Thanks Dan for your input. Last night I finally figured it out. The 210 has what I think that they call a massage jet, which is just under the water level on the left side that at full force, creates a whirlpool effect. That is also a diverter valve, but it was stuck, full in one direction. Last night I kept thinking that like the other valves/jets, it had to move and finally, I was able to turn it to the other extreme and then all of the jets worked as expected.
BUT, also yesterday, I noticed that the display had 3 lines/dashes on it and nothing worked/responded to "input". The manual says that the high limit switch had tripped. I found that if you hold down the + and - and pump buttons for a bit, a 556 and then 8.8.8 appears and you have reset it.
The temp had dropped to 95 and it went up to 101 and cut off the heater. I checked the temp and it was 101 which is where I had it set, so I'm assuming that the high limit sensor is failing. Am I on the right track?
Thanks again for the help.