It's not fun when your furnace stops blowing warm air. The discomfort and cold nights are nothing to look forward to. You could try to turn the thermostat up but that's just a temporary fix, and you can't get your desired temperature.
Besides the discomfort, a faulty furnace also poses health threats to your family and pets. You need to contact a heating system repair expert when you notice that your home's heating system is defective.
Discover some reasons behind this problem.
Dirty air filters are often the main culprit for a faulty furnace. Furnace air filters trap dirt and debris from the air before it circulates into your indoor space. If you don't clean or change the filters regularly, they will eventually be covered in grime, soot, and dirt.
The debris blocks incoming warm air from the furnace, leaving you stuck with cold air. Besides inadequate heating, you're likely to notice the following signs when the furnace filters are clogged.
High Energy Consumption
With blocked filters, your furnace has to work harder to draw and circulate warm air inside your home. The system requires a lot more energy to maintain warm temperatures, hence the unexplainably high utility bills.
Contaminated Indoor Air
Once the air filters are full, they can no longer capture dirt and allergens from the air. Your indoor space becomes dustier, which can trigger allergy symptoms in your loved ones. Some members of your household may start to sneeze, cough, or develop itchy eyes. If anyone is asthmatic, the symptoms may worsen.
A Burning Smell
It's pretty normal for the heating system to produce a slight burning smell when you turn it on. But if the smell becomes stronger as time passes, your heating system might not have enough airflow, which causes it to overheat.
Contact an HVAC expert who can inspect your furnace and rule out dirty filters as the reason for the cold air in your house.
The Furnace Has Served Its Term
The average furnace lifespan is about 15 years. After your unit exceeds this period, it starts losing efficiency. Your furnace can no longer heat your home as you'd expect.
The longevity of your furnace depends on many factors, including:
- The size of the furnace compared to the size of your home
- The make and brand of the system
- The frequency of maintenance throughout its lifespan
Being diligent with furnace maintenance and repairs boosts the functionality of your heating system. If your furnace doesn't heat your house, breaks down frequently, and consumes more energy, it could be time to replace it.
Contact a local HVAC contractor.