Okay, that particular serial number has no outstanding bulletins or issues. So, let's start with the basics; here's the troubleshooting chart from the shop manual, and associated procedures (see attached images). My money is on a cable issue of some kind...
While it's unlikely (unless there are signs of leakage) the hydrostatic fluid level is probably okay. It may have ingested some water, but that's rare. You do have to fully remove the transmission to get to the location where the fluid level can be checked/filled (sorry).![]()
Does anyone know how to replace the drive clutch cable. Mine snapped today. Harmony HRM 215 Serial # MZBB 6442035 KD
Thanks
Paul