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:
North Shore Commercial Door is a family-owned company with more than 35 years of experience providing garage door openers and parts for residential and commercial use. We have the expertise to help you find the parts you need. You can search by part number, using our search form, or consult our Chamberlain LiftMaster Garage Door Opener Circuit Board Compatibility Chart
for a list of replacement parts compatible with your model of garage door opener. Another option is to post your questions using our Comments/Questions section. You’ll and get advice and answers from our experienced staff and from our customers, many of whom are professional installers.
North Shore Commercial Door recommends protecting your new replacement circuit board from damage caused by electrical surges by simultaneously installing a LiftMaster 990LM Garage Door Opener Surge Protector
. We make it easy by offering a special combo price when you order both the replacement circuit board and the surge protector together.
The 41AC050-1M replaces the old part number 41AC050-4M