There is a small motor under the shroud that operates the resistance motor. It is about the size of a roll of half dollars. Have someone use a meter and check that you are getting power to this. When you turn on the machine the motor should move the resistance forward then back. You can hear this everytime you turn it on.
Open shroud and find the circuit board unplug and plug back in all connection this may sometime clean any oxidation off the connector. this is what I've in their 546's should work on the 5.17
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