LiftMaster Chamberlain 41AC050-1M Garage Door Opener Circuit Board

LiftMaster Chamberlain 41AC050-1M Garage Door Opener Circuit Board

Item# 41AC050-1
Availability: Usually ships the next business day
Product Manual Available
Download PDF Manual

These items are Frequently Purchased Together

LiftMaster Chamberlain 41AC050-1M Garage Door Opener Circuit BoardLiftMaster Chamberlain 41AC050-1M Garage Door Opener Circuit BoardPrice: $76.00Sale: $62.00
Liftmaster MODEL  990LM Garage Door Opener Surge ProtectorLiftmaster MODEL 990LM Garage Door Opener Surge ProtectorPrice: $36.00Sale: $19.30
Combo Price: $81.30

Product Description

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.

Comments / Questions

COMMENT: Garage door fails to work intermidiantly by Dieter K 3/25/2014
COMMENT: Had a power surge by Shaun M 11/28/2013
QUESTION: I'm receiving 5 flashes on my Liftmaster 3255M. Could the problem be anything other than a shot logic board? by Jim P 12/23/2013
ANSWER: According to the manual, the motor has overheated or the RPM Sensor is not working. Unplug to reset the unit. After resetting and the light is flashing 5 times and the motor unit moves 6-8", replace the RPM Sensor. If the motor does not operate motor unit could be overheated, wait 30 minutes. If the motor unit still will not operate, replace the logic board. by Mark M a
STAFF ANSWER: It could be but it is not likely, I would replace the circuit board. by Matthew O a
QUESTION: the light bulb doest not goes on when the door opens ,light bulb was replace by lassis b 9/27/2013
STAFF ANSWER: Did you replace your light socket? by Matthew O a
REPLY: I had to program my remote on the wall to turn light off and on. by Judy M r
QUESTION: Thanks for the 2 suggestions about the light in the until not turning on when either I open the door or enter the garage. It has been working fine for a year. It is not the bulb because I put in a new bulb and still the light does not come on either by motion or the door opening. Are there any other suggestions? by None N 8/1/2013
ANSWER: If the light doesn't come on with the wall switch either, try another known working bulb by David W a
STAFF ANSWER: Call 800-528-9131 Chamberlain Liftmaster Tech line for troubleshooting They will tell you what part you need. by Matthew O a
QUESTION: The light on the opener is no longer coming on. It is not a bulb issue but I believe a sensor issue. Any suggestions Thanks. by None N 7/30/2013
ANSWER: If the rest of system works correctly, then it's a failure on the circuit board of the bulb relay circuit. Replace the circuit board. by Steven H a
ANSWER: If you mean the light circuit board itself, then no light means the wiring harness is not seated correctly, or the board is defective. If it is the sensor detect led, then check your DIP switch settings to make sure that match those on the opener. Other than that, which light do you mean the main light If so, it is prob. the harness again, since it drives everything. Make sure it is plugged in correctly and seated firmly. by Kevin S a
ANSWER: Make sure u have power to the unit. The light would blink codes if it was one of the sensors at the bottom of the door. I've had a few power surges and lighting strikes take out the whole board by C I a