Kohler led lighting and jacuzzi motor + jets stopped working but automatic line clearing air still blows when tub is emptied.

they use seperate pumps and one of them is bad or needs new capacitor.

The workings of a bath jet...From the inside of the Bath there is a wall fitting that threads from the inside of the tub into the jet body located on the outside wall of the tub.
If the jet is leaking at this point behind the tub then you should take the wall fitting out of the tub and put a small bead of 100% RTV silicone around the flange of the wall fitting and reinstall it.
If however, the leak is from the PVC piping going into the jet then you will need to replace the jet.

Rod
US Parts Center
888-521-6183

The problem you are experiencing tells me that the air switch in the motor most likely the problem.
This is a latching air switch that operates when the button on the side of the tub is pushed.
The replacement TBS-339 air switch is around $21

Rod
US Parts Center

This is sounding like a relay not working on the circuit board inside the control box. You will want to have a Kohler service center send someone out to have it checked. You most likely need a new control box.

yes. that clear hose goes onto the air switch on the back of the motor. once that is hooked up if you push the air button then the pump should turn on/off for you.

should of primed it first ?

you have a bad motor - when a motor overheats there is a sensor inside the motor that will shut if down so as to not damage the windings and such. once your tub has cooled down for 10 mins or so it will turn back on. the fact that you can push the button multiple times just means that you are turning the air switch on the back of the motor on/off until you get to the point where the motor has cooled down and will turn back on. if you do not push the air button after the tub shuts down and you finish your bath then when the pump cools down it will come back on because the air switch in the motor is latching i.e. it is either on or off. Since you left it in the on position the motor will come back on once the motor has cooled down.

Kohler Whirlpool tub turns on and shuts right off. Reset gfi and motor turns on and shuts right off. Help

This is a problem common to all whirlpool/air jet style tubs. The pumps become air locked due to the water evaporating from lack of use. All tubs need, and have, SOME means of priming the pump, this is most likely what the problem was, originally, for you. This time in particular you found it to be electrical in nature but for future reference, for you and all who have these style of tubs, I am putting this out there. Some where on the tub, usually along the top edge of the tub is a vent knob that controls the amount of air that the pump is allowed to mix with the water for the jets, usually by closing this valve all the way (tub needs to be full of water of course) and running the pump for a minute or 2, you should be able to get the pump pumping water again, if not you may need to do something else with your particular set-up to get it purged of air, the pumps in jacuzzi tubs are designed to pump water, not air, so if the motor is running but you get no jet action, your most likely air locked and need to prime pump/purge air.