My "time clock" doesn't seem to be working i.e. it doesn't rotate in order to engage the tabs for filter cycles. It's a 1989 Sundance Cameo with the Sentry 605 control system.

The spa can run on 120 or 240. Don't know what it ran on earlier, but it's hooked up for 240 now. Is there some setting I need to check in the control panel, etc.?

Attached a picture of what mine looks like.

Tim


[/img]

Replace the clock. They get old and wear out.

does it have to be a genuine Sundance replacement part, or will i be ok with any 120V/60Hz/24hr model?? if they are in fact interchangeable as long as the configuration matches, then are some models better value/more reliable than others (i.e. Graslin/Diehl/etc.) or are they pretty much the same i.e. i should buy the cheapest one i can find?

thanks for all your tips!!

Yes, you can switch them out with just about anything. As long as yours has 4 wires connected to it, then any sub will work. And you're correct the Grasslin's mounting is the same as the Diehl, except I believe the Diehl may only have 3 mounting holes. Here's the Grasslin version.

Be certain that your timer motor is rated for 110-120 Volts.