Have done some searching on here and not found an answer so hoping someone will know.
I know the FBH will come on in low temps and if water doesnt reach working temp in a set journey it will stay on the full journey and will run down when ignition turned off. But, even on a long journey where the water gets to temperature be it 20 miles or 50 miles the FBH stays running for the whole journey??? This is obviously costing me in fuel efficiancy and money of which im sure shouldnt be the case. Anyone any thoughts on this?
I know the FBH will come on in low temps and if water doesnt reach working temp in a set journey it will stay on the full journey and will run down when ignition turned off. But, even on a long journey where the water gets to temperature be it 20 miles or 50 miles the FBH stays running for the whole journey??? This is obviously costing me in fuel efficiancy and money of which im sure shouldnt be the case. Anyone any thoughts on this?