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hi can anyone tell me is there a seal on the diverter diapragm rod to the micro switch .if so where could i get this seal and can it be fitted without dismantling the whole unit.the boiler is a worcester 28cdi with a giannoni valve.thanks

hi all new to this site .wonder if any of you experts can help me .got a worcester 28cdi boiler 18 months old and has developed a small drip from the operating rod on the diverter vavle .can you tell me can the diaphragm be changed without removing the whole unit.it looks a bit tight but may be...