MASTERBUILT

⚠ CAUTION ⚠

• Always remove plug from outlet before servicing your smoker.
• Make sure your smoker has fully cooled to avoid burns.
• Some components may have sharp edges. Use caution to avoid injury.

Tool Needed for Access and Replacement

Phillips head screwdriver.

Replacement Steps

Step 1: Prepare for Access

Remove the 6 screws securing the PCB shield. The shield is located on the bottom of the smoker.

Step 2: Remove Zip Tie

Remove the zip tie that secures the wiring harness.

Step 3: Disconnect Wires and Remove Screws

Unplug all 6 wires from their respective connection terminals. Then, remove the 4 screws holding the PCB in place.

Step 4: Remove Old PCB

Carefully remove the Power Circuit Board (PCB) along with its plastic housing.

Step 5: Install New PCB and Route Wires

Place the new PCB into position. Route the wires through the correct openings:

• The White Sleeve and Yellow wire should go through the right hole.
• For model MB20070924: The Blue, Red, Black, and White wires go through the left hole.
• For models MB20072024, MB20072124, MB20072224: The Blue (Rough), Red, Brown, and Blue (Smooth) wires go through the left hole.

Step 6: Connect Main Harness and Secure PCB

Plug in the large white sleeved terminal connection. Secure the new PCB board using the 4 screws removed earlier.

Step 7: Connect Yellow Ground Wire

Plug in the Yellow ground wire to its designated terminal.

Step 8: Connect Blue and White/Smooth Wires

For model MB20070924: Plug in the Blue and White terminal connections.
For models MB20072024, MB20072124, MB20072224: Plug in the Blue (Rough) and Blue (Smooth) terminal connections.

Step 9: Connect Black/Brown Wire

For model MB20070924: Plug in the Black terminal connection.
For models MB20072024, MB20072124, MB20072224: Plug in the Brown terminal connection.

Step 10: Connect Red Wire

Plug in the Red terminal connection.

Step 11: Secure Wiring

Zip tie the wires neatly to keep them organized and prevent damage.

Step 12: Replace Shield

Replace the plastic shield and secure it with the 6 screws.