Description
The A.O. Smith 9004540215 Blocked Inlet Switch is a safety product installed on gas-fired water heaters, which are essential components of home comfort systems for hot water and HVAC systems. It checks the air supply to the burner. If the inlet is blocked by debris or other obstructions, which is essential for the required airflow for combustion, the switch senses low pressure. It then closes the gas supply to avoid such mishaps as those which may lead to incomplete combustion or accumulation of carbon monoxide. This safety feature makes it easy and safe for the homeowner to operate the water heater besides promoting safety and longevity of the overall HVAC system hot water sector.
