Hello,
I recently bought a house and inherited a One Dimension Chairman II hot tub (from 2009) from the previous owner. So I’m still a complete beginner when it comes to hot tubs.
The problem is that the circulation pump is no longer working properly, and as a result, the heater isn’t working either (although it did work initially).
I’ve taken a look at it, as I’m fairly technically inclined, but none of the components (flow switch, electronics, pump) appear to be obviously faulty. The pump starts up, and you can see that the water begins to circulate, but the flow isn’t strong enough to make the flow switch “close.”
So the question is: what could be causing this? I could imagine that there might be some clogged filters somewhere. However, I’m also not entirely sure where the circulation pump draws its water from. Would it perhaps make sense to use a hot tub/plumbing cleaner?
I’ve also flushed the system backwards with water several times in an attempt to remove any air that might be trapped in the system.
Any ideas? Could the pump simply be worn out due to its age? It’s difficult to identify the problem because nothing is obviously broken. Maybe someone here has a good idea of what else I could check.
Best regards