LiftMaster Chamberlain 045ACTMC Logic Board | 41D7675 Security+ 2.0 Yellow Learn

• 41D7675 / 041D7675. • 045ACT / 045ACTMC. • LiftMaster: 8355, 8557, 8587, 8155, 8165, 8075, 8065, 8360, 8365. • Chamberlain: HD420EV, LW2200, and various EV/HD series. The opener will not function correctly until these limits are set.

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