ECOMAX 824 poor DHW flow rate

[braders78]

Checked the filter on the water side of the diverter valve earlier. What I found was the remains of a filter! All the gauze has gone and the filter is completly useless!
I presume the pieces of filter have got drawn into the dhw h'exchanger.

further strip down required!!!!!

 

[Dan Robinson]

It will be sitting nicely on the flow restrictor the DHW HE. Half an hour job - although you might need some 3/4" fibre washers.

 

[braders78]

Ah nice, is the flow restricter on the cold inlet of the dhw heat exchanger then?
Id best get a new filter as well, if I can.

 

[braders78]

Seeing you had that exploded diagram of the DV, you wouldnt have the part no. for the item 9, the filter? Been trawling the web to find it but having no luck. Otherwise I'll pop into parts centre tommo!

 

[Agile]

I have been encountering several broken plastic filter elements in boilers recently in the London area..

This occurs in high water pressure areas when the water main renewal work causes dirt to flow onto the filter and partially block it.

The pressure of the mains water on the blockage will then force the filter to disintegrate and be driven into the boiler. In one case I was discussing today virtually stopping all DHW flow through the boiler.

Tony

 

[braders78]

Stripped the DHW HE out today to check for debree from the filter. However came across nothing! I took the flow restrictor out and gave it a good bowing through in both directions. The flow restrictor I would say was way too restrictive but I have nothing to compare it too. The DHW HE was blocked in no way.

Can I get a new pressure reducer, or can I renmove the pressure restrictor?

 

[braders78]

Sorry I meant flow restricter not pressure reducer!!!