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how can i fix my 30cdi boiler?

My worceser bosch 30cdi conventional condensing boiler is continually in the air purge(flashing flow temp then two 0's) mode even though there is no air in the system, can anyone tell me why, thankyou

neil parrott
October 2007

Bosch Heating, Home Heating Systems Boiler Conventional Condensing

now mine is doing the same! - what was your fix mike? Mine is flashing 18 and then the oO display - did you get a fix?

npo
October 2007

No, but I've got exactly the same problem with mine. My plumber is coming tomorrow (Sun 7th Oct) so if I find out what is wrong then i'll email you back.

Mike Kitcher
October 2007

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