potterton hot water flow poor boiler 7 years old

[tmac]

Hello

can anybody give possible answers as to why flow of hot water is poor.
on pipe from the heat exchanger flow there are two sensors,one of which appears to be screwed in.is it possible the end has broken off sensor and lodged itself in pipe?

thanks in advance for any help

 

[Gasguru]

What model?

Do you mean the flowrate? ie insufficient water flowing or the temperature is low?

 

[tmac]

What model?

Do you mean the flowrate? ie insufficient water flowing or the temperature is low?

insufficient water flow temperature is ok
not sure as to model not in front of boiler

 

[Gasguru]

insufficient water flow temperature is ok
not sure as to model not in front of boiler

I guess you mean the flowrate is low but the temperature of the water is sufficient.

Have you measured the flow in litres/min? perhaps you're expecting to much from the boiler.


Describe the front of the boiler.....what the switches are, what lights, where is the pressure gauge - on the front, underneath etc.

 

[tmac]

insufficient water flow temperature is ok
not sure as to model not in front of boiler

I guess you mean the flowrate is low but the temperature of the water is sufficient.

Have you measured the flow in litres/min? perhaps you're expecting to much from the boiler.


Describe the front of the boiler.....what the switches are, what lights, where is the pressure gauge - on the front, underneath etc.

The pump is on the right hand side,pressure guage is underneath,two switches on panel at front of pcb panel with a flame light,power light and lockout light. dhw flow switch is slightly to left and above control pcb

pipes for hot water go to heatexchanger on left side ch on right side
pressure relief valve on left above heat exchanger

 

[bengasman]

could it be a --80 combi -- ? it is one of the worst they ever made

 

[Gasguru]

Check the flow restrictor in the outlet of the cold water inlet isolating valve.

 

[tmac]

Check the flow restrictor in the outlet of the cold water inlet isolating valve.

ok will do and thanks for your help