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Mend Worcester 28si Home Heating Systems

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How can I fix my Worcester 28si?

I ordered a new PCB board for my boiler, everthing fitted back of apart from the code plug does not fit the new board. My question is what does the code plug cotrol? If I order with the part number from my 28si manual will this fit my new board?

Dave Clarke
June 2010
Worcester 28siHeating, Home Heating SystemsPcb Board Boiler Apart
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Find out how to mend Worcester 28si home heating systems