How to mend ... Saunier Going Water

saunier duval thelia 23?

new house - dead boiler. I have replaced the diverter valve & piece which it mounts to, now the micro switches... [Read more]

When heat in thermostate put two on , heating comes on for a while?

When heat in thermostate put two on , heating comes on for a while and when heatings on no hot water but pilot... [Read more]

Saunier Duval SD623: Flame goes off and on when boiler is on high setting?

For the past few months the boiler flame goes off and then on repeatedly when boiler is on high stting (when h... [Read more]

Increasing water pressure?

How do I increase the water pressure in a Saunier Duval Thelia 23? I believe this is done by locating the fili... [Read more]

loosing pressure from my saunier combi and water from the expansion pipe?

the combi works fine when the heating is on but when running the tape water the pressure begins to rise slowly... [Read more]

leaking boiler saunier duval sd 623 14 years old?

i have a saunier duval boiler that is leaking inside it is leaking from some sort of housing at the bottom of ... [Read more]

What has stopped my combi boiler working suddenly?

My Saunier Duval combi boiler (sorry no model no.) has suddenly stopped working. Before, a green light would ... [Read more]

thelia 23 boiler. No hot water upstairs when heating is on?

I have a Saunier Duval combi boiler, Thelia 23. Hot water works fine upstairs and down when the heating isn't... [Read more]

saunier duval boiler fault?

the aformentioned boiler does not heat the water but central heating ok sorry no model number to hand at this ... [Read more]

How do i fix Saunier Duval boiler - Model Thelia 623?

I have water seapage from the pump around the top of the serrated brass cap at the top of the pump (to the fro... [Read more]

hi my Saunier Duval boiler leaking from inside also?

boiler leaking from inside also when hot water tap on few readitors getting warm anyone know why thanks

h6w can i fix my saunier duval f23e boiler?

radiators keep getting hot when the hot water is in use even though heating is switched off at the main switch... [Read more]

unable to fill my combi?

i removed a radiator then when i came top the water back up i cant seem to get it to fill i opened the air ven... [Read more]

my saunier duval sd40 water heater for my caravan the pilot light is n?

the pilot light will not stay on when i take my finger of the button replaced the main water tank last year tr... [Read more]

the pilot light keeps going out when im trying to light?

sut is collecting round the boiler cant get it to work just got a new tank were the water runs through it last... [Read more]

Saunier Duval SD623?

The pressure reads zero and the valve that usually repressurises the system does not work, almost as if it has... [Read more]

Saunier Duval has gone off!! Please Help!!!!?

Hi,Iv got a Sauner duval Boiler F23 its about 5 years old. The fans fine,pumps fine,control pcs's are fine. ... [Read more]

How to repressure a Saunier Duval SD623 Combi Boiler?

My sister-in-law has a Saunier Duval SD623 Combi Boiler and only now getting luke warm water from the hot taps... [Read more]

Problem with Saunier duval SD 30e?

When i run water the boiler fires up but the L.E.D lockout light illuminates after about 5-10 seconds.The same... [Read more]

I have a saunier duval sd623 combi, I have no hot water or heating?

I have a saunier duval sd 623 combi, I have no hot water or heating. When I turn a tap on the second(main) he... [Read more]