Worcester Bosch 28si mk2

31 May 2007
Reaction score
United Kingdom
Hi there, wonder if anyone on here could help/advise me.

I've a worcester Bosch 28 si combi and on our return from holiday swithed it on but it seemed to lock out initially.

Had the red flashing warning light illuminited at both 5 flash per second and 1 flash per second.

Have depressed (reset button) as advised by the booklet but to no avail?

Leave it for an hour switched off and it will half fill a sink when swithed on 3 times out of 10.

It's very frustrating!

Just tried it and the central heating came on for 5 mins and just clicked (spark) but did not relight.

Running at 1.5 bar and water pressure is around 11.

Could this be the pcb gone again? £147 i've been quoted just for the parts alone.

Please Help!!

Regards,Tony (Crewe)
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