Rugged Reliability: The Setra 231G sensor utilizes thin-film sensing technology to resist long-term drift and withstand high line pressure environments

If you notice the valve failing to shift

Smith 100171899 Gas Valve is a critical combustion component designed for high-efficiency Liquid Propane (LP) systems

As an OEM Viessmann part

Bard HVAC 8408-048BX Freeze Thermostat mario Rugged Reliability: The Setra 231GThe Bard 8408 048BX Freeze Thermostat is a critical genuine OEM replacement part designed for high performance protection in Bard HVAC systems. Engineered with an L50 20F temperature rating, this freeze thermostat with cable ensures the system triggers a cutout when evaporator temperatures drop to 20F, preventing ice accumulation and subsequent compressor slugging. This part is functionally identical to the Bard 8408 048 and is essential for