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Mend Raven Heat 120 Combi Boiler Temperature Fault Code

Dhw temp varies raven heat 120 combi?

Water temp varies and sometimes shuts down showing 04 fault code. More noticeable when running a bath. Changed overheat stat. Any ideas please?

Ged
January 2013
Raven HeatRaven Heat 120 CombiHeating, Home Heating SystemsBoiler Temperature Fault Code
Change hot water NTC which controls hot water temp

ltd
January 2013

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Raven Heat 120 Combi - Hot Water & 04 Fault