I've got a L20 and after a few months installed, it had a CPU storm.
Volts now works OK but any of the amps functions are a shambles.
Tried resetting, have yet to ground sense circuitry which will be next
step. Shame really as the ammeter was really useful in bowling out
what was using the amps.

Gerald,
1) Not resetting to zero ... sounds to me like either the charger's
ground lead is connected direct to the batteries bypassing the shunt,
or a ground lead is running from the starter battery ground to the
starter or engine block. The ground legs of your battery must have
absolutly nothing connected to them except for the shunt. No
exceptions. It's hard to not have an exception. Heavy wires from
chargers, inverters, etc. may be inconvient to route to the shunt, and
misc. devices that are connected direct to the battery as part of the
boats wiring harness, like your bilge pump, need to have their ground
wire rerouted to the shunt.

2) Dead except for green bars ... I had the same problem last month,
disconnecting and reconnecting the link 20 power lead at the battery
cleared the problem for me.

Dan (b393capt)

"Dan Corcoran" wrote in message
...


2) Dead except for green bars ... I had the same problem last month,
disconnecting and reconnecting the link 20 power lead at the battery
cleared the problem for me.


We can gnaw the green out with our teeth and glue a diamond in it's place.

mk5000

"Down that memory lane, I know
So I guess that green light means I go
Through the fire thinking bout all the flames I know
Yeah, but you know "--I loveyou, Solange Knowles

Gerald,
1) Not resetting to zero ... sounds to me like either the charger's
ground lead is connected direct to the batteries bypassing the shunt,
or a ground lead is running from the starter battery ground to the
starter or engine block. The ground legs of your battery must have
absolutly nothing connected to them except for the shunt. No
exceptions. It's hard to not have an exception. Heavy wires from
chargers, inverters, etc. may be inconvient to route to the shunt, and
misc. devices that are connected direct to the battery as part of the
boats wiring harness, like your bilge pump, need to have their ground
wire rerouted to the shunt.

2) Dead except for green bars ... I had the same problem last month,
disconnecting and reconnecting the link 20 power lead at the battery
cleared the problem for me.

Dan (b393capt)

On Nov 30, 11:25*pm, b393capt wrote:
Gerald,
1) Not resetting to zero ... sounds to me like either the charger's
ground lead is connected direct to the batteries bypassing the shunt,
or a ground lead is running from the starter battery ground to the
starter or engine block. The ground legs of your battery must have
absolutly nothing connected to them except for the shunt. No
exceptions. It's hard to not have an exception. Heavy wires from
chargers, inverters, etc. may be inconvient to route to the shunt, and
misc. devices that are connected direct to the battery as part of the
boats wiring harness, like your bilge pump, need to have their ground
wire rerouted to the shunt.

2) Dead except for green bars ... I had the same problem last month,
disconnecting and reconnecting the link 20 power lead at the battery
cleared the problem for me.

Dan (b393capt)

If that does not work, also disconnected the Link 20 battery voltage
sense leads at the same time.