Questions & Answers for: craftsman air compressor wont pump

...craftsman air compressor builds up to 35 psi and with pump still running,wont pressure up no further.Could it be a bad pressure switch,or bad head gasket or something else??And how do I troubleshoot ...

...craftsman 921. air compressor pumps up to 120 pounds of pressure with no problem but when the motor shuts off air leaks rapidly from around the pressure switch and the motor constantly kicks off and ...

quits pumping at 40 pounds but compressor motor still runs Did you unlock the ring around the pressure adjustment knob? turn clockwise all the way and relock. Good Luck

Craftsman 1 hp, 3 gal air compressor model #921.153101 that wont pump air, the motor runs fine, the hose is clear what can I do to get it running? Remove the air filter and see if the inlet is sucking

compressor will pump anymore than 35 pounds. I have put in a new piston kit. What is wrong Does the motor continue to cycle? Is the air bleed valve completely closed? Is the regulator knob adjusted to

compressor runs all the time an will not build up no more than 45 pounds of pressure Check for leaks all over the machine. Possibly the O ring on the drain valve is damaged. If the machine is oil-less

...sometimes a small section will flip over backwards and will no longer seal the piston enough to compress the air. You'll have to contact Sears to see if parts are still available for this

my air compressor pumps up fine but when it kicks back on wont run until I let all air out then it will pump up again if any air pressure is on guage it wont run check for a bad check valve

...air conditioning system but 0 when compressor turned on With AC compressor turned off 40 pounds of pressure, with compressor running 0 pounds of pressure Detect refrigerant leakage in the system, ...

...craftsman air compressor model number 921.153101 that won't pump-up over 40 pounds Please help Its probably a oil less compressor so it could be the reed valves are bad or the piston rings are bad. ...