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Why Was My Furnace Red Tagged?

Red-tagging is when a heating and air conditioner technician shuts down your furnace, deeming it inoperable. Mainly, there are two types of red tags. Type A red tag implies that the gas supply will be shut off immediately since your furnace poses an imminent threat to your safety. Type B red tag gives a warning of about 30 to 40 days to have the problem fixed.

A furnace receives a red tag from a technician or a utility company because it is unsafe to operate. The cracked heat exchanger, blocked flue vents, and patchwork duct system may increase toxic and dangerous carbon monoxide levels. The urgency to fix the furnace is essential and has to be taken seriously to avoid casualties.

Heating Repair In Westminster, Garden Grove, Fountain Valley, CA and Surrounding Areas

Why Was Your Furnace Red-Tagged?

In most cases, the heat exchanger is usually the problem. The heat exchanger is a component in your furnace responsible for transferring heat from fuel combustion to the air circulating through your house. A cracked heat exchanger might allow carbon monoxide to leak from outside and into the air in your home. Carbon monoxide gas leak is a significant threat since it is odorless and hard to detect, which leads to death if exposed to it for long periods.

Other issues will also cause your furnace to be red-flagged such as the burner tube or gas valve having problems that may cause a gas leak that may lead to a fire hazard. An explosion may occur, causing it to be an unsafe condition for people in and around your home.

What to do When Your Furnace is Red-Tagged

The big question is, what do you do in such instances? It would be best to ask for a second opinion to get another set of eyes on the situation. Some companies have cameras installed with technology, allowing you to see what is going on as the technician is working while pointing out the flaw in the furnace.

If there is a crack, it will have to be exchanged no matter how small because the aperture cannot be sealed and will always be there. You may be required to replace the exchanger for half the price instead of buying a new furnace. Checking to see if the exchanger is still under warranty can buy you some time before purchasing a new furnace. Most warranties might extend for up to 20 years, which is enough to rethink purchasing a new furnace.

It is advisable to hire a well-licensed contractor with a good reputation. Service techs often find equipment so dangerous that they feel it is their duty and obligation to red-tag the furnace and shut it down, especially if it poses an immediate danger to life or property.

Your HVAC contractor will be the one to give you advice on whether to repair the furnace or purchase a new one. Sometimes the repairs may end up being way too expensive compared to buying a new one, especially if it is an old furnace that may operate at its lowest capacity causing many parts to fall apart altogether.

How to Prevent Being Red-Tagged

Furnaces require regular check-ups to ensure it is running efficiently and safely to prevent unnecessary hazards and costs. Make sure you are up to date with your maintenance services regularly. The furnace also requires proper care, for instance, cleaning the vents and replacing air filters every month—especially those that are dusty. The best way would be to clean a water filter with warm water and a cloth.

Adding a carbon monoxide detector can go a long way in notifying you of any leaks. Avoid relocating the furnace and knocking it while renovating to prevent minor damages that might cause issues after some time.

Even though red-tagging causes inconveniences, it is essential in improving and ensuring the safety of our homes. Waiting till winter to sort out the problem could leave you with no heat. Always seek a second opinion from an HVAC technician before purchasing or repairing your furnace.

It is always best to go with a little more capacity than recommended in the case of expansion tanks because it will not hurt your plumbing. If you are unfamiliar with the process, hiring a professional is always the best way to go. Plumbing services will help you decide on the best brand and size for expansion tanks and even cover maintenance duties.

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Our state-licensed and certified HVAC technicians are always available to help you.

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Customer Reviews

Claudia M.

Scott, along with his associate, Gabe, did a great job. They were both professional and friendly. Scott explained in enough detail to help me understand how my a/c unit works-he’s very informative. Have was a great help, cutting the time it took to clean and install the HVAC equipment. I liked that they were both pet friendly, that’s also important for me. I’ve been a customer of absolute Airflow for a couple of years and they are a great company …

Ty S.

Have had nothing but amazing experiences with Absolute Airflow from the beginning. We have had a few issues here and there but Absolute has always sent someone out quickly and stood behind their work. Most recently they sent out Spencer and he was the best technician we’ve ever had! He was extremely respectful and polite, he also took the time to thoroughly talk me through and help me understand the genesis of our various issues we were encountering. Definitely hope …

Ian S.

My requested service was set up by Marcus who came to my home to evaluate and was prepared with options and great prices for my water heater replacement. Was able to get an appointment within 3 days as there was no emergency. My install tech James was amazing, He was very respectful and maintained a clean and organized work area as the installation was in the home. The removal, prep, and installation of new water, gas, and venting took approximately …

Richard S.

I can’t express enough how impressed I am with this company and especially Anthony Belt. Anthony was so thorough and patient with my wife and me. The impressive part was he was able not only to identify all the problems with my heating and ac but went above and beyond to fix all of them! My electrical bills were over $500 a month during the ac months and now they are less than $200! Not only am I saving a …

Patrick K.

I haven’t posted any reviews in a long while but here I am thanks to SCOTT with Absolute Airflow. The warmer Cali weather is around the corner and as a responsible homeowner, I decided to get my HVAC system checked out and tuned up before the summer heat. Scott provided us with the full red carpet experience. His knowledge, quality and care put into his work, and professionalism were all outstanding. Replaced fan motor due to oil leak (a normal …

Liem H.

Outstanding experience from the start. I’ve been a member of Absolute Airflow for almost 2 years now. Since then, I’ve had my system maintained twice a year. Every service has been very thorough and professional. Each time, everything was explained to me in terms that I would understand, coupled with plenty of photo documentation. Which I appreciate so much. Knowing that I would have to replace my aging system. I dreaded the coming expense and experience. But my fears were …