Subaru Air Tools & Compressors - Page 8 - Popular Questions, Answers, Tips & Manuals

If you're certain your battery is good, the problem will either be the battery contact (Depending on the model this can be part of a circuit assembly) or it is the ESU. Check all the plug in connections to make sure they haven't come loose as well.

Sounds like a lubrication issue or bad bearings. https://www.google.com/search?q=devilbiss+4029+pump+compressor ..

If you run the compressor with the gauges removed, does air come out of that port? If yes, does the compressor build up enough pressure when the gauges are attached to give you enough air pressure at the end of the hose? If yes, then the gauges are bad. If you are not getting enough air pressure to do any work, then there is still a problem with the compressor. Check the unloader valve (release valve) on the pressure switch to make sure it's not leaking when the compressor is running.

Try here, but it looks like the unit is obsolete https://www.toolpartsdirect.com/compressor/compressor-tank.html?__cf_chl_captcha_tk__=68e627a00aaf3e4206e1c000639cd6d04db944b9-1614471819-0-AePEldBy_P7vQCc0dw3t3lVYTxXZ5kxpKLCoYhWa45l3yxUpcecG4DRzPl8IlmQD5Iy4DknzrHzQApTZb42x8rWkqY8gzCN-JuPXHNsXBk5_vzI1_NfkBX2TRiFnGIatJGA8Q8sijys36ykY-hLB8PJmWnbnvuiDcQVG_VBigvjsa7JpSa65GzTPAoSvWFJyjgM6H2-rIzo2flj0uowFvI4QO8IgvAYIcMwS0Oo9HjKHteiqMTQ1YcC2VUu3BlHOLFNvw96Kzz7H2niX7IwzTsb0nRX55UEg470EgvfRI7SsJ6dlE1KNsxQJcz9nWrB3FjTBm_aneMbqi_P1Ux1KELeSdTuQD-7LFp3lmAlaFCG8M_-zxvRnExtfrrtX-nj9Q9EQlTNoSGIscxYAIt4GvUyem8Ful21acHKZvWezdgViqmZUwKGBrbQInO7wMCbt2qNSE9RjKWETjkQx8Hy-jxao8QTyEgErdsymbNmSJi-irYgkzCTxh6BqeKpT8Xxn7QZwysKnsGQK48OsBRBqs67tlivRPRK0uY5R0yGhLPWttzpW3H1VKLS7miwDqUPhTSaHPqV4kVZsqSaXY6yjWXlG0Zun176k4yL0ilDX_MJCHqWN4hY5ogjyS2kofKGS-Q https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk03LDjqqRfJfN8traDGrULENq6R8Qw:1614471808473&q=%22WelBilt%22+2.5+gal+air+Pancake+air+compressor+replacement+parts ..

Contact Harbor Freight to inquire.

The compressor will usually only shut off if the motor overheats or the maximum working pressure is reached. If pressure isn't building it probably never will shut off. If pressure isn't building, either the compressor isn't pumping or air is leaking somewhere. It is fitted with an oil lubricated cast iron twin cylinder compressor that is typically a very reliable and long-lived unit and it would be very unfortunate indeed if it gave you trouble. If it sounds normal and has strong suction through the intake the large cylinder is probably ok. This can be verified by disconnecting the receiver supply pipe from the second cylinder and estimating the pressure produced.

The problem is most likely a bad battery, or bent / bad battery contacts - (depending on the model, these can be part of a circuit board). It can also be the ECU, but not likely

take old o ring to any home depot or hardware store and get the same size

It should take 2 minutes to go from 0 psi to 100 psi If it is taking longer, there may a leak in the discharge line between the pump and the tank, or the unloader tubing. There could be a problem with the valves, piston rings.

Sounds like you have the wrong trigger, or the trigger safety lever is on the wrong side of the pushing lever.

If you can't find a manual and the manufacturer or dealer can't help, you might find the information in an oil supplier's application catalogue.

Contact the maker for a warranty claim https://www.amazon.ca/As-Seen-TV-4545748787878-Compressor/dp/B06XDW4ZXL Ontel Manufacturer contact FAIRFIELD, NJ, 07004 US

what is it we ask??? ahh an air compressor..sounds like a pressure switch problem. heres a parts link https://aircompressorpartsonline.com/portable-oilfree-air-compressor-parts-clc631110-vlc631110-p-747245.html

The most common issue with this tool is the trigger firing mechanism (Part TVA12) Unfortunately, this part is obsolete, you may be able to find one on Ebay or a Google search.

Inquire at Harbor Freight.

Check for a faulty capacitor and earth leakage.

Contact Power Pal directly to inquire.

You can try drops of transmission fluid in the air inlet, it is high detergent content and lubricant

dump the air and replace the valve

Take it back for a proper service that you paid for.