Hi all.
My saunier duval thema condens f30 holds pressure. Until heating goes on then after it goes off pressure drop to 0.4 prv has been changed which worked for about a day which stopped the overflow from dripping but now has started again. Also checked expansion vessel pressure which hold ok. So now at a loss. Any help would be great. Thanks in advance. Hopefully have a warm house for Christmas. Thanks again mark
My saunier duval thema condens f30 holds pressure. Until heating goes on then after it goes off pressure drop to 0.4 prv has been changed which worked for about a day which stopped the overflow from dripping but now has started again. Also checked expansion vessel pressure which hold ok. So now at a loss. Any help would be great. Thanks in advance. Hopefully have a warm house for Christmas. Thanks again mark
