I started up my pool heater today and I started hearing a loud moaning sound. I did a bunch of research and everything pointed me to the unitherm governor being bad. I took it out and it wasn't snapped into the plug. Also, the gasket was pretty twisted and the governor had a small hole in it. I tested the governor in a bowl of hot water and it appeared to work. I don't think it was seated properly.
The weird part is I ran the heater without the governor for a few minutes and it is still groaning and howling. I pulled the return header off to check the tubes and they are all clear from that side. My question is, what else can I look for as the cause of the howling? I plan on taking the other header off to take a look.
I noticed when I pulled the governor plug out after running for a few minutes, the water was very hot and there was steam coming out. I was also seeing HL2 codes today. I'm assuming without the governor, the chances of an HL2 error should be low since the flow of water should be 100% through the system?
https://youtu.be/0Ch-AXw4OwE
The weird part is I ran the heater without the governor for a few minutes and it is still groaning and howling. I pulled the return header off to check the tubes and they are all clear from that side. My question is, what else can I look for as the cause of the howling? I plan on taking the other header off to take a look.
I noticed when I pulled the governor plug out after running for a few minutes, the water was very hot and there was steam coming out. I was also seeing HL2 codes today. I'm assuming without the governor, the chances of an HL2 error should be low since the flow of water should be 100% through the system?
https://youtu.be/0Ch-AXw4OwE
