Craftsman 1 hp Air Compressor, 4 gal. - 16638 - Answered Questions & Fixed issues

If it's new I would return it. However that model number 16638 is for a Huffy Bicycle.

check air tank drain valve located on bottom of tank, if it is not leaking try adjusting air pres regulator (large black knob close to air hose connection.) the knob when turned in will increase the tank air pressure, if knob wont turn check that lock ring on bottom of knob to make sure it is disengaged. also check for air leaks in all lines and connections

Sounds to me like the setting on the compressor are set to high, there may be an adjustment on the pressure switch to set it at a lower restart pressure.

Well if the device only gets to 20 psi.I would wonder if perhaps the inlet pressure valve/sensor wasn't faulty or stuck? Or maybe you have a "Leak" somewhere? either in the connection between the pump and reservoir, or even perhaps the reservoir is leaking. if you suspect leakage, use soap bubbles, to check, lather them around suspected connections etc, and see if there are any leaks?
Basically we have a reservoir a pump, and an air inlet, and a pressure sensor, that cuts off, when a certain pressure has been reached, if it isn't working, then we simply have to find out why? if the motor is working, then it is pumping, the air should be being forced into the reservoir through a one way valve, that "Cuts off" at a certain pressure.
So when we troubleshoot, we simply need to check each part as it were, and by the process of elimination isolate the bad component and replace it.

1) Check that it is not already at full pressure
2) Check that you have power coming in to the switch (20 year old power cord)
3) Bypass the switch and, briefly, plug it in.
4) Look for a fuse or breaker.
5) With the motor leads disconnected from the switch, check that you have resistance across the motor (0 ohms would be bad).

If you are not comfortable doing any part of this, don't. Check with friends & neighbors for a reputable local appliance repair company.

you may have a seal in the head that is blown out or a diaphragm problems start by taking the head off and inspecting their

Check for a leak between you compressor head (pump) and your tank. Your pump output may be good but as your tank pressure gets higher the leak will not allow the tank to build up.

Very hot air is an indication of leaking /broken head gasket or reed valve. Before you remove any parts, with compressor running, check all fittings for leaks with soapy water. If no leaks, remove head and examine parts. If reed valve is broken replace as needed or do creative repair. Some valve plates have multiple reeds and only one reed is broken. Depending on your skill level, you can thread the hole and seal with piece of bolt (finished repair must not be any thicker than the plate). Good luck

Question edited for clarity. Question moved from Misc to correct category. By 'stride wire', do you mean just short across the switch? Yes you can but really you need to fix the problem. You know these things can blow up and spray shrapnel 30 feet? Google Craftsman (model) parts You may have a short in the motor, in which case, shorting it out won't fix it. https://www.google.com/search?q=Craftsman+Air+Compressor.+I+have+to+press+the+reset+button+on+it

regulator is bad, or tank is not low pressure. you could return it for another one.

capacitor weak --motor drawing to many amps if using extension cord[s] not correct or to far from source and causing to much voltage drop -motor faling--compressor failing

question moved from Television and Video category. It is a well documented issue. https://fix-my-compressor.com/33-gal-craftsman-compressor-keeps-tripping-the-breaker/ Lots more here https://www.google.com/search?q=33+Gallon+Craftsman+compressor+it+runs+for+about+20-30+seconds+and+trips+breaker ..

https://www.searspartsdirect.com/model/2isi08jj41-000247/craftsman-106153781-air-compressor-parts https://aircompressorpartsonline.com/twin-cylinder-tank-type-paint-sprayer-106152781-p-721585.html https://mastertoolrepair.com/portable-singlestage-oilbath-electric-air-compressor-parts-106152581-p-49836.html

That model number only shows in this post. I don't see how a compressor can be 'oil-less', the friction and pressure is enormous! https://www.google.com/search?q=6.5+HP+oil-less+60-GAL+MOTOR+%22K56A28B23%22 ..

is the plunger sticking below the housing . if so push it back in with a screw driver

Craftsman Electric Stapler Model #193.684231 aka 9-68423. (Came out in 1984) Can take up to 5 different size staples depending on your project. One feature is the "dual power" knob at the top which allows you to use "HI" or "Low" impact depending on the size staple used. Sorry about the blurry pictures, they are sharp on my computer. Try Googling the model number or looking on EBay. "No. 6" means "Heavy Duty Wide Crown .417 size."

https://manualzz.com/doc/50653102/craftsman-15362-owners-manual

I have 351.181720 and the driver does not return. I've had this for years but it has not seen extremely hard use (probably less than 500 brads). Suggestions. [email protected]

Either the compressor or the motor is defective.

Either the unloader valve on the pressure switch is bad or the extension cord is too long or the start capacitor is weak. When the tank is full, unplug and try to turn by hand a few turns. Air should come out the unloader valve drain fitting.