further damage by switching off the furnace. If you notice a high-pitched squealing sound, this is likely indicative of the bearings requiring lubrication or that the blower belt has become loose.
Yellow Pilot Light
As a general rule, the pilot light on your furnace is blue. If the color of the pilot light is yellow, then this means that the gas is not completely combusting. Generally, this is a result of poor airflow. Unfortunately, this means that there is a chance of carbon monoxide leaking into the home. In addition, you should watch for soot streaks close to the furnace, excessive amounts of rust on ducting and pipes near the furnace, and excess moisture throughout the home.
When you adjust the thermostat dial and the furnace does not come on or the furnace does not run properly, you may have a defective thermostat. You may also have a problem with some rooms being too cold or too hot. Some other signs of a defective thermostat are issues with the pilot light and ducting leaks.
If you notice any of the aforementioned signs, you are in need of furnace repair. Contact a professional to get the necessary issues taken care of before they lead to bigger problems.