How to mend ... Duval Hot Water

Saunier Duval Thema Condens F30E?

All summer without using the heating we have no problems with just hot water. As soon as we start using the he... [Read more]

Saunier Duval F24E Boiler?

Have a Saunier Duval F24E condenser boiler about 12 months old, pressure drops 2 or 3 a times a day after hot ... [Read more]

how can fix my saunier duval sd30e combi boiler?

with the time clock off and no hot water taps open the boiler is igniting could it be an electrical fault, a... [Read more]

why does f9 keeping flashing on my boiler, what does it mean?

my boiler is a saunier duval and it is not working at all. not the hot water or central heating. F9 keeps flas... [Read more]

How can I fix my boiler, saunier duval, thermaclassic F 30 E?

My boiler is a Saunier Duval thermaclassic F 30 E. Hot water is fine but the central heating won't come on. Th... [Read more]

saunier duval old boiler?

we have a SD combi boiler and the heating is working fine but the hot water only works when the heating is ON ... [Read more]

Saunier Duval SD 623?

Hi all, I have a Daunier Duval SD 623 that last night stopped providing any hot water or heating. Lead... [Read more]

no hot water?

saunier duval themclassic f30e got heating but no hot water anybody no what prob could be

how to fix my saunier duval twin f24 E Boiler?

I have returned after a week away to find my saunier duval twin F 24 E Boiler not working? I have no hot water... [Read more]

How can I fix the leak in Saunier Duval Thelia 23 boiler?

I have no pressure on the gauge and have a water leak, there is no hot water or heating and am desperate to ha... [Read more]

Saunier Duval Pressure Drop?

Hi Saunier Duval F28. Pressure dropped so Red Light and stopped. Checked for leaks and refilled with blue va... [Read more]

Saunier duval 623 combi not igniting?

No hot water or heating. When I press the ignition button it fires into action but goes off as soon as i take ... [Read more]

Saunier Duval Thelia 623 - No spark or full ignition! HELP!?

Hi guys, I have a Saunier Duval Thelia 623 boiler. It stopped working recently and on opening i noticed the ... [Read more]

Saunier Duval combi - central heating OK, yet no hot water?

Very useful to have these forums, so can anyone please help, or is it the changeover valve, as someone else's ... [Read more]

I have a saunier duval combie boiler?

It only boosts for hot water from a tap. it doesnt boost when i put the heating on and the radiators are cold... [Read more]

saunier duval 30 e?

just using hot water is ok. when central is on the pressure increases to over 3 bar . dicharging water via saf... [Read more]

No hot water coming from the boiler?

I hope someone can help. I had a small leak in my kitchen which was easily repaired but the mains water had to... [Read more]

boiler lock out no hot water?

saunier duval 30e. boiler locks out when hot tap is opened, if hot tap is opened while boiler is fired up for ... [Read more]

Saunier Duval SD623F?

How can i fix my Saunier Duval SD623F/VF It does neither get hot water nor heating. It seems that the prima... [Read more]

Saunier Duval Thelia 623 has hot water but no heating help?

For the last 4 weeks i have had the boiler on Summer mode ie just used fof hot water which is ok , but when i ... [Read more]