Got to go and look at one of theses boilers as customers says the dhw is only luke warm,serviced quite a few of these but it sounds like this problem has nothing top do with the burner as they say boiler is firing up,any pointers what to look for? previous engineer turned up one of the stats but prob is still there.
Grant 90 combi (oil) luke warm dhw
- Thread starter cjb1971
- Start date
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Could still possibly be a burner fault, ie- control box or photocell unit or fuel solenoid, should be fairly obvious when you look at it if thats the case.
Is this the old version with the diverter in the bottom right front with the plate heat exchanger?? If so they have a diaphragm which is usually at fault in the diverter......... iff im mistaken which boiler it is try looking at the blending valve on top and check for output from hot and cold feed to mixed side.
On the other hand I may be mistaken completely and my memory really has gone
On the other hand I may be mistaken completely and my memory really has gone
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