Recent content by arakrazy

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    Potterton Puma 80 no hot water DHW for 5min but rads CH fine

    Ok was watching and listening very carefully The pump and fan seem fine (i.e. full speed at the first sign of demand) The burner doesn't fire until after that 3-5min delay Thanks for the help again guys
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    Potterton Puma 80 no hot water DHW for 5min but rads CH fine

    Red demand light comes on...the only thing that doesn't "click" is one of the relays as mentioned... The left 22mm pipe doesn't heat (DHW water outlet) until the relay turns over....3-5 min after the red demand light comes on. Possibly could be the diaphragm in the flow switch but as I...
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    Potterton Puma 80 no hot water DHW for 5min but rads CH fine

    I posted the links so that others could perhaps save themselves some time. I spent hours searching the forums for info that could help and it's all confusing and contradictory... It also lets people know I have searched the forums. Any chance I could get the original post back? I don't...
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    Potterton Puma 80 no hot water DHW for 5min but rads CH fine

    I have a Potterton Puma 80, quite old I know. A few days ago we noticed that hot water became very rare. If I open the hot water tap, it flows slowly (the boiler is meant to restrict flow until the right temperature is reached) and stays cold for about 5 minutes. I hear the pump going while...
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