N
nr0
Looking for some advice please guys,
I have a grant V90 max oil combi.
The two issues I'm having are the DHW temp is dropping off, and the DHW is not taking priority over the CH.
The reason for the post is that most threads I've read point towards the diverter valve diaphragm, but in the last month it's had a new genuine grant diverter valve and plate heat exchanger.
Fitting the heat exchanger improved the water temp dropping off slightly but not 100%.
One more thing (not sure if it will help anyone diagnose my issue further), the boiler was losing pressure also, so I've replaced the expansion vessel, which eliminated the pressure issue.
Not sure what else to add, other than the boiler seems to function as it should other than what I've wrote above.
Any advice greatly appreciated.
NR
I have a grant V90 max oil combi.
The two issues I'm having are the DHW temp is dropping off, and the DHW is not taking priority over the CH.
The reason for the post is that most threads I've read point towards the diverter valve diaphragm, but in the last month it's had a new genuine grant diverter valve and plate heat exchanger.
Fitting the heat exchanger improved the water temp dropping off slightly but not 100%.
One more thing (not sure if it will help anyone diagnose my issue further), the boiler was losing pressure also, so I've replaced the expansion vessel, which eliminated the pressure issue.
Not sure what else to add, other than the boiler seems to function as it should other than what I've wrote above.
Any advice greatly appreciated.
NR
