Join Date: Feb 2008
Location: Chichester, West Sussex, PO20 7BU 01243 511189
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As I understand it, Automatic mode will only use fuel when the voltage drops below 12.3V, over this voltage is purely a monitoring process where no fuel will be used.
I would personally leave it operating in Automatic mode because you have the solar panel which will keep Efoy use to a minimum as it should only come on after heavy use, though I understand the points made about manual operation as this provides more control on operation whilst minimising fuel consumption.
Perhaps it would be best to try it in Automatic mode and see how you go, and if its coming on too frequently or if you know you will be driving or have EHU soon then you could just use manual at your discretion.
Chichester, West Sussex, PO20 7BU 01243 511189
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