Cool out side so I fired up. Checked system and found that the return temp was cool. Checked the circs valves etc. Everything looked fine. Found a cool spot at a 90 elbow. Looked like a blocked elbow. Good thing it was close to a union. Drained system and discovered elbow was clear. Turns out to be an air lock. So before you take apart, do a quick flush of system to clear air locks.
Thanks to Heaterman for recommending loctite 55. Stuff works great for rookies.
Terry
Thanks to Heaterman for recommending loctite 55. Stuff works great for rookies.
Terry