Is my ZIg unit charging the battery?

1999 Duetto (again). I did a 60 mile run on Sunday so the leisure battery should be fully charged but went flat after running the space heater for 10 minutes today. One battery terminal was loose, so tightened that and meter shows 13.96v across battery now when engine running, so I assume its charging from the alternator. However with the engine off and a hook up 240v lead connected the battery doesn't seem to be charging, and the green light on the Zig unit isn't lit either. The manual says there should be a 30 amp main fuse above the battery, but I can only find the 25amp fridge fuse, and an 80 amp fuse and 2 60 amp fuses. Does this suggest my Zig unit isn't charging the battery on hook up? Any suggestions welcome.

The loose terminal clamp would explain why there was only 10 minutes on the space heater! Clearly at 13.9 across the terminals, the alternator is doing what it should.

Does your Zig have the rocker switch .....habitation/engine, and  if so, have you checked that it is on "hab". It should show a similar (13.5 ish) voltage when being charged thro' the Zig.

Do you have interior lights with and without EHU ? If not, it supports the fuse theory, or a failed charge unit. Hope that's not the case !
Keith

A-S had a reputation for moving that fuse about during the course of production, so it may take a while to locate it.

However, I don't think it will help with your problem at all, because IIRC that's the one that protects the split charge feed to the leisure battery, and that side is obviously working.

If all the mains circuit breakers are on and still no power from the charger (having checked of course for a mains switch in all the typical hidden places) then it may be best to take the charger out and hook it up to the mains on the bench, or maybe check whether there is mains present at its input.

How old is the leisure battery, and what was its state of charge before you went for the 60 mile run?

On my '96 Symphony which probably has a lot of the same fittings there is a switch under the cooker for the 230v battery charger. It sits between one for the water heater and the RCD.

It might be worth a look, I have to get on my knees to see them.

Hi  
Assuming you have a Zig X7 or X70 power supply fitted it’s a standalone power supply that works independently from the leisure battery so an easy way to check that it’s working is to disconnect the leisure battery when on EHU and see if the 12V lights still work.

If they don't and you’re happy working with electrics I’d follow –mojo-s advice. If not it’s best to get an electrician to look at it.

-mojo- wrote:If all the mains circuit breakers are on and still no power from the charger (having checked of course for a mains switch in all the typical hidden places) then it may be best to take the charger out and hook it up to the mains on the bench, or maybe check whether there is mains present at its input.

edmason wrote:the green light on the Zig unit isn't lit either.

You don’t say if you’re talking about the Zig power supply or the control panel. It is possible for the green light on the power supply itself to be off and the unit still working (it happened on mine – now fixed).

There are two ways that the green indicator on the control panel may work.  On mine it purely indicates that there is mains going to the power supply, so if its off it indicates a mains fault (or a duff lamp).

There is an output for an LED indicator on the power supply unit and from reading some other posts it’s used on some vans. The connector is on the bottom left of the unit and marked “LED”(picture below). If the is no connection to this pin the control panel light can’t indicate that the Zig is actually “on” (or off).



Brod