Liftmaster/Chamberlain/Sears Logic Boards and Genie Sequencer Boards
41A4201-6C	41A4201-7C	41A4252-6D	41A4252-7D	41D4674-1C	41A5021-1E
41A5021-E	41D4674-14E	41D4674-10E	41A5021-5E	41A5389-1

If you do not see your logic board listed here refer to our conversion chart below.

Note: For Sears logic board refer to the 139 number located on the back panel of your opener and call for correct conversion number.

Liftmaster/Chamberlain Logic Board Conversion Charts
41D2745	41D2951	41A4252	41A4252-1	41D4674-1C	41A5021
41A3040	41A3039	41A4252-4	41A4252-5		41A5021-B
41A3519	41A3519-1	41A4252-6	41A4252-7		41A5021-C
41A3622	41A3623	41A4252-6A	41A4252-7A		41A5021-D
41A3626	41A3627	41A4252-6B	41A4252-7B		41A5021-E
41A4201	41A4201-1	41A4252-6C	41A4252-7C
41A4201-4	41A4201-5	41A4252-6D	41A4252-7D
41A4201-6	41A4201-7
41A4201-6A	41A4201-7A
41A4201-6B	41A4201-7B
41A4201-6C	41A4201-7C
If you have a board on the list above replace it with one of the following:
41A4201-6C	41A4201-7C	41A4252-6D	41A4252-7D	41D4674-1C	41A5021-E

41A5021-1	41D4674-14	41D4674-10	41A5021-D	41A5389-1
41A5021-1B	41D4674-14D	41D4674-10C	41A5021-5E
41A5021-1C	41D4674-14E	41D4674-10D
41A5021-1D		41D4674-10E
41A5021-1E
If you have a board on the list above replace it with one of the following:
41A5021-1E	41D4674-14E	41D4674-10E	41A5021-5E	41A5389-1

Genie Sequensor Boards
24350S	27504R	27301R	27301T	30075R	30075S
30611R	30901R	30901S	31181R	31183R	31184R

Note: Sequensor board number is located on the white tag on the sequensor board itself.