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ligfhtening striuke and my sarV3

PostPosted: Fri Aug 20, 2010 9:22 pm
by mark H
I have two of your SA regualtors V3. One is a spare and the other was connected and all was well ( no problems for 4 months) but the boat suffered a lightning strike and the regulator ceased to function however on inspection a found the main supply 15 A fuse had blown. I changed it and all was well in that the LEDs responded normally ( green flashing every 10 secs or so)however 24 hours later the fuse has blown again. No electrical storms have occured since. I would assume that as the wiring was all ok for 4 months before the boat suffered a lightning strike, that its possible something inside the unit that has suffered? I could substitute the unit that may have problems for the unused one I have and see if this works without blowing the fuse.
regards Mark H

Re: ligfhtening striuke and my sarV3

PostPosted: Sat Aug 21, 2010 11:53 am
by Coulomb
Disconnect the field wire from the regulator and measure the current going into the B+ terminal on the regulator. It should be just a few milliamperes unless something is shorted inside. Start out with a high Amps scale. You will need a fuse in the B+ wire.

Re: ligfhtening striuke and my sarV3

PostPosted: Tue Aug 31, 2010 11:42 pm
by mark H
I did check with a 20 amp meter and it blew the fuse in that. I removed the SAR and can see that the PCB is badly burnt by the left hand top mounted device that is screwed to the heat sink whilst the PCB is burnt on one side the other looks like new. Is this repairable please? I can send the PCB to you.

Re: ligfhtening striuke and my sarV3

PostPosted: Wed Sep 01, 2010 10:40 am
by Coulomb
With obvious signs of burning, the chances of repair are not good, and with tech labor such as it is, the cost would be a lot.

We do offer discounts for replacement regulators so if you want to send it in and it's not repairable, then that is an option.