Tezza Posted May 8, 2012 Report Share Posted May 8, 2012 Hi everyone. My 1530 keeps blowing th 600 fuses when the machine is turned off. I had turned off the machine to do some maintenance when I turned it on again the 'on' switch went green but nothing else was working , no motors no computer. I called my tech as I know nothing about electrical issues. He came out ascertained problem that the fuse was bad he changed the fuse and turned it on. Expensive exercise. But it worked. The next day we had to turn the machine off again as the shopping centre did its annual RCD electrical checking in all stores, this requires me to power down everything in my store including the 1530. I turned the 1530 on switch and it the green light came on but - no motor - no computer started up. I changed the fuse and it worked again. Not thinking too much about it at the time I did the usual and turned the 1530 for for the weekend and on Monday morning the same thing happened. The green 'on' light came on but -no motor and no computer. I changed the fuse and all is working well. Why would it be blowing a fuse when the machine has been turned off. I am getting no error messages at all. I was thinking i would perhaps get a torque error but nothing. My tech said it could be anything but the investigation would probably send me broke Very confused. Please help with some ideas. Quote Link to comment Share on other sites More sharing options...
alper76 Posted May 8, 2012 Report Share Posted May 8, 2012 Hi Sounds like a bad connection somewhere....Bad earth perhaps.?? You can also check the connections on the pwoer supply which is located under the effluent tanks .. Quote Link to comment Share on other sites More sharing options...
Tezza Posted May 8, 2012 Author Report Share Posted May 8, 2012 Thanks I will check those areas. Just seems a bit weird that it seems to blow the fuse on shutdown. ??? Bad connection means loose wires perhaps or something else. ? Quote Link to comment Share on other sites More sharing options...
Beach Photo Posted May 8, 2012 Report Share Posted May 8, 2012 It is not blowing fuses on shutdown.....it is blowing fuses on startup, Blown fuses usually mean that there is a heaver load than usual on start up. Maybe your power supply is a problem and it is overloading the fuse circuit. Quote Link to comment Share on other sites More sharing options...
Tezza Posted May 9, 2012 Author Report Share Posted May 9, 2012 I'm not actually sure that it is on shut down but when I change the fuse it starts up ok. So my thought was that it blew on shutdown otherwise it would blow a fuse every time I started it up?? Is that correct? Quote Link to comment Share on other sites More sharing options...
DKHECHI MED Posted May 9, 2012 Report Share Posted May 9, 2012 YOU CAN SEE THE FUSE JUST WHEN YOU SHUT DOWN THE MINILAB (IS THE FUSE GOOD OR NOT) PURHAPS THE PROBLEM IN THE SWITCH NOT OFF IMEDIATELY (SORY FOR MY ENGLISH) Quote Link to comment Share on other sites More sharing options...
pskaro Posted May 9, 2012 Report Share Posted May 9, 2012 Which fuse F1, F2 or F3 ? Quote Link to comment Share on other sites More sharing options...
Tezza Posted May 10, 2012 Author Report Share Posted May 10, 2012 Looking at the machine from the side. (same side as the on off switch it is the on on the left. - closest to the back of the machine. Not sure which one at is. Quote Link to comment Share on other sites More sharing options...
pskaro Posted May 10, 2012 Report Share Posted May 10, 2012 This then is the: F1 = 10A protects the PC, the modified PC power supply, the 24 V power supply, and the scanner. You should try to disconnect one by one off the above mentioned parts, and check what is going on with the fuse. If this modified PC power supply was never changed I would suspect it first, you can change it for some good quality (400W, brand name), standard PC power supply Quote Link to comment Share on other sites More sharing options...
davidlam Posted May 11, 2012 Report Share Posted May 11, 2012 Will the normal fuse a SB (Slow-Blow) type and Tezza keeps on putting in a Non-SB fuse eventhough at same ampere rating ? ? ? Not sure if it is as simple as this. Quote Link to comment Share on other sites More sharing options...
pskaro Posted May 11, 2012 Report Share Posted May 11, 2012 Yes, you can try that also Quote Link to comment Share on other sites More sharing options...
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