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Actuator/Valves are not in Sync with the control panel

My system has standard pair of valves to control the circulation - Pool mode, Spa Mode, Spa Drain, Sap Fill.....after removing the actuators to replace some parts, the actuators are out of sync with the Pentair control unit. e.g. in Pool Mode the valves rotate to Spa Drain, and so on....my actuators are VOR-24 Compool, kinda older models, and they do not have a toggle switch on the bottom. I have tried swapping the low-voltage cables, and that changes the behavior, though it's still not in sync with the controller.

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  • Jonathan van den Berg
    Jonathan van den Berg Mar 27, 2014

    It is very possible that i installed the actuators on a different valve than they were originally on, not thinking that it mattered, but perhaps it does. I think i could easily just swap the two actuators and see if this resolves itself, of course i'd love to know if anyone knows if this is the likely cause

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  • 372 Answers

You may have to open the valves and reset the cams. Not too tricky, just a lot of trial and error to get it just right
FYI when you decide to replace the actuators, Intermatic now makes a direct replacement for both Compool (Pentair) and Jandy models. They are significantly cheaper.

Posted on Mar 30, 2014

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Posted on Jan 02, 2017

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SOURCE: JVA 2440 rotates continuously in spa mode

If you remove the handel and open thr top of the actuator you will see a set nut on the center of the shaft that you use to set where the valve stops. If this is tight then you may have a bad micro switch in the unit and you should replace the actuator. Good luck.

Posted on Jan 20, 2010

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I have a Jandy Aqualink pool system. When I turn on the spa and heater, the spa drains..I've never had this happen but don't use the spa much. What should I check?


His is not typically a control panel issue but more likely a valve issue.

Your valves are set as follows wih a few minor variations.....
Pool mode- sucks from pool skimmer and or pool vac line and returns water to both the pool and spa.
Spa mode - self contains the spa , meaning water is sucked from the spa and returned only to the spa.
If your spa is draining then most likely one of your electronic valves is failing...most likely it's the return valve so what is happening is the water is sucked from the spa and returned to the pool instead of self containing the spa.
Easy check is to be next to the equip when spa mode is selected and two valves should move and align properly, the return side valve is most likely not moving or it is not moving into the correct position.
The fix is either adjusting the valve acuator or buying a new valve acuator.
Another thing to check is on the main panel circuit board to ensure the return and auction 3 pin plug ins are still connected.

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My controller says it is in spa mode - trying to heat only spa- but water is spilling into pool. I have 2 jandy valves, only 1 moves when I change from spa/pool mode. Any suggestions?


The valve actuator on the suction side is either bad or the toggle switch on the back is in the wrong position. There are 3 positions for the switch on/off/on. It should be in either be all the way up or all the way down. In spa mode move the toggle switch. If it still doesn't move then you have a bad actuator. If it moves someone has moved the switch.

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I have an Aqualink RS that will not turn the pool's filter pump on either by remote or in service mode


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System will not switch from pool m ode to spa mode. I use the remote control and it says the spa mode is on but the pool mode continues to function


First check to see if the valves can be operated manually. There are tiny switches on the side, end or underneath of the automated valve actuators that can be switched to operate the valves manually. With the power on and with the switch in the center position the operator should not move. In the other two positions the operator should move the valve to one limit or the other. If you cannot get either operator to function manually this way then there is likely a problem in the control system. If you still have a problem feel free to respond send me the results and I will respond with more things to do. I hope this helps.

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Spa won't heat unless in spa mode, and if it is in


On the automated valves there are tiny switches on one end or under the valve actuator. When you switch to the spa mode the suction valve should should move to fully block pool drains. The return valve should fully block the pipes to the pool returns and spa fountain. If one or both of these valves is not fully blocking the pipes to the pool then the tiny switch on that valve is in the wrong position or an operator is defective. The middle position of either of these switches turns the operator completely off so it cannot move. That is the position to avoid unless you want to operate it manually. One of the other switch positions caused the valve to move in one direction and the other switch positions causes the valve to move in the other direction. If you set the switches so when in the spa mode water is circulating only in the spa then you have the valves in the right position. Next, place the system into the pool mode. Both valves should move to the other position. If not then the valve operator that doesn't move has a problem. It could be the operator, the wiring, the control panel or a stuck valve in that order. All of this sounds complicated but once you know how the operators should act when you flip those tiny switches and how the valves should act when in the spa and the pool mode then getting the switches set right is simple. I hope this helps.

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1 Answer

JVA 2440 rotates continuously in spa mode


If you remove the handel and open thr top of the actuator you will see a set nut on the center of the shaft that you use to set where the valve stops. If this is tight then you may have a bad micro switch in the unit and you should replace the actuator. Good luck.

Jan 07, 2010 | Jandy Aqualink Rs4 One Touch Control...

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Jandy aqualink rs4: pool has been winterized with the spa left on. when switched from service mode into auto mode system switches back from spa into pool mode (motorized valve switches back to pool mode)....


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.

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1 Answer

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This problem can be caused by a couple things. the two most likely culprtits are either the absence of check valves and or incorrect actuator settings when the pump shuts down.

Your spa is most likely higher than the pool. You most likely have a spill over (waterfall) feature from the spa into the pool. This is so the spa water can be recirculated in pool mode. One of your actuator valves may be slightly off closed position in order to allow spill over in the spa, or you may have a dedicated overfill pipe in the circuit to feed water to spa in pool mode.

Whichever spill over piping you have set up, when the pump shuts down, water from the spa ( higher level than the pool) will backfeed through the overflow spa circuit, back through the pump and into the pool through either drain or return. Effectively rendering your spa level the same level as your pool.

To fix this problem, simply install check valves into the spa runs and as a secondary measure put one into the pool return run ( the run that feeds water to pool).

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