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WHEN C/H OFF DHW HEAT C/H SYSTEM?

WHEN CENTRAL HEATING IS OFF,IE SUMMER, WHEN I TURN ON DHW THE CENTRAL HEATING SYSTEM WARMS UP AND THE DHW DOES NOT HEAT UP PROPERLY, I AM ADVISED IT IS A SENSOR BUT DON'T KNOW WHERE, BOILER LITTLE STAR LS 80T
GERRY WOODCOCK, November 2009
pay no attention to last answer its your diverter valve which is not motorised

123, November 2009
Hi gerry

sounds like motorized valve on the heatng system is letting by,may need replacing

ronnyb, November 2009