My old heater stopped working right about three years ago. It wasnít worth repairing and I couldnít afford a new one at the time. So after three years, I finally got a new heater. The first time I used the spa and heater it was great, I had forgotten how nice a heated spa was. I only use the heater for the spa, I never heat the pool.
The second time I used the heater and spa, the jet action of the water being returned to the spa was noticeably diminished. I checked the pool and there wasnít any water being returned to the pool, it was just being returned to the spa. After about an hour, I turned the heater off to let things cool down before turning off the pump. As soon the heater was turned off, the jet action in the spa became very strong. I left the pump running for about an hour and when I went to turn it off, it didnít seem like the temperature of the water had dropped at all.
The third time I used the heater and spa, the jet action of the water was even more diminished than the last time and it stayed like that even after I turned off the heater. If I covered a few jets, some bubbles would come out of another jet for a few seconds, but that was it. When I turned the heater on, it made this weird whining sound, almost like a jet engine, for about 15-20 seconds while it was flashing ďSparkĒ and before ďWater HeatingĒ was displayed. Other than that, the heater seemed to work fine.
The fourth time I used the heater and spa, there was no jet action at all. The flow of the water being returned was really weak and it stayed like that the whole time even after I turned off the heater. Covering the jets made no difference at all. The heater made that same weird whining sound when I turned it on but other than that, it worked fine.
A couple things to note:
After using the spa the first time and before using it the second time, I cleaned out the pool pump strainer basket. As soon as I take the lid off I shove a hose in the pump while I clean out the basket but some air always gets in anyway. I stuff a tennis ball in the strainer too but it usually pops out so I always have to prime the pump when I start it up again. This time was no exception. Could this have caused the problem?
Right before we used it the second time, my son-in-law took that silver dome lid off the air blower to look at the filter inside even though I asked him not to. I already knew it was in bad shape because it was three years ago and I wasnít planning on using the air blower. Everything worked great the first time so I didnít want to mess with the filter at this time. I havenít been able to find a replacement filter for this anywhere. Could this have contributed to the diminished jet action?
I also noticed that the air tube has a crack in it. It didnít used to be like that and Iím not sure when this happened. I think it was intact the first two times we used the spa but I donít know for sure. I taped it up to see if that made any difference but it didnít. I know this has to be replaced but I think there were issues before this was cracked.
Since I didnít have heated water running through the system for three years I thought maybe the hot water caused the seals in the Ortega valves to shrink a little but if that did happen then I would think that some water would be returned to the pool and itís not. It seems like Iíve got air trapped in the system somehow but I donít know how to check for that. If anyone can help me solve this I would really appreciate it.