evil saunier duval combi boiler?

can anyone help me with my HORRIBLE boiler? It leaks, it whistles, and my showers are luke warm on a good day. Is it something simple or should I take a sledge hammer to it and start again?

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can any1 help on saunier duval combi boiler?

all radiotors work well but hot water dont.please help if u can

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How can I fix no hot water saunier duval 620sd?

I have saunier duval 620 . I change diaparam the centralheating working ok but no hot water the pressure . motor . fan everthing ok but no hot water!

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Fixing a Saunier Duval SD 623?

I live in France but have not had any success finding an answer here. Irregularly the boiler fails to restart when the water temperature falls. This happens more and more often. The hot water from t ... more

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saunier duval boiler not working?

in response to recent answer will try and re-pressurise but have noticed water leaking from underneath boiler and have isolated at hot water feed by turning screw head on valve coupling. Also cannot h ... more

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pressure gauge zero on saunia duval combi boiler?

recently I've been getting no hot water or central heating from my saunier duval combi boiler and the pressure gauge is showing zero, does anybody know what the fault may be and how to fix it.

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hotwater low temp?

saunier duval thelia 623 water will not heat.

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What's wrong with my Saunier Duval combi boiler and how can it be fixed?

Not getting any hot water or central heating or water pressure reading from Saunier Duval combi boiler

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saunier duval?

boiler works on heating, but does not work on hot water

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fault on saunier duval boiler?

I have a Thermaclassic F30E boiler which keeps displaying F12. I was using the hot water tap, central heating was turned off and all was working fine until power got turned off. When power was retur ... more

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how can ifix?

i have a saunier duval boiler its heating is working but there is no hot water

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Valiant boiler hot water? (boiler name is saunier duval sd623)?

i have just moved into a new property and as you can imagine a little low on funds to call out a heating engineer. My heating keeps turning itself off gas is coming through as you can see it burning b ... more

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saunier duval sd623 no hot water?

after reading couple of forums, changed the diaphragm (lots of holes) in boiler. feel confident changed ok??? microswitches 2,3 still not clicking, no power in actuating switch. I can activate hot wa ... more

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how can i change water filter on saunier duval?

My central heating works but i have no hot water, this is a combi boiler and have been told that i need to change the cold water filter. Can you please tell me where to locate the filter on boiler a ... more

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Saunier Duval heating don't turn on?

hot water works fine but heating don't work, its Saunier Duval , i have tried every thing.

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no hot water but radiators hot?

My radiators are hot on commissioning but hot water is not working . When the hot water tap is turned on, the boiler does not respond.Boiler is Saunier duval 35e

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No power to Saunier Duval 30e?

My saunier duval boiler is not switching on or showing any signs of power. I have ensured the main circuit board is recieving power, the intenal fuse is ok and the switch is working correctly. I h ... more

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Hot Water Problem Saunier Duval 30e?

I have to close down hot water tap on bath to a trickle for hot water. Any faster flow results in luke warm bath. Boiler continually lights closes down and relights on about a 30 second cycle. Probl ... more

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How do I increase the pressure on a combi boiler?

I have a Saunier Duval combi boiler model SD623 and the pressure has gone right down to zero, so that there is hardly any hot water available. Is there a simple way of increasing the pressure myself, ... more

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how do I fix my saunier duval 620f?

Hi, Ive just fitted a new pump to my saunier duval boiler. Within 30 mins of it starting up, water seemed to be pouring out the base of the combi unit. It was still running, I killed the electric, swi ... more

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