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Saunier Duval Thelia 23E. Cannot relight?

Simply stopped heating water. Had a hot shower, had breakfast, but no hot washing up water. Boiler makes noises when running hot water tap but only cold comes out.
Checked and no pilot light. It will not relight.
I increased the water pressure to between 1 and 2 bar as it was a little low, but that did not help.
There is electricity because the ?pump/fan is operating. I assume there is gas. Any ideas please.

Ian
June 2009
Saunier DuvalSaunier Duval Thelia 23EHeating, Convector HeatersBoiler Heating Saunier Duval

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Saunier Duval Thelia 23E - No Hot Water