Get Trusted Furnace Repair For Your Shrewsbury Home

furnace blowing cold airIf you need heating installation, a heater tune-up, or a Shrewsbury NJ furnace repair, contact Lawes Company. Our HVAC techs have many years of experience and the necessary industry certifications. We have the knowledge and expertise to service all makes and models of heating systems. Best of all, our services are reasonably priced. If you need assistance, we offer free estimates as well as free second opinions. To schedule an appointment, give us a call today.

Why Is My Furnace Blowing Cold Air?

A malfunctioning furnace can be very frustrating.

If the heater isn’t working correctly, the home won’t be comfortable on cold, winter days. Fortunately, there are a few signs that can tell you that something is wrong with your heater. When furnace troubleshooting, one of the most straightforward signs to recognize is when the furnace is blowing cold air rather than hot air. In this article, you will learn a few of the reasons why this can happen.

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Malfunctioning Pilot Light Or Flame Sensor

Shrewsbury NJ heating system repair serviceIf you have an older furnace, it probably uses a pilot ignite system. If the pilot light is malfunctioning, the heating system will blow cold air rather than hot air. The first thing that you should check is the pilot light. If it is out, you have found the source of the problem. If it is lit, but it continually goes out, you will need to have an HVAC tech inspect the heating system. They will also clean out the system and make any necessary repairs.

If you have a newer heating system, it probably has an electric ignition system. These systems use a flame sensor to blow hot air. If the flame sensor is defective or dirty, your furnace will blow cold air. If this is the case, you will need to have the problem repaired by an experienced furnace repair near my location that has a good reputation.


When the ducts in your home are old, worn out, or damaged…

conditioned air will escape the ductwork. This situation can prevent the hot air from getting to the desired areas of the home. This problem is not uncommon. According to the Department of Energy, the average home loses between 20 to 30 percent of its conditioned air as a result of leaky ducts.

If your ductwork is old, you should hire an HVAC company to come to your home to inspect it. Ducts are usually behind the floors, ceilings, and the walls. The duct’s location can make it difficult for you to check them yourself. Hiring a professional to inspect and replace the worn or damaged ducts can save you money on your monthly heating costs.

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Clogged High-Efficiency Vent Pipes

In most cases, the placement of the vents pipes in high-efficiency furnaces are outdoors. Due to the location, the pipes can easily accumulate debris such as ice and snow. Over time, this can cause a clog. If the pipes are clogged, the heater will blow cold air, or it will shut down completely.

Thermostat Setting

thermostatYour thermostat setting has a lot to do with…

the temperature of the air that comes from the heater. The thermostat fan has a few settings. If your thermostat’s setting is “ON,” it is possible that it will blow cold air. The blower will constantly run, even if the furnace is not working. There is an easy fix for this problem. If you set the thermostat’s fan to “AUTO,” the blower will only operate when the heating system is turned on. When changing the setting, you should also check to make sure that the batteries in the thermostat are not dead.


Furnaces have a safety feature called the limit switch. If your furnace overheats, it will automatically turn off the burners. This safety feature allows the heater to cool down to a safe temperature. When the heating system shuts down, it will blow cold air. One primary reason that the furnace overheats is because the air filter is dirty. A dirty air filter will also make the system work much harder than it needs to. For this reason, it is so important to replace your air filter regularly. Regularly replacing the air filter will keep the home warm, save you money, and prolong the life of the furnace.

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Furnace Repair Service In Shrewsbury NJ

The most common reasons that your furnace is blowing cold air include:

  • Overheating
  • Clogged vent pipes
  • Wrong thermostat settings
  • Leaky ducts
  • A malfunctioning flame sensor or pilot

To be sure that your furnace is in proper, safe working condition, you should hire an HVAC technician to inspect, clean, and repair your system regularly. It is essential that you employ a qualified technician so that they can detect issues with the heating system early. Doing so will save you money, and it will prevent a complete furnace breakdown. It is best if you work with the best HVAC company in your area.

When you are looking for “furnace repair near me”, you should give Lawes Company a call. Our technicians can inspect your furnace and quickly figure out why it is blowing cold air. The tech will provide you with the necessary information regarding the repair, and they will give you all of your options. The last thing that you want is for your heating system to break down in the middle of winter. If you work with us, you can be sure that your furnace will work well all winter long. Best of all, we offer fast service and affordable furnace repair cost. Give us a call today to schedule an appointment.

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Some of the areas we service include: Eatontown, Fort Monmouth, Oceanport, Shrewsbury and these zip codes: 07724, 07703, 07757, 07702 as well as all surrounding areas in Monmouth County, New Jersey.

Contact us now at (732) 741-6300 to find out more!