Why Your HVAC System Smells Bad
There could be many reasons why your home has an odd smell, particularly if you live in an older home. A defective appliance or a gas leak can also produce sharp odors. If you are certain that you smell gas, exit the house and call your local utility company and an HVAC service contractor.
Nasty odors can be bothersome but harmless, other odor can be dangerous and could even be deadly. Learn to tell the difference between a non-toxic odor and a dangerous one. If you can recognize the smell, you will know when it’s time to call in for HVAC service.
You Notice a Musty Smell
When you first turn on your furnace after it being idle all summer, it will likely produce a musty smell, especially if you live in an old house. This odor is caused by dirt and debris that has accumulated throughout the summer in the heating system and air ducts.
Another reason is that the filter is clogged and dirt has entered the appliance. Usually, these issues are not serious and they go away after a few hours.
If you have a crawl space with exposed dirt, moisture can accumulate over the years leading to mold growth which can also produce an unpleasant, musty odor.
If you notice a smell reminiscent of ozone or burning diesel, it may be coming from your furnace. When the bearings in your appliance cause the motor blower to bind, the furnace will be forced to draw more voltage.
This can create extreme heat inside the appliance motor. Heat emanating from the unit will burn wire insulation and cause sparks that result in a burning smell.
When You Smell Sulfur or Rotten Eggs
Natural gas is odorless. In an effort to make it more noticeable, your utility company will add a sulfur-like odor to the gas. This smell is usually the result of a gas leak. A gas leak is very serious and should never be taken lightly. Even a tiny gas leak can cause an explosion or a fire in your home that can cause injury to you and other occupants. Breathing in gas will cause serious health issues and even death. If you have a gas leak, leave the house immediately and your utility company.
You can tell you have a gas leak when you notice the following:
- You see movement on the ground of your property.
- You have corroded fuel lines leading to gas appliances.
- You hear a whistling, hissing or roaring sounds coming from a gas appliance.
- A gas pipeline has been exposed after a natural disaster such as an earthquake, hurricane or flood.
Don’t take any chances with a gas leak. Immediately call your local utility company and a licensed contractor for HVAC service.
If you notice unexplained odd smells inside your home, call Perry Plumbing in San Diego, CA for HVAC service you can trust. Their experts will be glad to talk to you and discuss your issue. You can always ask them questions which they will be happy to answer. For your convenience, 24/7 service is available.