Laars Heating Systems R0011900 Ignition Module R-410A check for continuity across the

check for continuity across the terminals when the furnace is cool

This specific 2-pin housing is engineered for specific control assemblies

Verify the solenoid coil is receiving the correct voltage

It is an industry standard for monitoring building static pressure

Laars Heating Systems R0011900 Ignition Module R-410A check for continuity across theThe Laars Heating Systems R0011900 Ignition Module is a critical 24V natural gas ignition control designed for precise burner management in high efficiency boilers and pool heaters. As a continuous retry ignition module, this component ensures consistent system uptime by attempting to re establish the pilot or main burner flame if a flame out occurs, reducing the frequency of hard lockouts and manual resets. Engineered for high demand hydronic