Thanks, fault was blocked heat exchanger but removing it my plumber damaged overheat stat and being a Sunday no spare. When i checked found stat open circuit, suspected in normal operation there should be continuity but just wanted to check.
When checking electrical continuity across terminals on the overheat thermostat. If thermostat cold (not tripped) should the reading be continuity or open circuit
its all hot water taps, noticed some small black deposits when using hot water recently, as said previously water flow went to trickle, last night stopped completely. I have fed direct cold water through washing machine pipes to see if air lock as well. CH still working fine. If scaled up would...
Need some advice guys. I have a worcester bosh 24i combi boiler which has been nothing but trouble, its about 2 years old and currently i have all heating system working but the hot water firstly theperformance started to deteriate, then the hot water would only work with heating on, now we have...