is it a common prob to have a buzzing vibration constantly with mr suprima 50 ,we have just moved in to a house with one ,and first thing in the morning it seems very loud,it was installed in 2004 we are told by previous owners,we have tried packing rubber washer,s bettween all the pipework in the airing cupboard,i even wondered if it was the fan,any answers, anybody,
peter ryan, April 2012