Furnace Repair –What Noises You Should Be Concerned About?

A furnace system controls the temperature inside of your home. It works by moving the air throughout the household. This process makes your home comfortable while filtering out allergens and dust. For these reasons, you want to keep your furnace working efficiently.

Homeowners should take advantage of heating repair services. It is recommended that you get annual inspections for your HVAC system by a qualified technician. Read on to find out about noises that should not be ignored.

Makes A Squealing Noise

If your furnace is making a squealing noise, then this is a bad sign. This noise is often caused by a loose blower belt. To stop the sound, a HVAC technician needs to adjust or replace your belt.

Furnaces also make a squealing noise when there is a malfunction with the blower motor.

It is common to want to ignore the sound and not make the repair. However, you should not allow a simple repair to linger into something more serious.

Makes A Loud Bang

A loud bang coming from your furnace when turned on is a sign of trouble. Dirt can build up on your burners and cause a delay before igniting your burners. This leads to accumulation of excess gas, which makes a loud bang when the gas ignites.

When your burner goes off and on, it usually means the filter needs to be replaced or clean. The loud bang is a small explosion that can cause your heat exchanger to crack. The worse case scenario is your heat exchanger cracking because it is expensive to repair. Regular maintenance can prevent this from occurring.

Makes A Loud Scraping Sound

When there is a malfunction, your furnace's blower wheel may make a scraping sound. The sound is similar to metal rubbing against metal. This sound is caused for a number of reasons.

Your blower wheel can comes loose from your motor shaft and start to rub up against the blower casing.  This problem is easy to fix. If the wheel or shaft is not badly damaged, then you can just tighten up the wheel. A broken wheel means you have to replace it with a new one. If you cannot determine the cause of the sound, then you should have a HVAC tech look at your system immediately.

It helps to know the difference between normal sounds and ones that are not normal. An older furnace is going to make noise. Normal sounds are the humming of the motor and the pops from the duct. However, you have to keep your furnace in tip top shape to keep your home comfortable. Click this link for more information.