Top-Rated HVAC Services in Roselle, IL 60172 - Arlington Hieghts Heating & Cooling

In our area, with varying seasons and typical suburban dust, we recommend checking your filter every month. For most standard 1-inch filters, replacement every 90 days is a good rule of thumb. However, during high-use seasons like summer and winter, or if you have pets, you may need to change it as often as every 30-60 days to prevent clogs that restrict airflow and strain your system.

This is a common issue we see locally. It could be due to a few things: the thermostat may need recalibration, its location (like on an exterior wall or in direct sunlight) could be causing false readings, or there may be an electrical issue. It can also signal a bigger problem with your HVAC system struggling due to a clogged filter. Our technicians can quickly diagnose the root cause, whether it's a simple thermostat fix or a system performance check.

Absolutely. A severely clogged filter restricts airflow over the evaporator coil. This prevents warm air from absorbing enough heat from the cold coil, causing the coil's temperature to drop below freezing. The moisture in the air then freezes on the coil, forming ice. This reduces cooling, increases energy bills, and can lead to compressor failure. Regular filter changes are a simple, crucial step to prevent this costly problem.