HVAC systems are commonplace throughout the United States. Many Americans use them liberally during the sweltering heat of summer and the frigid cold of winter. In fact, according to Comfy Living, the 2019 global market size for heating, ventilation, and air conditioning was $240.8 billion. Unfortunately, these systems are liable to break over time with so much usage.

Do you find yourself constantly adjusting the thermostat to keep it at a comfortable temperature year-round? Do you hear a strange sound from the ducts? If so, something might be wrong with your heating and air conditioning system. Here are six signs that you need heating and air conditioning service.

1. Your House Is Not Heating

Heating and air conditioning systems control the temperature inside a building by balancing the amount of heat produced inside and outside. When you adjust your thermostat, this will activate your heating or air conditioning system. If you turn up the heat during a cold day, but still feel cold, then there might be something wrong with your heating system. This could be due to a number of reasons ranging from an internal component failing to the air ducts getting clogged. Either way, you should call a heating and air conditioning service company immediately.

2. Your Heating or Air Conditioning System Is Loud

If you hear an unusually loud humming noise coming from your heating or air conditioning system, there's a chance that the system is overworking to compensate for a potential internal issue. This is generally a good indicator that your system needs service. If the system continues to run like this, the noise may become louder and the machinery may become damaged.

3. Your Home Is Not Cooling

Air conditioning systems are built to handle even the hottest of summer days. However, if your home is not cooling down, you may have an issue. Double-check to make sure your AC is on. If it's indeed on, then see if you can feel any air coming out of the vents. If no air is coming out or if it's coming out unevenly, the vent may be blocked. This is certainly a case where you should call a heating and air conditioning service. They will need to inspect the vents and the air conditioning unit for potential issues.

4. There Is a Foul and Musty Smell

A heating and air conditioning system filters the air that comes into your home. If your heating and air conditioning system is not working correctly, you might experience a bad smell in your home. This can result from the dust particles carried into your home by air inside the ducts. Other symptoms indicating a problem with your heating and air conditioning system include stuffiness, headaches, and eye irritation. You should service your HVAC system if the smell coming from your home is terrible or if you experience these symptoms.

5. You Have Unusually High Electricity Bills

Your heating and air conditioning service provider will look at your electricity bills and provide a detailed report on the distribution of your electricity expenditure. If the bill is unusually high, it's possible that your heating or air conditioning system is malfunctioning. If the electricity bill is too high, it might indicate that your heat pump cannot perform its job correctly and that it needs to be repaired or replaced as a result.

6. Your HVAC System Is Not Turning On at All

Your HVAC system should turn on when the indoor temperature hits a certain threshold. If it doesn't, you should have your heating and air conditioning serviced at the earliest possible time. Sometimes this can be an issue with the thermostat. Other times, it's an issue with the unit itself. An HVAC professional will inspect your thermostat and system to see if they're working correctly. Your heating and air conditioning service provider will explain what went wrong and then estimate how much it will cost to get your system fixed or repaired.

If you're experiencing any of these six signs, it may be time to call an experienced and trusted heating and air conditioning service. Call Northstar Services today to learn more about our hHVAC services. Our trained professionals will work quickly and effectively to diagnose the problem and find a solution.