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Bat Volt Disconnect - error, but it's ok - not charging

PostPosted: Wed Jan 06, 2010 1:09 am
by LeighM
Hi, I am getting a Bat.Volt Disconnect error (3on 1off). I have just replaced my Batteries and this has only happened since. But the volts to at Volt indicator are correct and batteries will not charge.

I have run diagnotis according to you troubleshooting guide - as follows

1 House 12.76 12.75 12.75
2 Parallel 0 0 0 NOT USED
3 On/Offf 0 11.5 11 49
4 Ground 0 0 0
5 B+ 12.8 12.74 12.58
6 Field 0.03 0.01 0.02
7 Alt Gnd 0 0 0
8 Lock - - - NOT USED
9 Bat Volts 12.76 12.74 12.65
10 T- 0 0 0
11 T+ 0 2.96 2.96
12 ABS - - - NOT USED
13 Lamp - - -

As can see Bat Volts are reading. But what is not right is Field.

I bypassed the Field direct to Battery ++ and the alternator is charging fine.

All fuses are ok.

No difference when i disconnect the T+ .

Please advise what is the problem and resolution.

Thanks in advance for you assistance.

Re: Bat Volt Disconnect - error, but it's ok - not charging

PostPosted: Wed Jan 06, 2010 3:50 pm
by Coulomb
If the connection at the regulator is OK, then it must be an internal fault.

It would have to come back here to determine that.

Re: Bat Volt Disconnect - error, but it's ok - not charging

PostPosted: Thu Jan 07, 2010 4:05 am
by LeighM
ok, thanks, I feared that!

Please advise who is your service agent in Auckland, New Zealand.

Thanks

Re: Bat Volt Disconnect - error, but it's ok - not charging

PostPosted: Fri Jan 08, 2010 3:54 pm
by ruth
We have a dealer in Auckland New Zealand, BEP Marine. However, they may not be able to test the regulator you have.

Re: Bat Volt Disconnect - error, but it's ok - not charging

PostPosted: Wed Apr 20, 2011 12:37 pm
by bjorn
Hi,
I had the same problem. Bat voltage was OK at the terminals. There is no support in Sweden anymore so I checked the first filter inductanse L3 (looks like a resistor) close to the Bat Violt terminal. You can do a resistance measurment trough that L3 component and find out if it is broken or not. You shall read max 3-10 ohm. One way to test it is to short circuit this component. Or replace, a new inductance (1mH) is 1-2 US$.

Björn

Re: Bat Volt Disconnect - error, but it's ok - not charging

PostPosted: Thu Apr 21, 2011 10:44 am
by Coulomb
L3 gets blown open with a high voltage transient. See this URL if you have a 1-2-both switch: http://www.amplepower.com/apps/burnt_sw/index.html

The original part is 1000 uH at 14-28 Ohms.