The control motor or the drive motor issue that is malfunctioning continues to skip after lubricating and tightening the belt. It also runs a bit sluggish.
The control motor is $279 on Fitness Repair Parts - https://www.fitnessrepairparts.com/cart/ViewItem/9020967
The drive Motor is $289 on Hydra Fitness Exchange - https://www.hydrafitnessexchange.com/equipment/spirit-ct800-2014/24946
Spirit CT800 Treadmill i
Commercial treadmill
Console Large blue LED matrix
Programs Manual, interval, 5k, hill, fat burn, cardio, Gerkin Protocol Fit Test, 2 HR, custom
Heart Rate Contact and telemetric compatible
0.8-20 Kph (0.5-12 Mph)/ 0-15 LEVEL% Speed incline
230v (NEMA 5-20P electrical cord); 10A circuit recommended Power
Deck 25mm / 1" phenolic, double-sided, wax coated
Belt 560 x 1525 mm, Habasit ® commercial, multi-ply
Rollers 75mm / 3.0"
Heavy-gauge high-strength steel with durable powder coat paint, aluminium masts and side rails
Product Size 2125 × 885 × 1440mm / 84" x 35" x 57"
Product Weight 155kg / 342lb
Max User Weight 205kg / 450lb