Control box diagram
Part #521515
Replaced by #90-244
Control box diagram
Part #521516
Replaced by #90-244
Part #521769
Replaced by #5462
Part #706726
Replaced by #12907
Functional replacement parts diagram
Part #521768
Replaced by #5462
Heat exchanger diagram
Part #706723
Replaced by #12005
Heat exchanger diagram
Part #706437
Replaced by #12005
Control box diagram
Part #705329
The manufacturer no longer makes this part, and there's no substitute part
Heat exchanger diagram
Part #1000167
Replaced by #BG1600M51EF-1AA
Heat exchanger diagram
Part #1000045
The manufacturer no longer makes this part, and there's no substitute part