Brand new treadmill, just set it up. When you increase the speed greater at 1.5mph, you hear a thumping noise towards the back of the treadmill, very rhythmic in sound, similar to sound of a heartbeat just louder. treadmill has been calibrated and passed, but sound remains and if you increase speed higher, sound remains just occurs more often but carries same rhythm.
The problem is the rear roller has a bad bearing and needs to be replaced
Not correct, they all make this sound (we have installed hundred's). The belt is brand new, just use the unit, by hour 50 it will be gone. Do NOT tighten the belt to reduce the noise, it will prematurely burn up the motor.
I have this problem! But the thump happens at the front even when the belt joint is on top.....happens as soon as you turn it on 4x per cycle. It can't be normal.....my other one didn't do it.
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i have fitted a new belt to my treadmill and have lubed bearings as best i can and when at walking speed its fine but when increase speed it whines quiet loud
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