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    Do I need a new expansion vessel?

    Hi, I have a Heatslave 15/19 oil fired combi boiler. The boiler is slowly losing pressure...I am not sure where though. The pressure relief pipe that goes outside is dry. I have pumped air into the expansion vessel and when I do I can hear water bubbling and gurgling in the tank...
  2. Y

    Heatslave 15/19 Boiler Popping Noise when using H/W

    Hi, As above, I have a Heatslave 15/19 oil fired combi boiler. Regrettably, I had managed to let the oil tank get too low (the tank wasn't empty, there was roughly about 90 litres left in there, but it seems not enough to get the boiler working) but the tank has now been refilled, and I...
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