follow this steps and fix it. God bless you
If the unit won't start, make sure power is on at the electrical outletor the electrical panel Then test the pump and the motor. Check for and repair broken wires or loose or corroded terminals. If necessary, have the pump switch control tested and serviced professionally.
If the jets do not work, clear a blocked water intake of hair and other particles (see below) or replace a broken jet (see below).
If the water in your spa or hot tub is too hot or too cold, check to see if the high-limit reset switch has been tripped and, if needed, reset it. Adjust the thermostat setting and have the thermostat serviced if the problem persists. If necessary, test and replace a faulty heating elements