Keys Health AE02 08-0051 Keys Milestone treadmill

Keys Health AE02 08‑0051 is a motor control board used on several Keys Milestone treadmill models (e.g., HT500, HT702T, and various Pro/Elite series). Common failure modes include loss of speed regulation due to burnt MOSFETs or degraded gate driver ICs, shorted power input traces, and capacitor failures on the high‑voltage side. Typical repair steps are: verify 48 V DC supply continuity and correct voltage at the board’s VCC pins; inspect for visible burn marks or cracked components on the motor driver section; and check the status of the PWM control inputs (phase A/B) against the treadmill’s encoder signals.[oss-gpt-20b]

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