Laars Heating Systems R0408100 Module Refrigerant maintaining the factory-specified 0

maintaining the factory-specified 0

A reading of OL indicates a failed coil

ensure your discharge pressures do not exceed the maximum working pressure rating

providing the precise fuel regulation required for condensing gas boilers

a failing 8733800260 PC board often manifests as a complete system lockout or intermittent compressor failure

Laars Heating Systems R0408100 Module Refrigerant maintaining the factory-specified 0The Laars Heating Systems R0408100 Module is a critical 24V direct spark ignition control engineered for high performance gas fired boilers and pool heaters. This digital heater ignition control is a direct replacement for Teledyne Laars and Jandy units, specifically designed to manage the combustion sequence in Lite2 LD, LX, and LT Series heaters. Operating on a 24VAC circuit, the module features a 15 second pre purge (15sPP) cycle to clear residual