Dirty furnace filters are one of the most common causes of a furnace failure. A dirty furnace filter can limit the airflow through your furnace and cause it to overheat. If you suspect a dirty air filter, change the filter, press the reset button (if your furnace has one) and see whether your furnace begins to emit heated air. Change your furnace filters regularly — pros recommend changing them once a month — to ensure that your furnace continues to work properly. Unaddressed, dirty furnace filters can cause extensive, and expensive, damage to your home’s heating system.
Next check and clean the furnace’s flame sensor. The video below shows you how—note that this guy fixes it in about 5 minutes. We would probably use a little bit of emory paper, but he cleans the sensor with a 5-dollar bill. Another video further down the page under the discussion of “If your furnace keeps shutting off after about 5 minutes” shows the same project with a different brand of furnace.
When you need a new air conditioner installation, Seattle furnace repair, or want to schedule routine water heater maintenance, there is one company to call: Bob’s Heating & Air Conditioning. We have years of experience with heating, air conditioning and water heater services, and we can ensure that your home is comfortable throughout the entire year. Contact us today to schedule the high–quality HVAC and water heater services you deserve.

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The flame sensor safeguards your furnace against the unsafe burning of fuel, and a dirty flame sensor may cause your furnace to function improperly. Typically, the flame sensor comes in the form of a rod that can be found near the back of the furnace, right in the path of the burner. To clean the sensor, turn off power to the furnace at the breaker box. Then, if possible, remove the sensor from the furnace. Scrub the sensor gently to remove dust and other residues. Finally, reattach the sensor and resume power to the furnace.
In this video I show you a few things to look for to fix your furnace. It's expensive to call a repair man and most of the time is not needed. I am not an expert, just someone trying to share my experience with you to save some money. Always turn your power to your furnace off before tampering with things. This would be a good video to start with because I try to show a general idea of how a furnace works. When all else fails, you have to call an expert, but first try the steps in this video.
As a technical industry, the heating and cooling field is associated with annual advances. New energies make our industry an exciting place to work. Our team thrives on keeping up to date with all changes in the HVAC field. We are here to share our knowledge with each customer. When you are ready to update your HVAC system, we can help you select the ideal system for your home.
A pinging or popping sound coming from the duct work can come from thermal expansion—the ductwork expanding and contracting as it heats and cools.  Or, air blowing past a loose flap of metal can make the sound. Track along the duct runs, listening for the sound. If you locate it, make a small dent in the sheet metal to provide a more rigid surface that’s less likely to move as it heats and cools.
There’s a common misconception that you can save money by shutting the vents (supply registers) in rooms that aren’t being utilized. Resist the urge to close too many, as doing so can actually increase the pressure in your furnace, making it work harder to heat your home. This can lead to failed blower motors, mold or mildew in your ductwork, damage to the compressor, a cracked heat exchanger, and other problems. What Does a Furnace Tune-Up Include?
Have you experienced a summer without an air conditioning unit? Have you ever tried to get through the long, hot months of June, July and August with a faulty central air conditioning unit? A fully functioning A/C unit is a necessity, particularly when the mercury starts to rise. We provide replacement and installation of old and inefficient central, air conditioning units, giving you the peace of mind that comes with a reliable new air conditioning system. Instead of continuing expensive repairs on an old system and the stress of never knowing when your system might stop working again, consider installing a new air conditioning system from Sears Home Services.

Next check and clean the furnace’s flame sensor. The video below shows you how—note that this guy fixes it in about 5 minutes. We would probably use a little bit of emory paper, but he cleans the sensor with a 5-dollar bill. Another video further down the page under the discussion of “If your furnace keeps shutting off after about 5 minutes” shows the same project with a different brand of furnace.

Relax—ABC Plumbing, Heating, Cooling & Electric is here for you when you need us most! Our highly trained, background-checked technicians perform heating and air conditioning repairs quickly and efficiently to keep your family warm and cozy all winter long. With over 65 years of experience, you can trust that we’ll fix your furnace correctly the first time.
Whether you are in need of new installation, system replacement, seasonal maintenance, or prompt repair, M and M, Heating & Cooling, Plumbing & Electrical lives up to your highest expectations for quality, pricing, reliability, and quick turnaround on all projects.  And our commitment isn’t limited to regular business hours.  We’re always available when you need us, providing 24 hour Emergency Service across Longmont, Dacono, Frederick, Firestone, Mead, Erie & Johnstown, CO.  Trust the #1 Rated and Certified – A/C, Heating, and Plumbing Experts.
Denver furnace repair is very common in the winter. Our availability 7 days a week is a major advantage. That is the main reason as to why we are a popular furnace repair company. In general, furnaces tend not to start at all or are cracking out cold air instead of heat. Contact us, your Denver furnace repair company so that we can diagnose the problem and set you up with a preventative maintenance package. Click HERE to learn more about our furnace related services.
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