Control box assy/panel assy diagram
Part #HN51JD024
Replaced by #90-244
Gas section diagram
Part #50SS500879
Blower assy diagram
Part #LA22RC001
Burner assy diagram
Part #48GS400168
Control box assy/panel assy diagram
Part #LH33WP003
Front view/louver option/rear view diagram
Part #48GS500306
Burner assy diagram
Part #48GS400192
Outdoor motor/fan blade gap diagram
Part #48GS400244
Reversing valve diagram
Part #KH71KN164
Control box assy/panel assy diagram
Part #HK660003
The manufacturer no longer makes this part, and there's no substitute part