Run away from Goodman they are JUNK!!! I did residential for a few years and we always had problems with Goodman units. Lennox has to many different parts between all the models. I now do commercial work and we have good luck with Carrier and Trane. Have buddy who installs Rheem and has had...
I bought my harness from affordable-fuel-injection. I called and talked too them and. They where great people to work with and where pretty good on price also