Bitpipe 1,209 Posted November 28, 2016 We have 3 towel rads (Zenhder) in the three bathrooms on first floor - only rads in the house and are on their own circuit. Two are hot, one is cold - has been like this since commissioning. Plumber suspected that it was air-locked and came out and 'fixed' it but it didn't last. I've tried bleeding, there is an initial release of air / water but then it slows to a trickle and then nothing. I've tried turning other two off and running pump - it eventually heats up and releases a little bit more air when bled but as soon as the other two are opened up again it goes cold. Have asked plumber to come back, but while I wait any suggestions on resolving this? Thanks. Share this post Link to post Share on other sites
PeterW 3,951 Posted November 28, 2016 Is it a pressurised system..? What is the pressure set at..? 1 Share this post Link to post Share on other sites
Bitpipe 1,209 Posted November 29, 2016 21 hours ago, PeterW said: Is it a pressurised system..? What is the pressure set at..? Yes, and I'd forgotten to recharge the vessel after the initial round of bleeding. It doesn't have a gauge but charging it up seemed to do the trick. Thanks Peter! 1 Share this post Link to post Share on other sites
PeterW 3,951 Posted November 29, 2016 It's sometimes the simple things ....!! Share this post Link to post Share on other sites
