November 28, 20169 yr 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.
November 29, 20169 yr Author 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!
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