Pretty easy stuff if you now the make and model… information that is needed to make any repairs or adjustments… and no one can say for sure what you want to know without having the make and model…
I gave it for Atwood and here it is for Suburban…
SW6P P= pilot
SW6PR = pilot with reignitor
SW6PE= combination pilot and electric
SW6PER= combination pilot and electric with reignitor
SW6D=direct spark ignition
SW6DE=direct spark ignition and electric