We have tried to set our hot tub on economy mode for the summer which is around 89 degrees. Each time we've looked at it, the temp is between 104 and 107. What needs to be done to keep it on a lower temp. We've followed the directions in the Thermospa user's guide, but it doesn't seem to work.

Typically economy mode just runs the heater during the filter cycle, instead of all the time. Try turning down the temperature on the control panel.