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Mend Heatline 14 ltr waterheater Fault Coming Going

Heatline 14 ltr waterheater?

The fault coming up is f4.I can reset the waterheater
and it will fire sometimes but keeps going back to the faulf f4.Can anyone help please.The waterheater is only 18 months old.

Andrew
February 2010
HeatlineHeatline 14 ltr waterheaterHeating, Home Heating SystemsFault Coming Going

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Heatline 14L Water Heater - F4 Fault Help