Query boiler not giving heat or hot water?

I have a Saunier Duval F24E:2 and the red and green lights as on constantly. The thermostat is showing at 21 and flashing. Tried the reset but still the same. Water pressure stuck at just over 1 ba ... more

saunier duval boiler problem?

I have the model thema condens F 24 E. I have no manual. but the boiler has switched on eco mode. I don't know how to switch it off.

done

Boiler blowing fuse?

The PCB fuse keeps blowing on my Saunier Duval isotwin condens f35e, What should I check.

setting timer?

I have a saunier duval thelia 623 and want to set the timer but have no instructions, can anyone help?

saunier Duval is over pressurising when the heating is on. ?

How can I stop a Saunier duval F28e from over pressurising when the heating is on and also stop it losing pressure when it is off???

done

How can I fix my Saunier Duval Semia Condens boiler?

The Central Heating (CH) side works perfectly but the Domestic Hot Water (DHW) has developed a problem, thus... Turn on hot tap, boiler lights and after a few moments hot water starts coming through t ... more

done

saunier duval sd620f?

can anyone tell me what the air pressure should be on the expansion vessel please

done

saunier duval?

keep getting f1/f4/13 whats it mean got no manual had to engineers round still same ,can you tell me whay it means ,(codes)

done

heating?

saunier duval 60ff. heats water but central heating not working

done

My saunier duval combi boiler keeps switching itself on & off?

As above. Even when set to holiday? Please help!

saunier duval f30e?

when trying to bring the pressure up from the 5bar to 1 the water starts to come out the recuced pressure zone value

Saunier Duval Thema Condens F24E?

The cold water filter is leaking - is this a replacable part, and can it be undertaken by oneself?

Why does my well serviced F30 E continue to display F26 code?

My Saunier Duval Thema CONDENS F30 E continues to display code F26 even though it has been fitted with a MagnaClean and serviced by a reputable service engineer. S D themselves have no answers and it ... more

Saunier Duval F28e SB?

Saunier Duval F28e SB wont start up, no light just a bar reading.

Saunier Duval Combi Boiler Pressure Rises?

Hi Hopefully someone can answer this problem for me please? I have a Saunier Duval Thema Condens F30e Boiler which recently had the heat exchanger replaced (intermittent hot water). However, si ... more

done

i have saunier duval combi?

saunier duval combi boiler has no L.E.D display on boiler but fuse in plug ok ?what could it be? i have no heating or hot water

done

Noisy Saunier Duval Thelia 20 n No Hot Water / Heating but pilot ON?

My Boiler Want Fire Up though gas pilot light is on and can hear constant noise from the boiler of running Fan noise or Motor , but boiler want fire up . I have reset programme clock , check water ... more

done

No c/h working saunier duval f23e combi boiler?

hot water working fine but when turning the central heating on it fires up for a few seconds and then switches off, any clues as to what the problem is.. thanks

done

I need thermocouple for an instant water heater?

I need a thermocouple for a saunier duval instant water heater

saunier duval combie boiler?

after turning the gas supply off then on again my boiler wont ignite what would cause this

done