Hi
Sorry I dont have an answer, but the same problem. My boiler is just 2 years old and perpetually gives me F37. The pressure is fine at 1.1 til I turn on a tap and it drops to .4 too low and shuts down. Did you get yours resolved OK, £500 sounds ghastly !
sue@aplaceunknown.fsnet.co.uk - like to hear from you. Many thanks and good luck.
fedupofardleigh
March 2009
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