Control box/control panel assy diagram
Part #HN51KB024
The manufacturer no longer makes this part, and there's no substitute part
Inside view diagram
Part #HK42FZ024
Replaced by #HK42FZ035
Gas section diagram
Part #48SS500608
Replaced by #48VL500219
Blower assy diagram
Part #HD44RE120
Replaced by #58MV660002
Evap coil diagram
Part #331055-706
Gas section diagram
Part #HH18HA545
Burner assy diagram
Part #EF33CW201
Gas section diagram
Part #50JS400293
Front view/rear view diagram
Part #HC35GE235
Inside view diagram
Part #KA56TR057