S8600H Continuous Re-try Ignition Control Module for furnace, Water heater, etc March 22, 2024 Comments Off Posted in: s8600h Tested before removal from a fully-functioning unit. S8600H Continuous Re-try Ignition Control Module for furnace, Water heater, etc. Tags: continuous, control, furnace, heater, ignition, module, re-try, s8600h, water Comments are closed.