Blank screen troubleshooter (tree_id: blank_screen_v2, version: 2026-03-05)
Ticket URL: /technical-support-request/

Start at: red_light
Q: Is the red light on the base on?
- Yes -> mcb_leds
- No  -> power_symptom

power_symptom
Q: Which best describes what happened?
- Treadmill went off during a run -> check_electricity
- Treadmill counted down 3,2,1 then powered off -> check_electricity
- Treadmill just didn’t come on upon start up -> check_electricity

check_electricity
A: Check the electricity has not tripped -> Done -> check_power_fuse

check_power_fuse
A: Check the power input fuse -> Done -> try_different_power
Support: https://www.noble-pro.com/repair-guides/changing-the-treadmill-fuse/

try_different_power
A: Try a different power cable and/or wall socket -> Done -> check_following

check_following
A: Check the following:
- Belt lubrication (support: https://www.noble-pro.com/maintenance/running-belt-lubrication/)
- Motor belt tension (support: https://www.noble-pro.com/maintenance/how-to-adjust-the-tension-of-your-motor-belt/)
- Belt tension/alignment (support: https://www.noble-pro.com/maintenance/how-to-adjust-a-treadmill-belt/)
-> Next -> solved_gate

mcb_leds
Q: Does the Motor Control Board (MCB) have LED’s that are on?
Note: If the treadmill ‘beeps’ on start-up but the screen stays blank, continue with these checks.
- Yes -> check_cable_connections
- No  -> mcb_power

check_cable_connections
A: Check the cable connections
Support: https://www.noble-pro.com/user-manuals/
- Solved -> end_solved
- Not solved -> screen_board_leds

screen_board_leds
Q: Does the screen board have LED’s that are on?
- Yes -> bluetooth_controls
- No  -> end_ticket

bluetooth_controls
Q: Does Bluetooth control the treadmill?
- Yes -> check_cable_connections
- No  -> end_ticket

mcb_power
Q: Is the Motor Control Board (MCB) wired correctly and getting power?
Support: https://www.noble-pro.com/repair-guides/noblepro-elite-series-motor-controller-mcb-replacement/
- No  -> check_installation -> Next -> solved_gate
- Yes -> replace_mcb -> Next -> solved_gate

solved_gate
Q: Solved?
- Yes -> end_solved
- No  -> end_ticket

end_solved (END): resolved
end_ticket (END): submit a technical ticket