Can't see how that would have been an issue. Before I broke it down to clean again it moved fine. The only thing I can think is the hot water caused the o-rings to swell.
I've found that completely washing these in dish soap and / or alcohol causes the o-rings to be a bit sticky (lack of machine oil lubrication). Putting a drop or two of eliquid on them before re-installing them makes everything run a bit smoother.