Gas Furnace Repair: The Most Common Problems

Based on the fuel that they use to operate on, some of the most common gas furnaces used in the U.S. include natural gas furnaces, and to a much lesser extent oil furnaces, propane furnaces, and electric furnaces. Despite the fact that they are considered a bit expensive, gas furnaces are mostly preferred due to the fact that they provide a more eco-friendly way of heating single-family homes, multi-family dwellings, and office buildings more economically as compared to oil or propane furnaces. In simple terms, they are more advantageous in terms of clean energy and operating costs. They are also lower maintenance and offer a rather quiet operation alternative, not forgetting that they also provide even heating throughout the rooms in a building. Gas furnace repair is also not as involving as other types of heating systems and they are also quite convenient when it comes to installation if you have existing ductwork.
But then again, gas furnaces are as prone to common heating problems as are many other systems. As a matter of fact, some furnace problems may require replacing the unit rather than a simple furnace repair service. But what are some of the problems commonly associated with gas furnaces homeowners should know about before it comes to the point of needing an HVAC repair company? Below are pointers you should take note of about gas furnace repair: the most common problems encountered by homeowners.

Problem #1: No Heat from Furnace

It is also a common furnace problem where the unit fails to ignite and therefore produces no heat, meaning that the cool air inside the home is merely recirculated throughout your home. When this happens, it could be caused by a closed control valve, a tripped electric circuit, a faulty or blown fuse, a faulty thermostat, or a defective pilot light. Quite possibly you might need to replace the igniter or the flame sensor in the furnace. The no-heat problem can be a complex issue that only an experienced heating and air technician may be able to fix. When you notice that your gas furnace isn’t producing heat, your best option is to call a reputable furnace repair company for assistance to restore your home’s comfort levels.

Problem #2: Insufficient Heating

Insufficient or inconsistent heating is another frequently encountered problem many gas furnace owners experience. This can be caused by a dirty filter, poorly designed or installed ductwork, a loose blower belt (on older furnace) or both. Just as is the case with the “no-heat situation, gas furnace repair for insufficient heating requires being addressed by an experienced HVAC professional.

Problem #3: Furnace Switches On and Off Frequently

Sometimes referred to as rapid cycling or short-cycling, you may encounter a problem where your gas furnace frequently switches on and off. In most cases, this leaves you without your desired heating levels and can be both frustrating as well as difficult to diagnose for even experienced furnace repair technicians. This is sometimes caused by a dirty filter, a clogged blower, a defective motor, or a problem with the circuit board in the furnace. Gas furnace repair for rapid cycling issues may involve cleaning; filter replacement, replacing the main circuit board, or motor lubrication, just to name a few possibilities.

Problem #4: Pilot Light Or Ignition Problem

Most home heating systems, specifically older gas furnaces come with a pilot light, which is responsible for igniting the natural gas or fuel used by your furnace to run. Newer furnaces have something called a hot surface igniter instead of a pilot light. In case there is a problem with the pilot light and it fails to turn on, then your furnace may fail to run at all or may only circulate the cool air inside your home. This is often caused by insufficient gas flow, due to gas valve problems, damaged thermocouple, or a clogged pilot opening. This can also be addressed within a short time at an affordable cost by reputable furnace repair companies.
Be sure to research and choose your HVAC company carefully when , as the costs, quality of work, efficiency, and longevity of your heating equipment will depend on this.