HVAC Emergency: Determining the Symptoms of a Furnace Problem

HVAC Emergency: Determining the Symptoms of a Furnace Problem

The furnace is one of the most important electronic devices in homes, where people use furnaces for almost half of the year to keep them warm from dead winter. Usually, furnaces do not fail to operate if installed properly and maintained by some professionals. Sometimes there is an emergency for furnace repair. One has to check for the problems. You need to figure out the seriousness of the problem. Some problems require more serious attention. Some of the problems might be little and easy to fix by yourself but there can be some problems which might require immediate professional attention.


Furnace Emergencies

  1. Electrical Issue: Electricity plays a crucial role in our day to day home operations. We mostly rely on our home’s electrical gadgets to provide us with power whenever needed, and that could be anything like powering your heating and cooling systems. Any electrical issues should be observed by a professional. it is good if you know what the problem is, you can avoid or resolve any accident or hazards in the early stage. You should always want a professional or an expert to look for the problem and resolve it, you should never put yourself in such a situation which won’t be able to resolve.

           Having aqualified HVAC professional on-call can be a life-saver when the furnace

           equipment needs some attention rather than by looking it up by yourself.

  1. Furnace Making Unusual Noises: There may be times when your furnace may be working properly but also makes a loud noise or some unusual sounds. These unusual sounds may come from the pilot light not getting ignited properly, or there’s some issue with the belts of the burner.

Various noises coming from your furnace:-

  • Popping sounds- It can be because of ductwork contracting and expanding as it heats and cools. it could be created by thermal expansion.
  • Rattling noises- You need to look for loose panels and need to tighten them.
  • Squealing noises – Maybe the belt of the furnace needs to be replaced or maybe the belt slipped which connects the motor to the fan.
  • Grinding sounds: It means it’s time to call the technician, the motor bearing might need some repairs.
  1. HVAC System is Turning On and Off Suddenly:  There can be several reasons why your furnace may be turning on and off very quickly. It can be because of worn-out air filters or dirt. The air filters might need a replacement soon if not done in a very long time. Using old filters can put pressure on the compressor and can lead to some mechanical issues. If the same thing continues to happen even after replacing the air filter then you may want a professional to look for the cause of it. There might be some problem with motors or belts, which need professional attention.

2. Unpleasant Odor and Furnace Flame Isn’t Blue:

 If it’s dirt then your furnaces can put off an odor that may smell like something is burning. Once you clean your furnace, if the odor goes away and your furnace will run fine, there’s nothing to worry about. If your furnace puts up an odor like gas or something similar to gas then you might want to leave the house as soon as possible and want some professional to come and look it up for you.

You can also check for the Color of your pilot light flame. When methane burns it gives blue color and that means your furnace is running properly but if the flame is yellow then it could be because of excess carbon monoxide causing a combustion problem. This can be a problem you need to look up immediately to stop any big accident because you never know, sometimes carbon monoxide acts as a silent poison. Cleaning of the burners properly is also needed at regular intervals and replacing them if required.

3. The furnace is Blowing Cold Air and Heat Suddenly Turns Off: Always make sure that your furnace is clean and should not have any accommodated dirt and should be flashing green or red light. Greenlight refers to everything being fine and red light means you need to call for a service. Whether the furnace has an issue with any parts like the thermostat, the blower motor, the run capacitor, furnace control board or transformer then there will be no light and you need to call the technician and take quick service.

 In case the heat suddenly turns off you might need to check the air filters and clean them if they are clogged. Check the thermostat also, you may need to replace it or charge batteries depending on the type of your thermostat. This might not be an immediate emergency but it will be good to be precautious from the early stage only and get it looked at by a serviceman.

4.Rust Problem

Rust problem is also one of the problems that your furnace may create. It May be due to a plumbing problem or roof leaking is causing rust and corrosion on your furnace. It would create a problem in your furnace. Gas furnaces can generate dangerous levels of gasses like carbon monoxide. It is conditional on the full system to vent that gas is going outdoors. If your furnace is getting rusty that may create lots of problems for your family member.


5.Creating Moisture

However, if you observe that any corner in your home has gotten more moisture such as a wall, ceiling or window. It may be symptoms that there isn’t proper airflow at your home. This unwanted dam or moisture may be that your furnace is not in good condition.


6.Water Leaks

The water leak is the most common reason for which your furnace may have some problems. But most of us don’t determine where the water is coming from and how it’s creating problems. However, if you find a leak when running from the air conditioner, there may be a chance of water leak and damage to your furnace. It can also happen that water can come from any of the appliances of your home and damage the furnace area. In that case, just Hire an HVAC repair service in San Diego and get the best service to get rid of your problem.


7.Animal Activity

Animals such as rats, mice and many more can do a huge amount of damage to your home appliances and furnace also. If you notice any kind of bird’s nest material or home of animals or insects moving around your furnace then it may create a problem. Quickly check the setup of the furnace and try to resolve it immediately. Try to clean the surrounding area of the furnace in the gap of a week or a month.


Start giving attention to your furnace and looking for an HVAC repair service in San Diego. The furnace adds comfort and value to your life and living space. It is important that you invest in a good furnace system, as it is one of the most important electronic investments you make in your life for your home. So you must keep it maintained regularly to keep it working properly rather than suddenly falling into some deep problem before it’s too late and you have to deal with the winters until repaired or replaced.

Author Bio:- Michael Cabral

Michael is a marketing manager at EZ Heat and Air. He loves writing about innovative and hybrid HVAC installation tips. His articles help readers to have valuable insights into the importance of duct cleaning, water heater maintenance, and repair, optimum working of the thermostat, Mini-split and heat pump installation in Orange County. Read articles for more information on keeping your HVAC system in tip-top condition and leading a hassle-free life.

Also Investing and hiring an HVAC professional is great for yourself and your furnace and you can stop worrying about the repairs. You can trust HVAC with your furnace repairs completely.