HVAC Services Machesney Park IL | Call Mcgovern Heating & Air Conditioning

First, check your thermostat settings and ensure your furnace filter is clean, as a clogged filter can cause issues. If the problem persists, it's likely an ignition system, gas valve, or flame sensor issue, which requires a professional technician for safety. McGovern's team can diagnose and repair these common winter failures quickly to restore your heat.

Warning signs include loud humming or clicking noises from the outdoor unit, warm air blowing from vents, frequent circuit breaker trips, or the unit struggling to start. A failing compressor in our Illinois summers is an urgent repair, as it can lead to a complete system shutdown. We recommend calling for service immediately to prevent further damage and discomfort.

Regular professional maintenance is the best defense. Our twice-yearly tune-ups for your AC and furnace can catch minor issues—like failing ignition components or compressor wear—before they turn into major breakdowns. We also recommend changing your air filter monthly and keeping the area around your outdoor unit clear of debris.