What a Heating System Service Visit Actually Involves

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When a technician arrives for a heating system service, they start by inspecting and cleaning key components like burners, heat exchangers, and the flue. They test safety controls, measure gas pressure, and check for carbon monoxide leaks. After adjusting air-to-fuel ratios and lubricating fan motors, they run the system through a full cycle to confirm it's operating efficiently and safely—preventing breakdowns when you need heat most.