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Experiencing problems with your furnace?

Every year, many Longmont residents call mechanical maintenance technicians to assist with a wide range of HVAC problems. Whether you’re dealing with a residential or commercial system, furnaces are typically vulnerable to a set of common issues.

Calling an HVAC technician offering reliable furnace repair in Longmont may help troubleshoot the problem and resolve the underlying issues. By familiarizing yourself with some common issues your furnace might experience can help identify them sooner, so you can take preventative actions to stop them from becoming more significant problems.

For example, your furnace filter will start to accumulate debris and dust over time. Dirty or clogged filters are one of the primary causes of heating and cooling failures in furnaces. Dirt restricts the airflow through the filter, which forces the furnace to work harder than ever at controlling the temperature of your home.

Furnace Filters Have A Lifespan

Most HVAC professionals recommend you change your furnace filters once every month to three months. Beyond this, your furnace filters will start to become inefficient and ultimately fail.

You may be shocked to learn that simple and inexpensive component like a furnace filter can have a substantial impact on air quality, as well as equipment life-span.

Depending on the brand and specific model you opt for, a furnace filter itself can cost anywhere between $15 to $30. This is a small price to be paid even if you’re replacing your furnace monthly when you consider the cost of a new furnace. If not replaced in a timely manner, neglecting your furnace filter can result in damage that could cost hundreds of dollars or more to repair.

AC System

Other Common Problems With HVAC Systems

Some other issues that may indicate your system needs to be tuned-up include inconsistent heating or cooling, frequent on/off cycles, musty or moldy odor All of these items may require professional examination, as they could be signs of a larger problem with your system.

Wear and tear of any one component often result in strain on other parts too because they have to work harder to produce the same level of cooling. Furnaces are usually built to last for many years, but neglected issues may cause severe damage.

A damaged heat exchanger, for example, may require a complete replacement. Obviously, the costs to replace an entire system due to a cracked heat exchanger could become quite expensive.

Why would a heat exchanger crack?

Heat exchangers can crack because the metal continually expands and contracts due to the hot gases inside. Additionally, limited airflow or a non-functioning blower may also cause temperatures to spike and eventually lead to cracking of the heat exchanger.

Many problems related to HVAC systems may not be able to be identified without an on-site inspection.

Regular inspection of your furnace system may help identify problems and prevent expensive repair costs. For example, strange noises like rattling, rumbling or high-pitched squeaking my indicate that some parts may be working themselves loose.

Another common issue with erratic heating within a home is a faulty thermostat or a furnace that’s too small for a specific application.

Heat Pumps vs. Furnaces

If you’re looking for an alternative to a furnace you might want to consider a heat pump. Heat pumps are alternatives to furnaces and air conditioners that provide heating and cooling functions by removing heat rather than generating it.

Like furnaces, heat pump energy efficiency ratings may give an accurate idea of energy consumption of the specific pump in question; however, if you’re not familiar with the technical aspects of heat pump efficiency, it may be best to discuss this with an HVAC professional. They can answer many common questions like this.

Another benefit of heat pumps is that can help dry out, or dehumidify, an area in your home without consuming excessive energy.


If you have not scheduled a preventative or annual repair for your furnace or air conditioning system, it might be worth the cost of a service call.

By contacting a professional HVAC contractor, you may also be able to find spare parts while warranty periods are still valid. Though OEM parts may not carry the brand name of your specific unit, you may be able to save a considerable amount of money on replacement components.

It’s essential to understand that some problems, such as ignition or pilot issues, should always be completed by a professional. When dealing with gas lines or systems that rely on combustion can be deadly if not handled properly. When in doubt, give a reputable HVAC contractor a call; they will be able to suggest the best ways to resolve your system’s specific problems.

Stone Heating & Air is happy to offer excellent furnace repair services in Longmont. Call us today to schedule one of our technicians to come out and visit your home.