Motus M990T, Service Manual

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9
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
Touch-Sensitive Key PCB is affected by some noise. Replace the Touch-Sensitive Key PCB.
Treadmill changes
Speed or Incline on
its own.
Sweat or water over the buttons. Remove sweat or water.
Touch-Sensitive Key PCB is affected by some noise. Replace the Touch-Sensitive Key PCB. Treadmill shuts
down on its own. Sweat or water over the buttons. Remove sweat or water.
Loose ribbon connection.
Verify the ribbon connection is firmly inserted into the
corresponding socket of MPU PCB.
Defective Membrane Overlay Key. Replace Membrane Overlay Key.
Membrane Overlay
Key is not
responding when
depressed.
Defective MPU PCB. Replace MPU PCB.
Oil leakage Too much amount of lubrication. Reduce the amount to be lubricated.
Uneven floor surface
Level or balance treadmill. (Refer to section “Level
Adjustment”)
Striding belt tension or tracking adjustment is needed.
Align striding belt by using belt adjustment bolt after
Level Adjustment is done.
(Refer to section ”Striding belt alignment”) Striding belt drifts off
center
Worn striding belt. Replace striding belt.
Striding belt slips
during footfall.
Belt tension is loose.
Adjust the belt tension.
(Refer to section ”Belt Tension adjustment”)
High friction between deck and striding belt. Lubrication is needed between deck and striding belt. Loud groaning on
footfall
Foreign objects. Remove any debris or objects under striding belt.
Drive Motor Belt may be worn or damaged. Replace Drive Motor Belt.
Drive Motor Belt tension is loose. Adjust the tension.
Squeaking noise
under motor hood
Foreign objects on the groove of the belt. Remove any debris or objects on the groove of the belt.
Knocking sound
from deck.
Deck is not fixed. Tighten Deck by using the bolt to fix DECK.
Electrostatic
discharge
The underside of Striding belt is worn away. Replace the striding belt.