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Life Fitness... | Answered on Oct 29, 2011
If you can walk on your treadmill but you get a burning smell from it, you have a bad problem and discontinue use immediately and unplug the treadmill.
Burning smells are most commonly associated with the following problems:
1) Very high belt/deck friction.
2) Short in the motor.
3) Short in the wiring or electronics.
4) Literally cooking the lacquer or cardboard core (on cheap machines) in the motor from belt friction or a drive system
Friction is the #1 cause of this problem. Many cheaper treadmills have a motor with a cardboard core (people wonder why we are so
down on cheap treadmills) and if the voltage and amperage through the motor heats it up sufficiently, it begins to smolder. If this is the
case, you normally have to replace the belt and the motor and inspect the deck. If the armature has cooked enough in the motor, you
also have to replace the motor.
If the belt and deck check out OK, check for a short in the motor. You can run the motor with an independent power source like a fullycharged
cordless drill battery to see if the symptoms are the same. Click on the following link for our motor test.
If the belt and deck check out and the motor is OK, then check your wiring and electronics for signs of scorching and replace the
This is the most uncommon of the causes. Typically replacing a controller in this situation will not solve the underlying problem and then
you will end up replacing a belt as well as a control. Normally if a
control is dropping output, it will do it with a person on the belt or not. Tests of DC output dropping is normal in many controls since they
have a current limiter which will automatically drop output to prevent burning up the board. This is best diagnosed by eliminating the
other possible problems first. If you are left with the control as the cause,
replace the control.
If you need additional help, please reach me, sincerely. God bless you.
MANAGUA, NICARAGUA. C.A.
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