Model# SC-1 DKO1 No heat call today. Found HSI inop. Replaced the original silicone carbide with a silicone nitride HSI. Unit has a White-Rodgers ignition module. My quetion is why does the HSI continue to be energized even after flame is established. My flame sense was between .03 to .15.ua. fluctuating. Is this to weak or is there a problem with the ignition module. Module indicated no faults.
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