Halstead boiler problems

[DavidD]

please could someone advise as to why my Halstead Quattro Gold will not supply DHW The Ch works ok but when I turn on a HW tap the boiler will cut out if CH is running. we have had a problem for ages with the DHW cutting out. Last year the Diverter was renewed and since then DHW kept locking out and the preasure drops all the time. I have reset the preasure but it always drops to zero Please could someone advise if this is a diverter problem again as dont want to pay £400 for plumber again

 

[kevplumb]

if the pressure is dropping you have a leak or the pres relief valve is passing

 

[the boiler technician]

the gas pressures for this boiler are different for hot water and central heating, if the hot water causes the boiler to fail which button are u resetting, the 1 on the front, next to the on off switch or u say quattro, the overheat button on the TOP of the boiler. the white button on the front is lack /failure of ignition ie no gas or spark, the button on the top of the boiler is overheat. two different faults. need more info to determine fault fully.
the boiler technician

 

[the boiler technician]

sorry quattro gold has a dark red reset botton UNDER the boiler about middle of the bottom chassis.
T.B.M

 

[ChrisR]

The Halstead Quattro diverter is one where (even) I don't charge RRP for the part. At £150 + vat (=176) it's a rip off.

 

[kevplumb]

evening dell

 

[DavidD]

Thanks for your replies good news is I now have DHW after replacing the Thermistor, my only problem now is that the CH & DHW keep going into overheat lockout. Could this be the pump over run thermostat that is causing this or is it the PCB that i am being quoted for.

 

[delb0y]

hi folks

does anyone know where the pressure value is to on these boilers?? mines is the same and has droped to 0 and red light is on i can reset it but it will lock out again as there is no pressure ..

cheers

 

[ChrisR]

where the pressure value is to

If you mean where the filling loop is, it's in the manual, and don't pick up ancient posts.