Hi, can anyone help? when i turn h/w tap on boiler takes 15-20 seconds to fire up, then gives me about 30 secs of h/w before shutting off??, if i leave the h/w tap open the boiler will only re-fire after 1 minute giving me another 25-30 secs h/w....?? anyone?
Ocean Alpha 240p.....H/W Prob
- Thread starter jeffmiester
- Start date
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Does the pin come out of the diverter valve and activate hte boiler immediately or not? If not then I suggest a dodgy diaphram.
If the pin is doing the business and the boiler is not cycling properly then I suspect a scale/sludge problem. This is, of course, assuming i am thinking of the right boiler.
If the pin is doing the business and the boiler is not cycling properly then I suspect a scale/sludge problem. This is, of course, assuming i am thinking of the right boiler.
If the boiler fires up initially each time then diaphragm s/be ok. From what you have described the problem is caused by a blockage to the primary side of the DHW heat exchanger. This prevents heat transfer to the DHW side hence boiler reaches temp prematurely and closes whilst water at outlet. cools. If tap left running boiler re-fires later when primary cools below control stat limit. New plate DHW will cure, look at system cleanse and filter on return pipe long term.
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cheers NIXT/DAN, ta very much, will get it checked out.
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