Potterton Promax HE15 leaking on inside when cold

Postby sesi129 » Wed Mar 27, 2013 10:29 pm

I have this boiler, about 7 years old now, been very good, but it has recently started to leak from inside the main unit. It happens when the boiler is cold, when warm there is no water as it seems to evaporate maybe..? Anyway it runs down the right hand side of the inside housing, I can't quite see where it is coming from , but certainly not from any of the pipes above. Any idea's..? Thanks
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