Sunny Health & Fitness SF-RB4616 Questions & Answers
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1 Questions
The resistance level on my SF-RB4616 appears broken; when I try to change it, the knob just turns back to the same low level (2 or 3). I have disassembled it and see no obvious flaws, but do not understand how change in the resistance level knob is supposed to hold at a new setting. Please help!
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