Unfortunately, Jandy, the manufacturer of our heating unit is no longer supporting what they consider to be an outdated model. (we purchased it new just 4 years ago) After a lot of searching, we have to accept that some of the replacement parts we need are not available. We therefore have no other choice but to order a brand new replacement heater. That likely means another few weeks of downtime.
We are very sorry.
We all miss the hot tub during this cold weather.