A Lochinvar 100171990 Gas Valve meters gas flow for steady burner control and dependable performance within the HVAC unit.
The gas valve controls the flow of natural gas to the burner so the heating and cooling equipment can ignite properly, maintain stable combustion and operate at the intended output. Its construction matters because accurate internal control and compatibility with natural gas support safe fuel delivery, steady performance and reliable response within the HVAC system.
The gas valve may be approaching failure if the heating and cooling unit shows ignition trouble, uneven heating, burner dropout, delayed startup or inconsistent gas flow during operation. Common indicators include sticking operation, unusual clicking, a gas odor near the valve, visible wear or corrosion or exposure-related damage that could affect valve performance.
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