Hey guys, I have a Martinique tub that is about 11 years old. I have never replaced the heater and I think it may be time. I just want to confirm that this is the root of the problem. It started with 4 ---- flashing in the control panel. I reset the breaker and turned it on after a minute. Things seemed to be ok because the tub returned to the 99 degrees that I had it set at. I came home today and the same thing was flashing in the panel. I cleaned and changed the filter and reset the breaker again. Now I am getting "temp" flashing in the panel, and nothing is coming out of the hole in the bottom of the tub where the ozone comes out. Is this definitely a "bad" heater?
Also, is changing out the heater a big job? Is it something I can do myself or will it require a service call? Just looking for some answers here, thank you for your help!!