Air compressor/elec...
 

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Air compressor/electrical engineer-trackworld

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Afternoon,

My beloved Jun Air compressor went pop at the weekend.  I have very little electrical understanding so excuse the post if it's an obvious solution!

The on/off switch has been playing up a bit recently (not staying on).  This weekend it started working then popped the fuse board.  Reset the fuses and then switched it on again (ignorance is bliss) and it popped it again this time with a spark from the switch.

Opened up the single phase starter unit (off the label) and the heater 19 SPH (heater overload fuse??) seems to have blown.

1, Is there a standard fuse I can replace it with.  I've looked but not been able to find one that looks like it.

2, As the switch was faulty, can I just replace this box with a new one?  Only seems to be one cable going in.

Thanks in advance!

Chris

IMG_4844IMG_4848IMG_4851IMG_4850IMG_4852IMG_4853


 
Posted : 23/10/2023 2:54 pm
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Bump for the evening crowd

Cheers


 
Posted : 23/10/2023 9:33 pm
 K
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Yes you can just replace the box with a new single phase starter box with the correct motor rating.

Wiring could do with a photo of the terminals and wires of to see how it is actually setup.


 
Posted : 24/10/2023 7:35 am
 SSS
Posts: 716
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Replace the starter with something like this.

https://www.electrotechdrives.co.uk/product/dol-starter-240v-single-phase-pre-wired-with-9-to-13-amp-overload-2-2kw-3hp/


 
Posted : 24/10/2023 9:04 am
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Thanks both, appreciate the recommendations.Will look to get a new starter and wire it in. Thanks


 
Posted : 24/10/2023 9:24 am
Posts: 92
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It may be worth first investigating why the fuse keeps blowing. The most likely reason is that the motor starting capacitor is failing, or the switch inside the motor which controls it. I'd at least carefully check the capacitor for any leaks or evidence that it has overheated. Take care, because capacitors can store a lot of energy even when the machine is disconnected from the mains.


 
Posted : 24/10/2023 9:52 am

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