Any advice appreciated. Machine failed to complete wash cycle. So tried to put onto spin cycle before unloading and investigating. Would not start spin cycle. Heard what I think is drainage pumps kicking in, but drum does not rotate. Fault indicator lights are high water level (i.e. what looks like a full bath) and flashing red light below two droplets (i.e what I think would normally indicate the mid point of rinse cycle). About to look inside. Hopefully its only the belt. Machine is 20 years old. Thanks in advance!