Exercise Equipment Repair Questions? Ask a Technician
Hi there happy to help.
This problem is generally attributed to a faulty tachometer sensor.
However some people hav been able to fix this by simply moving it back into place and gluing it down.
There is a picture and explanation of this fix here.........
Hopefully this gets you going again,
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I've tried this and it has not worked. This is not the answer I was looking for.