Audible alarm from module Transformer/rectifier

[Cruse]

Hello

A question for any auto electricians out there.
I am getting an alarm from the battery charger when running the engine of my van. The Charger model is Nordelettrinica NE237. The associated display panel is not showing any alarm codes, but the parallel battery 'active' warning light is showing The alarm is coming out of the actual transformer unit not the control panel.

I have run through the diagnostics on the control panel, switching off habitat and cab batteries in turn, (or together) does not stop the alarm or the parallel battery warning light

Any suggestions?

 

[GeoffnDee]

If you have no luck on here with the answer you could try ringing Apujack engineering 01278 588922 who repair these units and may know , they are normally very helpful.

 

[Cruse]

Thankyou GeoffnDee. I been in contact with our local dealer, the battery parallel indication may be a red herring. They think its an accessory microswitch so I'm still looking.