Your HVAC system works hard year-round to keep your home comfortable — from heating your space during Indiana’s chilly winters to cooling it down in the summer. But like any mechanical system, even the most reliable units can develop issues over time. At Reve Porter Custom Sheet Metal, we’ve seen just about every HVAC problem imaginable. Here are six of the most common HVAC repair issues homeowners face, what causes them, and when to call in the pros.
One of the simplest, yet most common, HVAC problems is a dirty air filter. Over time, dust, pet hair, and debris build up, restricting airflow. This makes your system work harder to maintain temperature, reducing efficiency and straining internal components. A clogged filter can even cause your furnace or air conditioner to overheat or freeze up.
Pro tip: Check and replace your filters every one to three months, depending on your home’s dust levels and whether you have pets.
If your system isn’t turning on or maintaining the right temperature, your thermostat could be the culprit. Issues like dead batteries, wiring problems, or outdated units can cause inconsistent comfort or cycling problems.
Upgrading to a programmable or smart thermostat can not only solve these problems but also improve efficiency and reduce energy bills.
Low refrigerant levels are a common reason an air conditioner stops cooling effectively. Leaks can occur in the coils or lines over time, leading to longer run times, warm air from vents, and even compressor damage if not addressed.
If you notice hissing sounds or your AC is running constantly but not cooling, it’s time for a professional inspection and refrigerant recharge.
HVAC systems rely on numerous electrical connections to operate fans, compressors, and blowers. Faulty wiring, tripped breakers, or a failing capacitor can all prevent your system from running properly — or at all.
These issues often require a licensed technician to diagnose safely, as attempting to handle electrical repairs yourself can be dangerous.
Your air conditioner naturally removes humidity from the air, but if the condensate drain becomes clogged, you could end up with leaks, mold growth, or water damage around the unit. Regular maintenance ensures the drain line remains clear, preventing moisture-related issues before they start.
Mechanical wear and tear is inevitable. Over time, blower belts can fray, bearings can seize, and motors can fail. You may hear squealing, grinding, or rattling noises — all signs that something needs attention. Addressing these issues early can prevent costly breakdowns and extend the lifespan of your system.
Most HVAC breakdowns can be avoided with routine maintenance. Annual tune-ups allow technicians to clean components, lubricate moving parts, check refrigerant levels, test safety controls, and spot issues before they escalate.
At Reve Porter Custom Sheet Metal, our experienced technicians service all makes and models, ensuring your system runs efficiently and safely. From ductwork fabrication to full HVAC repair and replacement, we deliver precision craftsmanship you can trust. Contact us at (317) 978-6523 to get a free estimate today.
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