The PRECOR 37882‑302 is the lower PCA (motor control) board used on commercial Precor treadmills such as the 962i series. Common failure points include degraded or failed MOSFETs/IGBTs in the motor driver section, burnt capacitors or diodes, and malfunctioning relays that interrupt power to the motor and safety switches. A typical fault pattern is a sudden loss of speed control or an “over‑temperature” shutdown with no visible error code. First‑check diagnostics: verify 48 V DC input voltage and polarity; visually inspect for burn marks, cracked solder joints, or swollen electrolytic capacitors; then use a multimeter to confirm continuity on the motor driver outputs and check relay coil resistance against spec.[oss-gpt-20b]