CP 67708 pops reset button within seconds

by Thomas
(Center Point WV)

CP 67708 brand new - plugging in for initial 30 minute run and the reset button pops in ten seconds or less from when I turn on the unit. No pressure is built up, nothing just pop.

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Thomas, as a comment here, please tell me about your power supply to the compressor; whether it is a power bar, an extension cord, about the other items pulling power on the same circuit you have the compressor plugged into, if any.

Thanks,

Bill

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My Central Pneumatic compressor won't recycle all the way to 90 PSI?

by rick
(Bolingbrook,il)

my compressor won't recycle all the way to 90psi, it stops at around 40 or 50 pounds

it's a 2.5 HP, 10gal. I have to keep resetting the breaker on the motor, then it will run for 10 seconds and shut off again.
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Rick, if you are saying that the motor is shutting down on thermal overload, and if you wait some time for the compressor motor to cool, and the compressor will start briefly, then something is causing your compressor motor to overheat.

One typical problem with small air compressors is that people use a small gauge extension cord to run them. If your compressor is being powered by an extension cord or a power bar, instead, plug it into a clean wall socket with nothing else pulling power from it, and see if that makes a difference.

What's the age of your compressor? Has it had a lot of use? Any other unusual running aspects that you have notices. Comment here with responses if you wish.

Bill

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Central Pneumatic #67847 reset trip

by Angel
(PA)

I have a Central Pneumatic air compressor model# 67847 plugged into a dedicated outlet.

Attempting to do the initial break in, and the reset button trips after 10-15 seconds.

Have attempted several different outlets with no success.

I am not running an extension cord.
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Angel, good that you are not running an extension cord.

Your compressor has a 2.5 HP motor I believe and, according to their website is a single capacitor motor with thermal overload protection.

It is the overload of the motor that is causing the thermal overload protector to trip.

You need about 4 amps per HP of motor size for the motor to run.

I am curious as to the amperage of the fuse or breaker you have for the socket into which the compressor is plugged?

Bill

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Where is oil going?

by John
(Katy, TX)

I have an electric, 8 gallon central pnumatic air compressor that I use in the garage for cleaning, some tools and blowing things up (pool toys, tiers ect). I was blowing out the garage the other day and it just stopped. I went to check on it and the oil was gone. I let it cool off and filled it with oil. Turned it on and all SEEMED ok. I did not use it that day. Two weeks later I go to fill up the tiers on the family van and look at the oil level and it's empty again. I guess it's going in the tank - don't want to check and get oil everywhere. Thinking about just tossing it out and getting a new one. Is it repairable or is it not worth the time or trouble?
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If the oil isn't on the floor under the compressor, John, then yes, it's likely in the tank.

That suggests you have badly worn piston seals, and the oil is blowing by the seals when the compressor is running, and then betting driven into the tank along with the compressed air.

If you are into pain and suffering (:-0) then tear the compressor down to see if you can spot the problem.

Or, if your time is worth more than you want to spend on what is likely a relatively low cost compressor, probably easier to buy a new one.

See my video on my $10 air compressor (video page) for tips and what to do with the old one.

Cheers,

Bill

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