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- 24 Sep 2007
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I have a small water leak that seems to be coming from the join between the diaphragm housing/ motor and the main body of the R/H (3 way valve) hydraulic block. Leak is only slight, about 1 drop every few minutes and the system works ok. Hopefully just an O ring? Is this a problem area on these boilers. It is approx 7 years old and been totally reliable up till now, cheers.