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nobody touched the setting the heating didn't come on this morning so went to start boiler said the s. 7 code boiler over run tried to start it then just does as I've said

It takes about a 2 minutes to get to 80 at around 70 it seems steady but then quickens up to 80 n cuts out it won't start up again until u turn heating off n back on or restart boiler

S. 7 goes off when the boiler starts it heats up until 80 then cuts out I've put up a picture with the model number

7 radiators the water were clear from the boiler n the filter which is on top of the boiler

Right then sorry I'm learning to use this site as well as the bloody boiler system in my house with three kids n just having an operation so.... The boiler comes on for about a minute or two on the display there is the flame a radiator a tap n the temp it will cut out as it reaches 80 the flame...

I'm trying to upload a video

It has just stopped since this morning the hot water were fine but now the boiler isn't working it won't be able to heat it up

The boiler comes on and temp rises to 70/80s then goes on rads start to warm up in this time it then goes off

??

That's all it says it tries to heat up and cuts out at 70-80 in a short time the valve still works

Yeah gravity fed not a combi the tank is in the loft, don't know what s plan or y plan means

It's a free flow system with a vaillant ecotec plus boiler (condenser) it displays an error code s. 7 which means pump over run

Yes it fires up and starts rising cuts out at around 70

Hi I've got a free flow system the heating won't come on and the boiler attempts to fire up it says code s. 7 anyone know how I can fix this please

Tank in the loft boiler downstairs not a combi

free flow system vaillant boiler is displaying a code meaning pump over run could anyone tell me how to fix it plz