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

What does it mean if my pressure switch stays open

System Protection: Prevents furnace operation during flue obstructions

flat surfaces to avoid contaminating the refrigerant circuit

the R0061300 ensures system stability and prevents thermal stress on copper heat exchangers

Remove the NEMA Type 1 cover to access the internal adjusting screw

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