Harbor Freight Compressors

Harbor Freight - won,t build pressure past 20 psi .It ran fine 12hrs. prior .  I used it pm, it is like new few hours use, I left it plugged in turned off valve, next am heard it running, opened garage noticed oil on floor, unplugged ...

harbor freight 40400 compressor  Harbor Freight 40400 air compressor rarely used.

The start capacitor blew (130mfd 220-250 volts).

I replaced it with a Packard PTMJ108 rated 108-...

Harbor Freight # 94355 8 gal oiless compressor  Harbor Freight # 94355 8 gal oiless compressor

Air leak on cyl head. Not from gasket. Looks like small hole in center of the top of the head

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Harbour Frieght Compressor - motor overheating?  Horbour Frieght compressor trips the reset button after running for about 15 seconds. After ten min. I can reset it just to have it run another 15 secs....

Have a 90 psi Harbor Freight compressor that won't inflate a bike tire to 60 psi  Have a 90 psi Harbor Freight compressor. Pressure guage reads 90 psi when it shuts off, but still can barely inflate bike tire to 45 psi. Tried on car ...

Harbor Freight Compressor Regulator isn't regulating?  Have a cheap H/F compressor rated for 4.5 SCFM @ 90psi, tool is rated 4 SCFM @ 90psi.

With the reg set at 90 and tank pressure reading 120, when I ...

21 gallon upright 2.5 hp compressor  compressor shuts off without reaching full operating pressure (circuit breaker trips)

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Bill says....

Jon:

Make sure the ...

Harbor Freight compresosr - spewing oil from the oil vent plug (looks like a shower coming out)  My new HF 2Hp 8 Gal. 125 PSI Air compressor is shooting out oil from the oil plug vent hole (2 tiny holes on the bottom of plug, 1 on top). It is definatly ...

leaking air at I believe unloader valve  I believe air is leaking at the unloader valve, how do I fix this?
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Ron, see the page on Check Valves for guidance.

If your check ...

B3800 pumps up to 40 psi stays running but wont ...  its a B3800 pump i tnk its a 80 gal comp have no idea whats wrong dosent make any funny noise runs at correct speed just wont pump up

B3800pumps up ...

harbor freight compressor - it wont do anything  i have a 21gal 3hp compressor . it wont do anything i wired around circuit breaker fan turns starting cap is not damaged or leaking.

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shuts off before filling  copressor shuts off before filling.

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Bill says...

Note at what pressure the compressor shuts off. Drain the tank, start it again,...

Oil spilling out of compressor.  The plastic combo oil filler/dipstick with crankcase breather on my little 2.5 gallon Harbor Freight compressor was cracked and falling apart.

I put ...

making noises at start up and then shuts down at about 40 psi. bad motor or bad pump??  Starts and then gets banging noise. at about 40 psi it quits running.

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Bill says....

I can't hear the banging noise from here,...

harbor freight compressor thermal switch keeps popping out  i have the 90234 air compressor from harbor freight. i have used it quite often for over a year. i have even pushed it multiple occasions running it ...

Pressure setting  I have the 3hp model of the same compressor. From the factory they come set a about 100psi instead of the advertised/rated 115 or 120psi. There is a ...

internal pressure regulator  The internal on my new model 67847 21 gal compressor. shuts off at 40 lbs. I want to know if therev\ is an adjustment capability that is owner friendly....

Did I damage a seal or something?  When the compressor runs for about a minute, oil start to ooze out of the hole in the oil cap. It started ever since I put a wooden stick in the oil tank ...

shane/ builds up 50 pounds of pressuer then belt squillls  hi i y old compressor just blew up so i bought a new harbor freight compressor pup and instaled it on y old tank and electric 5 hp...i took the check valve ...

Harbor Freight 65903-2VGA runs for 20 seconds and then trips  I have read all relevant posts and I kind of have the idea that it is my motor..

I have a secure connection to the wall with no extension cords and ...