air compressor keeps blowing fuse

[hp006]

I brought an air compressor from a scrap yard. He said it fully works and if there was any problems i could return it to him.

 

My problem is when i plug it in it starts for half a sec then blows the fuse. I am not using an extension lead or anything other than going straight to the mains.

 

Its a HPC SH12 SR 125l jobby. Anyone got any ideas as to why its doing this.

 

I have made sure the pressure switch is off for 10 secs as stated on the machine. Then i push the green button flick the pressure switch power for half sec then fuse blown.

 

any ideas

[Josh]

Take it back to him

[evinX]

Need a bigger fuse type? some wires keep touching somewhere? could be an eazy fix but put it aside for the time mate, ITS CHRISTMAS TOMORROW!!!!!!!!!!!!!!!!!!

[Morpheus]

Must be an old model or a typo' as it returns no matches on their website search or any engine, except your post.

 

Seized piston/s? Does the motor even spin? Also, check the air vent/s in the cylinder head/s for dust caps and decent filters, though they won't stop it from rotating if it's blocked, just takes ages to fill.

 

Perhaps you need it to blow up the inflatable Reindeer?

 

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[Ricky49]

Maybe it has the wrong size fuse in it. What amp fuse is in.

 

What's the current rating of the compressor.

[jagman]

You might need a "slow blow" fuse , the motor draws large current during start and reduces as its running ,still use a 13 amp- but slow blow fuses can take 3 times this for a short period of time (enough to get the motor up to speed)

Some motors also use a start capacitor and yours may be knackered

[Paul]

As above, if it's cap start then the capacitor might be shot.

[Bailey.]

Frozen?

[merckx]

Lack of use will make it difficult to turn over as the pistons in the compressor will stick/seize to some degree.

 

I hadn't used my compressor for a month or so, together with that and the cold I couldn't get it to start without blowing fuses.

 

I turn the motor over on mine by hand (make sure it's unplugged) until it moves much more freely and because of the extreme cold recently I warmed up the compressor with a hot air gun, It then started up no bother .

[hp006]

I put the compressor on a normal 3 pin plug, after blowing 2 fuses i thought i would try a 16 amp blue plug, stilly tripped the rcd power to the garage. When i took the switch off there are options for current cut out and this is set to 14 amps so that must be ok.

 

I was wondering its the rights size thank i want, can i take the motor off and put a motor from this on to it

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=180599126763&ssPageName=STRK:MEWAX:IT

 

Looks like i can wire in the air line only other issue is if i can wire the pressure switch on.

 

Whats peoples thoughts? I will try and gets pics of the old one on here. Just want a larger tank to do some spraying

[merckx]

Like I said before the compressor pump (pistons) are likely to have seized if it's been standing.

 

Obviously the compressor itself is driven my a motor, see if you can disconnect the drive from the motor to the compressor and get the motor to run by itself. Try turning the compressor over by hand.

[tomgeer]

Frozen?

 

That would be my guess too mate, ours at work keep playing up lately.