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boiler fires on and off

G

genduba

Joined
17 Dec 2008
Messages
9
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Location
Yorkshire
Country
United Kingdom
Hi
Having problems with my boiler - Sime format 80c combi - which was producing hot water at a low temp. Have had the thermistor and diverter replaced but now the water gets hot but the boiler cycles on and off giving hot- cold- hot water.

Do you think the new thermister is faulty or something else?

Please Please any advice!!!!!
 

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