Rheem-Ruud 47-23610-21 Limit Switch 321142-301 Key Benefits Precise Flame Sensing:

Key Benefits Precise Flame Sensing: Proven DC microamp signal transmission ensures the control board accurately detects flame presence to prevent nuisance shutdowns

It retains the same 1/2" footprint and 24V electrical requirements

or "No Flame" error codes on the boiler control board

making it a staple for any contractor’s service truck for routine maintenance or emergency repairs on outside wall furnace installations

Rheem-Ruud 47-23610-21 Limit Switch 321142-301 Key Benefits Precise Flame Sensing:The Rheem Ruud 47 23610 21 Limit Switch is a critical safety component designed for high limit temperature protection in residential and commercial HVAC systems. As an OEM replacement part, this SPST normally closed switch is engineered to break the electrical circuit when the high limit temperature is reached, preventing heat exchanger damage. This air pressure and thermal safety control features a fixed open temperature of 175F and a fixed close