2 questions: motor and controller
Controller:
Before removing motor and controller, I confirmed that display works, can enter calibration mode, lift motor works, PWM signal LED lights, and did not visually find anything broken or discolored on the board . However MTR (motor) LED does not light. Removed board, attached PWM signal generator (have done this before), and attached good motor: nothing. I'm new to electronics. Does this suggest to anyone the problem, or a short list of likely failed components?
Motor:
Removed motor from treadmill. Tried to connect it to 12V car battery, but sparked strongly at battery (shorted?). It turns by hand with more than normal resistance. Actually, 1/2 turn is normal, 1/2 is resistant. Opened motor; bearings are good (possibly replaced once---rubber seals); no visual discoloring of windings; brushes nearly new; motor clean and unscratched; did not find short between rotor at stator. Does this suggest to anyone the likely problem? Thank you.
Controller:
Before removing motor and controller, I confirmed that display works, can enter calibration mode, lift motor works, PWM signal LED lights, and did not visually find anything broken or discolored on the board . However MTR (motor) LED does not light. Removed board, attached PWM signal generator (have done this before), and attached good motor: nothing. I'm new to electronics. Does this suggest to anyone the problem, or a short list of likely failed components?
Motor:
Removed motor from treadmill. Tried to connect it to 12V car battery, but sparked strongly at battery (shorted?). It turns by hand with more than normal resistance. Actually, 1/2 turn is normal, 1/2 is resistant. Opened motor; bearings are good (possibly replaced once---rubber seals); no visual discoloring of windings; brushes nearly new; motor clean and unscratched; did not find short between rotor at stator. Does this suggest to anyone the likely problem? Thank you.
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