Laars Heating Systems 2400-055 Limit Switch 320819-301 What does it mean if

What does it mean if my pressure switch stays open

Contractors depend on this AERCO gas pressure switch for accurate pressure sensing and dependable switching performance under varying load conditions

these part numbers refer to the same standing pilot gas valve

"first-time" start every time

System Protection: Prevents furnace operation during flue obstructions

Laars Heating Systems 2400-055 Limit Switch 320819-301 What does it mean ifFor service technicians maintaining Laars Heating Systems, the Laars 2400 055 Limit Switch is a critical safety component designed for precise thermal regulation. This 245F CO AUTO Limit Switch functions as a high limit protection device, automatically interrupting the control circuit if internal temperatures reach the 245F threshold. Engineered for compatibility with commercial boiler models including the Laars HWG and Laars CB series, this "new