TIMBERLINE DISPLAY NOT TURNING ON

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How to troubleshoot a Timberline/Timberline XL Controller Display that won't turn on

If the display is on but frozen/not responding to dial or touch selections, see Timberline Display Not Responsive (Frozen).

 

TOOLS NEEDED

  • Phillip's-head screwdriver
  • Optional: Scissors or a pocketknife (to cut zip ties holding wires together, if needed)
  • Optional: Adjustable wrench (to remove the P.A.L rail if struggling to access the screws on the Hopper Access Panel)
  • Optional: Masking tape or blue painters tape and a pen to label wires when disconnecting.

1: CONFIRM THE GRILL IS RECEIVING POWER

  1. Plug in the grill, press the Power Button and make sure it lights up.
    • If the Power Button does not illuminate, jump to step 4 to check the Motherboard LED.
  2. Power cycle the grill. A small percentage of brand new grills have an issue where the Display won't turn on that will be resolved by power cycling.
    • If the grill's Display turns on, the problem is fixed! 
  3. If power cycling does not resolve the Display issue, keep the grill powered on remove the Hopper Access Panel on the right side of the grill. 
    • Pro Tip:If struggling to get to the screws behind the P.A.L rail, use a wrench to remove the P.A.L rail.
  4. Check the Display Smart Combustion Harness connection to the Controller Display. The tab should be on top. If incorrect, disconnect and reconnect correctly.
    TimberlineDisplayConnection.JPG
  5. Remove the Smart Combustion cover and make sure the Motherboard LED is illuminated.
    Motherboard_LED_ON_no_connections.png
    • If the LED is not on, proceed to Timberline Power Issues
    • If the LED is on, continue to 2. Determine Which Part is Preventing the Display from Turning On.

2: DETERMINE WHICH PART IS PREVENTING THE DISPLAY FROM TURNING ON

Now that we've confirmed the grill is getting power, let's use process of elimination to determine which part is preventing the Display from turning on -- it is likely that a part is shorting out the Display. We'll disconnect all the grill's components from the Motherboard and then reconnect them one-by-one until we find the part(s) shorting out the Display.

2.1: REMOVE GRILL COMPONENT CONNECTIONS

  1. Turn off the grill.
  2. Disconnect the following connections from the Motherboard:
    Timberline_Motherboard_labeled_-smart.jpeg
    The Motherboard has labels inscribed next to each connection. Don't worry about mixing up wires: each connection is unique and will fit only in its intended connection. Feel free to label wires with masking tape if you'd like.
  3. Disconnect connections to Auxiliary Fan and Lid Sensor & Light. 
    Pro Tip: You can cut the zip ties that bundle the wires together to follow wires more easily. 
    1. Disconnect the Auxiliary Fan (red|blue|black wires) from the Display Smart Combustion Harness (brown|red|black wires). 
      yos_auxfan_wiring.jpg
    2. Disconnect the two connections from the Lid Sensor & Light to the Smart Combustion Harness and the Display Smart Combustion Harness.
      yos_lidsensor_wiring.JPG
  4. Verify all 5 power connections (circled in image below) are securely in place by either pushing them into place or by disconnecting and reconnecting them.
    Motherboard_power_connections_labeled.jpg

 

2.2: IDENTIFY THE COMPONENTS SHORTING OUT THE DISPLAY

With all the components disconnected, the Display should turn on. The Display will turn off once the faulty component reconnects.

  1. Turn on the grill. With all the components disconnected, the Display should turn on. 
    1. If the Display does not turn on and the green Motherboard LED is still on, you will likely need a new Hopper Assembly. Contact Customer Support to verify and get set up with the right part.
  2. Connect the Smart Combustion Harness to the SMART COMB Motherboard connection.
    This checks if the Flame Sensor is shorting out the Display.
    Gen2_Motherboard-smartcomb_grease.jpeg
    • If the Display turns off, the Flame Sensor is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    • If the Display stays on, keep going to find the part shorting out the display.
  3. Connect the Lid Sensor & Light to the Smart Combustion Harness
    This is the connection between the green|red|yellow|black wire harness and the top Lid Sensor & Light wire harness.
    This will check if the Lid Sensor & Light is shorting out the Display.
    Gen2_Wiring-LidLightSensor-SmartComb.jpeg
    • If the Display turns off, the Lid Sensor & Light is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    • If the Display stays on, keep going to find the part shorting out the display.
  4. Connect the Lid Sensor & Light to the Display Smart Combustion Harness
    This is the connection between the red|blue|black wire harness and the bottom Lid Sensor & Light wire harness.
    This, like the previous step, provides an additional check if the Lid Sensor & Light is shorting out the Display.
    Gen2_Wiring-LidLightSensor_DisplaySmartComb.jpeg
    • If the Display turns off, the Lid Sensor & Light is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    • If the Display stays on, keep going to find the part shorting out the display.
  5. Connect the Auxiliary Fan wire harness to the Display Smart Combustion Harness.
    This will check if the Auxiliary Fan is shorting out the Display.
    yos_auxfan_wiring.jpg
    • If the Display turns off, the Auxiliary Fan is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    • If the Display stays on, keep going to find the part shorting out the display.
  6. Connect the Auger Motor's wiring harness to the AUGER Motherboard connection. 
    This will check if the Auger Motor is shorting out the Display.
    Gen2_Motherboard-Auger.jpeg
    • If the Display turns off, the Auger Motor is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    • If the Display stays on, keep going to find the part shorting out the display.
  7. Connect the Induction Fan's wiring harness to the FAN Motherboard connection.
     This will check if the Induction Fan is shorting out the Display.
    Gen2_Motherboard-Fan.jpeg
    • If the Display turns off, the Induction Fan is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    • If the Display stays on, keep going to find the part shorting out the display.
  8. Connect the Pellet Sensor Wiring Harness to the PELLET Motherboard connection. 
    This will check if the Pellet Sensor is shorting out the Display.
    Gen2_Motherboard-Pellet.jpeg
    1. If the Display turns off, the Pellet Sensor is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    2. If the Display stays on, keep going to find the part shorting out the display.
  9. Connect the Thermocouple to the TEMP Motherboard connection. 
    This will check if the Thermocouple is shorting out the Display. Make sure the + and - signs on the Thermocouple connection match with the signs on the Motherboard (+ on top; - on bottom).
    Gen2_Motherboard-Temp.jpeg
    1. If the Display turns off, the Thermocouple is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
    2. If the Display stays on, keep going to find the part shorting out the display.
  10. Connect the AC Ignitor Harness to the AC IGN Motherboard connection. 
    This will check if the AC Ignitor Harness or the Hot Rod is shorting out the Display.
    Gen2_Motherboard-ACIgn.jpeg
    1. If the Display turns off, the Hot Rod is likely shorting out the Display.
      1. Contact Customer Support to verify and get set up with the right part.
  11. If the Display remains on once all components are connected, you can get back Traegering! Reinstall the Hopper Access Panel and enjoy your next meal.
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