baxi 105e

21 Mar 2007
Reaction score
United Kingdom
i have a baxi 105e instant,flue warning light on ,i noticed a leak from the dhw valve,leaking into the microswitch,i changed the diaphragm,it worked perfect for one hour then i noticed it is still leaking??
any help appreciated :(
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The nut (gland) that it is leaking from has a nylon seal in it that wears ,replace the nut(gland)
cheers :LOL: will try that today & let you know////i just assumed that no water should get past the diaphragm....
i said the leak is from the dhw,sorry its from the heating valve on the 3 way manifold,pretty identical to the dhw valve,still i changed the diaphragm as stated earlier post,it seems that the heating comes on for 1 hour then goes off,the pin on the valve stays in? i assume that when the system pressurises is when the water is forced out of the pin,,do you still think its the nut gland??
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