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Mend Bosch 240 Combi RSF Rsf Boiler

Overheat Thermostat Tripping on Bosch 240 Combi RSF?

Hi,

The overheat thermostat keeps tripping on our combi boiler. The pilot will fire, but when central heating is turned on it will fire for about 30 seconds and then cut out, with the overheat reset button having popped. Originally the pressure was a bit low but have upped it using the filling loop to 1-1.5 bar and still get the same problem.

Any ideas? 'Cos it's cold!!

Cheers

Chris

Chris Milne
December 2010
Bosch 240 Combi RSFHeating, Home Heating SystemsBosch Rsf Boiler
Just to update on this - the system is now working with the switch to hot water only but the CH and hotwater are both on....

Chris Milne
December 2010
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