GoodmanLTD Janitrol Control Circuit Board Panel B18099-13

Seller: b18099-13 or b18099-13s for 1996 gmp 100-3, sn 9508830539? what's the difference? thank you.

"product support" listed will not support; goodman won't help unless you're an hvac tech. where is tech support for homeowner install?

@ seller - is this a goodman oem board or after market?

Will this replace B18099-11 ?