I have a Sunset Spas 9 person tub on a 220v dedicated circuit (60 amp.) It has Brett Aqualine controls....think it's a CM101. It has a knob on the panel and a air pushbutton control on the top of the tub. I'm operating it in the "use thermostat" for heating setting.

I have a 2 speed pump wire at 230V. The heater is a 2" Stainless Flow Thru, 15" long.


Anyway, it works well except the high limit trips when I place the spa into high speed. Besides that it works well. It wasn't doing this previously and just started it when I refilled it.

Thanks,