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The HVAC system is responsible for keeping your home comfortable year-round. Maintaining it properly is key to ensuring its efficiency. However, over time, several problems may arise that require attention. Here are three signs of issues that all homeowners should know.

How to Tell If You Need to Schedule HVAC Repairs

1. Unusual Smells

A musty odor suggests mold buildup inside the ducts. This occurs when excess condensation develops while the system cycles on and off frequently. An electrical or sizzling scent may be due to an overheated HVAC part. If replacing a clogged filter doesn’t resolve the issue, the odor may be caused by a worn motor or faulty wiring.

2. Strange Sounds

HVACIt’s normal for HVAC systems to produce a gentle humming noise while they run; however, anything more than this is a cause for concern. Occasional rattling is associated with debris buildup, like a twig or branch, in the outdoor unit. Clanking may indicate a failed motor or loose part inside the system. If your unit hisses, it could mean that there’s air leaking from the ducts, which can lead to excess energy waste and a costlier utility bill. A screaming sound suggests that the system is low on refrigerant, which is almost always due to a leak in the outside unit.

3. Weak Airflow

If the airflow is weak and your rooms don’t feel as comfortable as they normally do, make sure the filter is clean. Clogged filters hinder airflow, and the unit will need to work harder than necessary to meet your desired temperature. Another possible cause is low refrigerant, dirty coils on the outside unit, or a problem with the thermostat. There may also be a leak in the ductwork.

 

Don’t try to resolve these HVAC issues on your own, as you may worsen the problem. Instead, turn to the team at Advanced A/C Contracting in Honolulu, HI, and their sister company, Air Conditioning Essential Services Inc. These professionals offer a variety of HVAC services designed to improve your comfort, including repairs and installations. Learn more about their maintenance services online, or call (808) 847-4814 to schedule an appointment.

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