How to repair F4 code?

how to repair F4 code on Saunier Duval F12/1 boiler

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isotwin condens f 35 e service menu codes?

Hello, My gas boiler Saunier Duval ISOTWIN CONDENS F 35 E consumes too much gas. I ask for help in obtaining service instructions for this boiler. I am interested in a detailed description of all ser ... more

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Saunier Duval Isofast condens F35E....nothing working?

I have been on holiday and turned the boiler off at the mains, on returning turned it on and the remote said Radio fault ...changed the batteries in the remote ... nothing on remote or boiler no manua ... more

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I have a Saunier Duval Isotwin condens F 35 E with hot water No heating?

the fault on the board says F 14 which is clear on the manual but I have no idea what F 24 means. My setting is on hot water and heating but the heating is not coming on. anyone know what the fault mi ... more

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Saunier Duval Thema F23 anyone have a link for manual?

Does anyone have a link for a manual for a Saunier Duval Thema F23 please?

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Saunier Duval timeclock not working?

Home emergency plumber replaced both PCB's, now the timeclock which worked immediately before, does not work. Could this be related ie not reconnected properly? They say not and won't come out.

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Saunier Duval F35E auto-vents down to code 21 in minutes?

7 year old boiler, noticed code 21 (radiator circuit pressure low) so she opened the filling loop but left it open too long. It auto-vented, but kept going until the red light came on and code 21 agai ... more

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'f19' error report - Saunier Duval 'Thermoclassic' boiler?

Recently my boiler is failing to deliver hot water. - It is hot at first then runs cold. On examination I find the boiler is flashing red and shows the error report 'f19.' My manual says this is beca ... more

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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.

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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???

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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

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saunier duval sd620f?

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

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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)

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heating?

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

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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

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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

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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

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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

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saunier duval combie boiler?

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

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I have a saunier duval thelia 23e combi boiler?

The heating is not working & when I run the hot water the burner comes on then turns off after 15 secs and keeps trying to come on but only stays on for a few seconds. Any ideas on what the problem is ... more

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