Ariston Combi

John G · 27 May 2006

The problem is this-
Run hot water, pilot light fires up, ignites the gas, then dies. Will do this 6 or 7 times before staying on.
When the heatings on, it will do the same, but stay on for a 30 seconds then die. Tries then to reignite.
Any idea? It NEVER happens when the engineers been out, but its getting worse so will have the engineer out soon.

ChrisR · 28 May 2006

Not sure if you're telling us the behaviour is the same or different depending on whether it's CH or HW.

Model would help...

Paul Barker · 28 May 2006

sounds like on dhw it doesnt prove the flame but on heatg it fails further on, so it is probably the same fault for dhw not flame proving fault.

Might it be thermister? If 'tis a model with one thermister it could be, or could be plastic temp control knobs broken and pots have got adjusted to lowest setting whatever you do (I've had this before). A hydraulic problem enough flow to trigger flow sensor but doesn't shift water away from heat ex quick 'nuff. PCB fault. If it were me I'd be stood in front of it talking to Ariston.

HarrogateGas · 28 May 2006

Sounds like the fan Venturi needs a good clean out.

Agile · 28 May 2006

I dont know why you would want to be distracted and waste money calling Ariston, Paul.

Seems a clear case of a fan/venturi/aps problem and a CORGI would remove the combustion door and see if that made it stay on to confirm.

Tony

ChrisR · 28 May 2006

remove the combustion door and see if that made it stay on to confirm.

Could be very "unfortunate" advice, depending which ariston it is.

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Ariston Combi

John G

ChrisR

Paul Barker

HarrogateGas

Agile

ChrisR

DIYnot Local

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