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Saunier Duval Thelia 23 Code 64?

Hi

Does anyone know what code 64 represents on the display of the Thelia 23 boiler, means I can start the boiler... some sort of electrical fault I am guessing?

Thanks,
Kieran

Kieran
January 2010
Saunier DuvalHeating, Home Heating SystemsCode Display Boiler

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