Liftmaster 41AC050-1 Logic Board for Chain Drive Operator;

The liftmaster 41ac050-1 logic board is for models 2005-current, 315mhz, 1/2 HP security + chain drive garage door openers with no lights. This replacement circuit board, part number 41ac050-1m, fits several liftmaster chamberlain garage door openers and is identical to earlier circuit boards with the 41ac050-1 part number. The final letter designates a model year change, so as long as the rest of the part numbers are the same, the circuit boards are interchangeable. A bad circuit board is a common cause of problems with garage door openers and replacing a faulty board with a new one from north shore commercial door is a quicker and less expensive fix that replacing the entire unit. This replacement circuit board fits the following liftmaster chamberlain models: 3245 3255 pd210d pd212d hd200d.