HI All,
I'm new to be forum thing so please bear with me. I have an automated pool filtration system that uses two CVA-24 actuated valves to switch between the pool and spa modes. Late last year, one of the valves failed and I was able to dismantle it and locate the problem. It was two of the metal gears that had lost some teeth. I was able to get replacement gears (~$50) and reassembled the actuated valve to get it working again. Initially, I had issues with the alignment between the micro-switches and the actual valve position, but was able to work out that the plastic "cam-rings" on the shaft could be independently adjusted. Once I had that worked out, it all functioned well. I tested the system by switching between pool and spa modes and watched the valves move correctly.
Last night I tried to tun on the spa and went outside a few minutes later and the spa tub was empty and the main pump running dry. The same actuated valve had moved to a odd position and pumped water back to the pool. Re-examining it again today and switching between pool and spa modes I found the following problem. Intermittently, the problem valve was turning in the wrong direction to it's normal operation. This caused the cams to activate the micro-switches from the opposite side and stop the valve in the odd positions. After working with it for a while, I was able to get it back in line and working normally. But for how long before it screws up again? My fear is that it may occur when I'm not home and burn out a pump (or worse).
My primary question is what is the faulty part of the valve? Is it the circuit board attached to the selector switch? Or maybe one of the micro-switches? Any thoughts would be greatly appreciated.
I'm new to be forum thing so please bear with me. I have an automated pool filtration system that uses two CVA-24 actuated valves to switch between the pool and spa modes. Late last year, one of the valves failed and I was able to dismantle it and locate the problem. It was two of the metal gears that had lost some teeth. I was able to get replacement gears (~$50) and reassembled the actuated valve to get it working again. Initially, I had issues with the alignment between the micro-switches and the actual valve position, but was able to work out that the plastic "cam-rings" on the shaft could be independently adjusted. Once I had that worked out, it all functioned well. I tested the system by switching between pool and spa modes and watched the valves move correctly.
Last night I tried to tun on the spa and went outside a few minutes later and the spa tub was empty and the main pump running dry. The same actuated valve had moved to a odd position and pumped water back to the pool. Re-examining it again today and switching between pool and spa modes I found the following problem. Intermittently, the problem valve was turning in the wrong direction to it's normal operation. This caused the cams to activate the micro-switches from the opposite side and stop the valve in the odd positions. After working with it for a while, I was able to get it back in line and working normally. But for how long before it screws up again? My fear is that it may occur when I'm not home and burn out a pump (or worse).
My primary question is what is the faulty part of the valve? Is it the circuit board attached to the selector switch? Or maybe one of the micro-switches? Any thoughts would be greatly appreciated.