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Mass Combi 2000/12 problem
HELP……Mass Combi 2000/12-100 ALL LEDs showing, no output or operation
Monday,16 October, 2017
12:44 am
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Monday,16 October, 2017
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Looking for some advice on problem with our Mastervolt Mass Combi 2000/12-100.

Returned to the boat Friday eve after 7 weeks to find batteries completley dead, the shore power was  disconnected while away.
So plugged in shore power and left to charge the batteries without issues.
On sunday eve after returning from restaurant the mass combi was not outputting and all the LEDs where on on both the main unit and remote panel.
No amount of restarts, ditching power to both batteries and mains and restarting made any diffetence.

Sequence is:
Switch to on
Fan starts
Individual load and charge leds sequence
Mains power outputs breifly the combi shows all leds steady illuminated and unit stops outputting and fan stops but LEDs remain illuminated.

I have checked boat 240v wireing and combi 12v supply all are fine.
Also checked the combi thermal trip and external fuses.
I have confirmed there is 240v at AC in and 12v at the combi’s  battery terminals.

Any advice very much appreciated

Monday,16 October, 2017
10:43 am
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Continuous Cruiser
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Thursday,12 January, 2012
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Chargers don’t like really flat batteries. What happens if you start your engine, does it start to accept a charge then? In the workshop we would have connected a charged battery in parallel with the flat one then recharge. 

Living retirement in the slow lane.

20 years hiring, 6 years of shared ownership and a Continuous Cruiser since 2007 but still learning!

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