Jadnashua
Retired Defense Industry Engineer xxx
Things move when you start the flow...if it doesn't get to the point where it's blocking the flow once it stops, it may not, but when you shut the valve off, it can fall back, ready to try the next time.
Again, I'm not saying this is your problem, but it seems the most likely.
If there's a significant difference in pressure between the hot and cold lines, the spool valve will move to try to reduce the volume on the other side to try to keep the balance between them the same...that tends to shut the flow off at the extreme rather than just affecting one side, though.
Again, I'm not saying this is your problem, but it seems the most likely.
If there's a significant difference in pressure between the hot and cold lines, the spool valve will move to try to reduce the volume on the other side to try to keep the balance between them the same...that tends to shut the flow off at the extreme rather than just affecting one side, though.
