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Mend Worcester 28i Junior Boiler Sensor Central Heating

got hot water but no c/h?

iv hot water but no heatting installed new pcb board and dhw sencer and ch sencer still the same it will fire up 5 sec latter it sparks to ignight then shuts down this is a worcester 28i junior standerd efficecy

Graham
January 2015
divertor valve?

Q
February 2015

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