worcester 28i junior water problem

[St0rmer66]

Doesn't explain the low flow rate and the reason it's so hot is because it's going through your boiler so slowly and picking up lots of heat. Your boiler doesn't have a temperature control but it does have a temperature limit for the water, if it's going at a very low flow rate though it will hit the limit and cut out then come back on when it's cooled down (hence the original problem).

 

[Terry lambert]

I would be cutting into the cold inlet in to the boiler to what flow/pressure I have and then cutting into the hot below the boiler and checking the flow out of the boiler.

IF the plates been changed and filter checked, I'd want to be sure the problem wasn't external to the boiler

 

[Agile]

I think that you can reduce the hot water temp somehow in software settings.

Tony

 

[St0rmer66]

I think that you can reduce the hot water temp somehow in software settings.

Tony

You can, for scald protection. But that would limit it way too low. He's having a flow rate problem and I expect the temperature problem would be fixed if the flow was good.

 

[gigz]

Did your gasman try taking the flow regulator out and try it without it ? I would whip cold inlet off, check that then hot outlet off the boiler, rig a flexi up and try that. Not very time consuming and it should prove where the blockage is.

 

[Terry lambert]

I would be cutting into the cold inlet in to the boiler to what flow/pressure I have and then cutting into the hot below the boiler and checking the flow out of the boiler.

IF the plates been changed and filter checked, I'd want to be sure the problem wasn't external to the boiler

 

[gigz]

I would be cutting into the cold inlet in to the boiler to what flow/pressure I have and then cutting into the hot below the boiler and checking the flow out of the boiler.

IF the plates been changed and filter checked, I'd want to be sure the problem wasn't external to the boiler

I should pay more attention

 

[Agile]

I check sensors by measuring their resistance.

It always surprises me that some RGIs don't want to do that!

Perhaps its to change yet another part at the owner's cost and thus boost their income?

Tony

 

[Terry lambert]

Don't some fault at some temp ranges but not at others, so difficult to diagnose sometimes?

 

[jamesjones1980]

Since the work was carried out Thursday. The boiler hasn't cut out yet but the water is very very hot and still have the very average flow rate on the hot. Cold pressure is very good.