Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Heat in one zone not working well
Hello, thanks so much in advance...
I have a three zone boiler heating system. All of the sudden one zone does not work well. The heat turns on from the thermo, stays on for 5 minutes and goes off. I have tried a bunch of stuff...
1. I bled the zone, made no difference
2. I just bypassed the thermo by connecting R&W to keep it calling for heat, the baseboards get hot then shut off after a few minutes.
3. I tried forcing open the zone valve to test that, even in manual open mode the baseboards stay warm, not hot
Nothing seems to help, the other two zones work perfectly. This zone just gets warm and stops getting warmer. The zone pipe and return pipe are both hot to the touch, so the water is making the trip around the system.
Any advice on what to try next would be greatly appreciated.