Welcome to our forum.
Yes, I have bubbles and I have pushed the reset on the heater. At one time my wife said the water didn't feel as hot as it once was and I was told the heater may have some restrictions. I drained the tub, installed new filters and it worked ok until I started having this leaking problem and I have drained the tub several times trying to find a leak and have not had it plugged up enough to know if it worked until now and I left it plugged in even with the leak for almost a week now and the water is still cold.