74. Why does the motor run in high speed in circulation and heating mode?

If the motor comes on in high speed in circulation and heating mode, but pushing the jet control button changes the motor back to low speed, the most likely cause is that the two hot wires are reversed either at the motor or inside the controller. Please consult your owner's manual for wire identification. Reversing these wires should resolve the issue. Additionally, on a pneumatic controller it is possible to have left the motor on high speed when exiting the spa, which will cause the unit to always come back on in high speed. To correct this, simply turn off the motor or if in circulation mode, return to low speed before exiting.