Startup Failure on Horizon T202
My 10 yr old treadmill has suddenly failed. When powered up, the console does not initialize. No beeps, error codes, or displayed info. The backlight on the LCD simply flashes continuously, with ~1 sec interval. One of the relays on the MCB also clicks continuously with a similar frequency. If I disconnect the UCB cable, the relay clicking stops. Input voltage to MCB is good. Belt motor works normally with DC power applied. I can probably rationalize replacing the MCB or UCB on this older unit, but not both. Any thoughts or suggestions for isolating the problem? Thank you.