Can carbon doser be repaired

[TLO45]

I have a Carbon Doser electronic co2 regulator that is not working properly. I’m wondering if anyone has a solution for repair or is it best to just buy new?
I have a large sps system and my alkalinity has been steadily decreasing…currently 6.1!
I tested the bubble count from the regulator and it is no where near what I have it set at.
Is this a simple fix or junk it?

 

[bluemon]

It’s pretty darn hard to repair a regulator, especially since you’d need to know what the problem is. If you don’t have that know how, I’d just buy a new one

 

[Jason_MrFrags]

The regulator is probably fine; it would be the electronic solenoid that needs replacing.

https://www.reef2reef.com/threads/stuck-carbon-doser-regulator-repair.1112968/