Thanks for the reply Doc,
I managed to purchase a replacement Topside. It looks like my Tub is a Chinese Import called Whirlpool.
I filled the Tub and found that the pumps run OK. The heater comes on when selected.
Can't find the 'System Time setting Key'
I sure could use the 'Set-up' and 'Install' instructions for this Tub.
Regards
George