Pentair valve actuator CVA-24 is stuck

rwrDick

Member
Jun 7, 2019
6
Livermore, CA
I read the postings and responses to this problem, and did not find a solution. I read that 99% the time, it is the limit switches that are the problem. I am a one-percenter. I checked the switches, and they are fine. I removed the motor from the valve gears, and it works fine. When the motor is replaced and power applied, I hear the motor trying to turn, but it cannot. With the motor installed, I cannot manually turn the valve with the switch in the middle (off) position. If I remove the motor, I can easily turn the valve manually. I can also easily rotate the shaft on the motor with my fingers. It is only when fully put together that the motor will not turn the valve, and the valve cannot be turned manually. Any suggestions? Thanks!
 

rwrDick

Member
Jun 7, 2019
6
Livermore, CA
Thanks very much. I tried your suggestion, and that was not the problem. However, I fiddled around, did essentially nothing, and it started to function properly! I have no explanation. I will hope for the best -- and may have to return later!
 
Last edited:

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
19,788
Northern NJ
To turn the actuator manually you have to disengage the gear train. Have you done that?

It is normal to not be able to move the valve with the handle when the actuator is connected.

Manual Override, Power Off (Jandy and should work for others)
  1. Move toggle switch located on the bottom of actuator to the OFF (center) position.[12]
  2. Unscrew (counterclockwise) the locking knob above the handle four (4) full turns.
  3. Push down on the locking knob (not the handle). This will disengage the gear train and allow the handle, and thus the valve diverter, to be moved to any position.
  4. To return the actuator to automatic position, pull up on the handle while turning it clockwise or counterclockwise until you feel the shaft slide up into the gear train. Turn the locking knob down (clockwise) until snug.
  5. Put toggle switch back to the original position.
 

rwrDick

Member
Jun 7, 2019
6
Livermore, CA
Thanks for the suggestion. As you see above, I did nothing but hunt for the problem, did nothing, and suddenly, it works again! My fingers are crossed, in the hope the problem does not inexplicably return.
 
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lakeboater

Bronze Supporter
Mar 8, 2018
32
Naples, FL
This same thing happened to me. I disassembled things but repaired nothing and it has worked fine for over a year. The only thing I could think was that the commutator and brushes were in the "wrong" spot.