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Mend Saunier Duval Thelia 23e Combi Boiler Hot Water

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.

Ben
April 2012
Saunier DuvalSaunier Duval Thelia 23eHeating, Home Heating SystemsSaunier Duval Combi Boiler Hot Water
faulty thermostat control shut off

freddy
June 2012

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Saunier Duval Thelia 23e Boiler - No Heating