HVAC Services Palatine IL | Call A & S Heating and Air

Common signs include reduced cooling power, unusual noises (like humming or clicking), and the unit frequently cycling on and off. For Palatine homes, compressor strain often increases during our humid summers. A & S Heating and Cooling can diagnose the issue promptly and provide a clear repair or replacement plan to restore your comfort efficiently.

We recommend scheduling professional maintenance twice a year—ideally in the spring for your AC and in the fall for your furnace. This routine check helps prepare your system for the extreme temperatures we experience in Palatine, improving efficiency, preventing unexpected breakdowns, and extending the lifespan of your equipment.

Short-cycling, where your furnace turns on and off rapidly, is often caused by a clogged air filter, a faulty thermostat, or an oversized system. It's a common issue in Palatine homes, especially as furnaces age. Our technicians will inspect these components and the heat exchanger to diagnose the root cause and provide a reliable repair solution.