JVA 2440 rotates continuously in spa mode

Have you tried using the three way toggle switch on the JVA? It might be in the locked position.
If the JVA is not working you can always move the valve manually until you replace it.
First, put the directional toggle switch in the locked (center) position.
Second, loosen the retaining screw on top of the JVA handle about half way to three quarter out.
Third, push down on retaining screw firmly to disengage JVA.
Fourth, while pushing firmly on retaining screw rotate valve manually with handle to desired position.

That is because the return line to the spa and pool are on. This is expected behavior. This is to keep water circulating.

Jay,
I had the same problem. The issue is the microswitch "stop" in the valve actuator ( the motor assembly that turns the valve). Open up the actuator case and switch the valve to the direction it does work. You will see the microswitch that does work. Now, reverse the valve to position that it spins on and replace that microswitch. The microswitches are about $25. Good Luck

Try this. On the suction valve their is a JVA... actuator and on the end of it their is a small toggle switch and all you have to do is change the position of this. Hope this helps.

Probally your return JVA is not turning all the way. If it was going down fast that would mean not turning at all and you would probally need a new JVA. Not getting all the way around means the cam has probally slipped. If you have a book (more of a pamphlet) on the JVA it can walk you through adjusting the valve. It is worth it it comes with pictures.
Pull the handle and remove the top of the JVA by removing the six small screws. Once it is open than you can loosten the set nut on the shaft and adjust the valve to the full spa position. The cam on the shaft will need to be set so that the valve goes off when it reaches this position then you will need to tighten the set screw again. Run the valve a few times to be sure it stops when it should. If you have it set then go ahead and put the top back on. I hope this helps, good luck.

the only thing you can do since the jandy does not have a "winter" mode is switch the valves off. Once you have the valves in spa mode, there should be a toggle switch on the valve actuators. You can set the switches to the middle position and that will lock them in that position. You will probably have to re-winterize the pool lines.

can't be made the only is to cancel the delay on the back dip #4 heater cool down turn off breaker when do this also change assign jva at system setup

one of your automatic jandy valves is not working and if is not all the way around for pool the system on pool mode won't start you have two automatic jandy valve actuators one on the suction side and one on the return side go there and see wich vave still on spa mode this actuator needs to be replaced also check your control inside your house make sure you don't have it in spa mode