PaceMaster PM1C board

PaceMaster PM1C is an industrial motor control board used in treadmill and fitness equipment to regulate DC motor speed and torque via PWM outputs. Common failure modes for this class include burnt or tripped fuses on the power input, degraded MOSFETs or driver ICs causing loss of PWM drive, and damaged capacitors leading to voltage spikes that can damage downstream circuitry. First‑check steps: verify 120 VAC supply continuity and correct voltage at the board’s input terminals; inspect all fuses, electrolytic capacitors, and MOSFET packages for visual signs of burn or cracking; and review any diagnostic LEDs or error codes displayed on the unit to pinpoint a specific fault area.[oss-gpt-20b]

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