Genuine LiftMaster 050DCRJB3MC receiver logic board — the Security+ 2.0 DC board with Wi-Fi and Bluetooth for the 98032 heavy-duty wall-mount (jackshaft) opener, the model that replaced the 8500W. Yellow learn button, tri-band radio, myQ built in.
Five wall-mount boards, read the number. 98032 = this board. 98022 / Chamberlain RJO101 = 041DJ003MC. 8500W / RJO70 = 050DCRJWFMC. 8500 / 8500C / RJO20 = 041DJ002MC. 3800 / RJO (purple button) = 041DJ001B.
Specifications
| Part number | 050DCRJB3MC |
|---|---|
| LiftMaster description | Receiver Logic Board, DC, Wi-Fi, HD RJO |
| Learn button | Yellow — Security+ 2.0, tri-band 310 / 315 / 390 MHz |
| Connectivity | Wi-Fi and Bluetooth, myQ |
| Fits | LiftMaster 98032 (98032MC) |
| Condition | Genuine LiftMaster OEM, new |
Which wall-mount board do I have?
| Opener | Learn button | Board |
|---|---|---|
| LiftMaster 98032 heavy-duty wall mount (replaced the 8500W) | Yellow | 050DCRJB3MC — this board |
| LiftMaster 98022; Chamberlain RJO101 | Yellow | 041DJ003MC |
| LiftMaster 8500W; Chamberlain RJO70 | Yellow | 050DCRJWFMC |
| LiftMaster 8500, 8500C; Chamberlain RJO20 | Yellow | 041DJ002MC |
| LiftMaster 3800; Chamberlain RJO; 3900PLD | Purple | 041DJ001B |
A beeping wall mount is usually not the board. The cable tension monitor stops the opener when a door cable goes slack, and the power door lock stops it when the door is locked. Check the cables, springs and the 041A6104 cable tension monitor first.
Parts often replaced with it
485LM backup battery (the 98032 carries two) · 041A6104 cable tension monitor · 041A6102 power door lock · 893LM remote
Is the board actually the problem?
The logic board is the most over-ordered part on a commercial operator. Work down this list before you buy:
| Symptom | Check first |
|---|---|
| Opener beeps and will not run | Slack cable at the tension monitor, or the door lock engaged |
| Dead, no lights | Supply and transformer, then the board |
| Runs on AC but not on battery | The 485LM batteries |
| Lost Wi-Fi / myQ | Router and app setup, not the board |
| Dead after a storm | The board — fit surge protection with it |
After fitting
Set the travel limits from the opener's buttons, learn the remotes, re-add the opener in the myQ app and re-test the cable tension monitor and the power door lock.
Fit surge protection when you fit the board. Lightning and utility surges are the most common reason a commercial operator board is replaced, and a new board on the same unprotected supply is at the same risk. The MOV kit on the electrical box is the first line; a proper surge arrester on the supply is the second.
Related
98032 parts · 98022 parts · 8500 parts · logic board cross reference
Not sure which board you need? Send a photo of the number printed on your existing board to parts@gatehousesupplies.com or call 866-965-5599. We would rather confirm it than have you fit the wrong board.
