Question about Air Tools & Compressors

1 Answer

Mastercraft compressor - one pancake type tank ... need pressure

Mastercraft compressor - one pancake type tank .... need pressure control switch

Posted by on

  • Anonymous Mar 13, 2014

    mastercraft compressor not filling



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,388 Answers

You do not need to use factory replacement switch. Mos t universal pressure switches are set to shut off at 120-130 psi. You will need to check the placement of the unloader valve (1/4 line from check valve) and the quantity of ports as some switches have only one port and others have 3-4. Check ebay for good match and low price. Good Luck

Posted on Aug 01, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My pancake air compressor will not build up any pressure

first control non return check valve on the tank second the hose connections and pressure line tirth cilinder membrane or piston ring worn if an oilless compressor Usually under pressure control a pressure reliever which must be forced out of pressure, it may be that the pressure gauge does not close off

Jul 14, 2017 | Air Tools & Compressors

1 Answer

Unit has developed a continuous leak

need to replace pressure switch as the leak is a worn needle valve assembly. it usually unloads from there when the machine stops

Sep 06, 2012 | Clarke Power Products Inc AC2001 2HP 4...

2 Answers


most likely the regulator is shoot. But also try checking for leaks with dish soap and water in a spray bottle.

Mar 06, 2011 | Clarke Power Products Inc AC2001 2HP 4...

1 Answer

Air leaking from air pressure controller when compressor knocks off

It is normal for there to be a hiss from the pressure switch for a second when the unit stops, this allow any pressure in the line to be dissipated so next time the unit starts it doesn't have a pressure to start against. If it is constantly leaking it will be a problem with the non return valve. It is normally a brass fitting on the tank that the compressor pipe goes to. It may just have a bit of debris not allowing it to close properly, You need to drain down all air and remove the cap on the brass fitting, there should be a rubber shuttle with a spring behind, if it is hard an cracked it will need replacing or it may just need a clean.

Hope this helps,


Feb 05, 2011 | Clarke Power Products Inc AC2001 2HP 4...

1 Answer

My dad bought a used 2HP 4 gallon clarke pancake type air compressor at an auction. It keeps blowing capacitors. Does it have a centrifical switch to take the cap out of the cct once started?

hi there!
some motor compressor are equipted of centrifugal switch connected at the shatfting of the motor compressor after turning at rated speed this will be open and disconnecting your starting circuit as well as the starting capacitor.
have anice day fix my rate, thank you

May 07, 2010 | Clarke Power Products Inc AC2001 2HP 4...

1 Answer

Portable oiless compressor wont pressurize

If there is pressure at the pump, either:

1) The tank check valve isn't opening (it's located where the line from the head enters the tank - usually extends into the tank, and the the pressure switch unloader line comes off of it as well)
2) The pressure switch unloader is bleeding off the air. This is a small valve on the side of the pressure switch. It should close when the compressor is running and open when the compressor shuts off to bleed off head pressure.

Oct 19, 2009 | Campbell Hausfeld No.FP2028 Gal Pancake...

1 Answer

Will not pressure up even though it runs and runs and runs

Check for leaks of course... THEN check the check valve AND the Compression Relief valve which is OFTEN cintained in teh pressure switch. This valve bleeds the compression left in the head so the thing can restart without a pressure load. This is a small pintle that closes when the pressure switch starts the compressor. The check valve is the other thing and it is often a part of either the head or the pressure line to the tank at the tank.

Aug 17, 2009 | Porter Cable C2002 Oil Free Umc Pancake...

1 Answer

Oil covering pancake and pressure adjustments

Typically on the inside cover of the electical box it will illustrate the cut-in/cut-out controls. There should also be a fill port above the pump end of the compressor. Do you have a sight glass on the side of the compressor *(around the area of the leaking oil) usually if its coming out its due to overfilling or tipping over of the compressor.

Feb 02, 2009 | Clarke Power Products Inc AC2001 2HP 4...

Not finding what you are looking for?
Air Tools & Compressors Logo

Related Topics:

369 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1388 Answers


Level 3 Expert

2528 Answers

Brad Brown

Level 3 Expert

17431 Answers

Are you an Air Tool and Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides