Question about Magnum Air 2 HP 5 Gallon Twin Tank Air Compressor

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I need a pressure regulator fo a AC0205TT/03902 compressor

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Pressure regulators are somewhat universal and can be replaced based on the pipe fitting size and or the pressure cut-out if you are talking about the pressure switch. No need to use factory parts. In many cases, the generic part will cost much less. To get an idea about sizes and prices, search ebay for regulator that looks like may fit and handle the pressure and volume needed. Lowes sells a line of pressure regulators that may work.

Posted on Dec 02, 2012


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1 Answer

My makita model 5200 air compressor regulator will not adjust pressure--replaced with a new one-- no!!

you would need a separate regulator to regulate outgoing pressure and you have only an on/off reguastor.

Oct 14, 2014 | Air Tools & Compressors

1 Answer

My kobalt air compressor model#215914 won't stop running is it suppose's do that?

All compressors run up to their rated high pressure level, usually listed on the data plate on the compressor or in the manual, then the pressure regulator turns them off. If your compressor is not shutting off it is either not getting to the pressure it takes to get the pressure regulator to turn it off or the pressure regulator is broke and won't turn the motor off. To check which, turn the compressor on and watch the guage that shows tank pressure. If the pressure rises then stops at a level below the rated pressure for your compressor and the motor continues to run, you have a leak somewhere. It could be the tank drain valve, the lines from the pump to the tank, the valve plate or in the piston cylinder area. If the pressure rises more than ten psi above the rating for your tank, your pressure regulator is broke or possibly set too high. If you know how, you can try lowering the shutoff point to see if that fixes it but you're usually better off replacing the regulator.

May 09, 2012 | Air Tools & Compressors

1 Answer

The regulator is not getting pressure and will not allow me to actually use the compressor. the tank pressurizes but is unable to expel in a useful measure. it can hold pressure, and be purged but nothing...

Hi jonuschak...
Your problem sounds like it is the pressure regulator faulty.
Try to adjust the air pressure regulator up and down in pressure by turning the knob one way and then the other. Sometimes this will free up a stuck regulator.
You can also tap the sides and bottom of the air regulator with a hammer and it will help get the air going again, that is because sometimes the needle of the regulator sticks and will not allow the regulator to regulate the air pressure. If that does not work then you will do the following
Remove and repair if possible the pressure regulator. If it cannot be repaired then it is faulty and not allowing the air flow need to do your job.
Please take time to rate me

Aug 31, 2011 | Porter Cable C2002 150 Psi 6 Gal...

1 Answer

Will not allow me to regulate air. compressor kicks on and builds to max pressure.

All air compressors build pressure in the tank(s) to their maximum allowed by the pressure switch. The regulator only controls the pressure of the air available at the outlet. That's why they have two pressure guages, one for tank pressure and one for outlet pressure. If you cannot control the air pressure at the outlet then you have a defective/broken regulator. Dewalt does not make the regulator as a seperate part for their air compressors, you have to buy the entire manifold which includes a regulator to fix this problem.

Jan 31, 2011 | Dewalt 2 Hp 4 GAL Air Compressor

2 Answers

It's a Model C3151 3.5 hp peak with 1.6 hp running. The problem I have is the compressor will turn on and run but will not regulate. I assume this is due to a faulty regulator but i'm not certain if it...

A compressor don't regulate ??? If it comes on it should stop when the desired pressure is acquired inside the tank , This pressure is regulated by the setting of the pressure (switch) Compressor comes on at a set pressure and turns off at a set pressure this is regulated by the pressure switch,.. AND is limited by the size or capiticy of the motor and compressor you have , A regulator is set out side of the compressor to maintain the pressure you want at the end on you hose to do run different tools.

Sep 28, 2017 | Porter Cable Cable 4.5 Gallons 150PSI Job...

1 Answer

Where can I find a replacement part? The aluminum female threaded inlet attached to the underside of the on/off switch has been split out trying to remove a broken air chuck. Thanks for any assistance.

Manual is here:

Note, not all parts are available for direct OEM replacement. Sounds like the Regulator or Valve that you are describing. Call the Manufacturer distributor for more info: Homier 800-348-5004

Otherwise most of those parts are interchangeable. Stop by your local hardware store.

Jan 07, 2011 | Magnum Air 2 HP 5 Gallon Twin Tank Air...

1 Answer

I have an older Craftsman Air Compressor and the knob valve to reg the pressure seems to not be working. Can I replace it?

It is getting increasingly more difficult to obtain replacement parts for older compressors. If your regulator failed at a fairly high pressure adjustment, say around 100-120 lbs, you could just leave the old regulator in place and add a regulator when needed to one of the quick connects. Purchase a generic pressure regulator from Lowes and add quick fittings to easily connect the regulator or remove when not needed. You could also just remove the old regulator and work-in a new generic regulator in its place. Generic regulators sell for $20 - $40. Good luck with your repair.

Aug 06, 2010 | Craftsman Air Tools & Compressors

1 Answer

Inconsistent pressure

As a first check, There should be 2 gauges and a pressure switch with histeresis.
You need to set the tank pressure switch above the regulated output pressure.
The tank pressure will fluctuate between the upper limit and lower limit set in the compressor switch.
The outlet regulated pressure should be below the lower of the switch settings or you will get a varied outlet pressure.
Try setting the tank pressure lower limit higher on the switch - above the outlet pressure required.
Always stay within the tank maximum rating.

If things are nor working properly, it may be the outlet regulator (make sure it is emptied of condensate daily) or a fault with the compressor switch if the tank pressure drops too low before starting.

If the compressor is on more often than usual, then it may need service or repair to worn parts. This is particularly true for vane compressors.

Aug 21, 2009 | Air Tools & Compressors

1 Answer

Air compressor pressure not regulating

Usually you cannot adjust the cut out pressure of the tank/motor itself, this is why they have regulators, which regulates the pressure flowing down the air lines (regulators like these dont regulate actual tank pressure cutout). To regulate air flow using the regulator knob, you actually have to have air flowing through the hose while you make the regulator/pressure adjustments as regulators regulate pressure DOWNSTREAM from the actual regulator itself.. so air flowing through is a must. Attach an air blower or something similar and let air start flowing through the hose. Now turn your regulator knob in the "-" direction to decrease regulated pressure. It is best to bring pressure all the way down to "0" first, then open the regulator up (by turning to the "+" side) and pressure will rise until you get to the desired pressure needed for the air tool in use. The tank pressure will still be between 80-125 PSI as the motor regulates and keeps the pressure in the tank between these values automatically, but your line/hose air flow pressure will remain at the regulated pressure (say 40 PSI or whatever you set using the regulator knob).

Hope that helps and makes sense.

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Jun 18, 2009 | Makita Factory-Reconditioned 2.5 HP Air...

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