I have a Hayward H400 series pool heater that cycles through startup but will not ignite and is showing an IF code once lockout has occurred . This is a list of items I have already completed with not results.
Cleaned heater, replaced frayed wires, replaced ignition components, replaced circuit board, yes I have propane and the valve is on. I do smell the propane when attempting to start and the ignition switch does get hot. Any ideas