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Postby mustang » Sat Mar 17, 2007 6:46 pm

the hot water demand light flashes rapidly approx 30 secs after either demand for dhw or heating. any ideas
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Postby KEVANS02 » Thu Mar 22, 2007 9:24 pm

if i remember correctly this fault indicates an air pressure problem, this can be that the fan isnt running,or the air pressure switch is faulty, or the air pressure tubes are damaged or have come disconnected. could also be a blocked flue.

i am 95 % sure that this is the fault,

hope this helps
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