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Re: wont kick off, runs constant
It is possible that the capacitor is bad, check the mfd rating on the capacitor which will be probably around 35mfd or 45mfd as example. Replace capacitor with exactly the same microfarad rating as the original.
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Sounds like you need a bigger fuse.What happens is there is no load (air) in the tank so their is no compression and the motor isn't working as hard as when it reach's the cut off point and restarts.Now there is air in the tank which makes the motor work harder and that pulls more than 15 amps and blows the breaker.I would start with a 30 amp and go higher if need be.Thank You for choosing FixYa.com
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You did not list model number, however if you have oilless type check the cylinder/piston by manually turning crank until piston is at top and examine cylinder for wear or scratches. If worn replace cylinder kit for full pressure. If ok check reed valves /valve plate for wear or broken reeds. If oil bath type, problem is usually air leak or reed valves / valve plate. As a general rule, you can keep track of wear by noting how many minutes it takes to fill the tank to cut-out. As the compressor wears it will take increasingly longer to fill. When new, and depending on tank size/ hp, most compessors fill within 2 ~ 5 min. Good luck
When the compressor comes up to pressure and kicks off, you should normally hear a gasp of air escaping. That gasp is the release of pressure from the compressor itself - not the tank, and it is supposed to get released so that the compressor can restart without being preloaded with compressed air. My guess is that the gasp is not happening. It is probably some debris or a gummy mechanism. The mechanism is supposed to be triggered by the same mechanism that shuts off the motor.
you need to run this compressor on a cooker trip (ei:30 amp) it pulls far to much power for a house hold trip (ie:15 amp) even if close to a 13 amp plug, at 375 feet???? thats some loss in the wire, over 50%!!!!! if it trys to start on the low loop.s it pops your trips!! right? hook it up to your cooker trip, but its still a very long hick for your power to get to,,
ps,,,this compresor never come with a three pin plug on it did it? like 3.7 hp = 4000 watt's app at the plug!
you could try puting a bigger starter (cap) on the motor that will hold more amp's for starting up on
and it will give your motor a longer,,,kick start,,,
talk to your frendly sparky first! ("caps," can and will kill you, if you tuch a charged up one!!!! so dont play with them) hope this helps you out
Check the reset button on the motor to see if it tripped. The motor may be overheating. Some motors have an internal breaker and they have to cool off before they restart. Also check the pressure switch. Move the switch back and forth ( on and off ) and listen for a click. If it doesn't click with low to no air pressure then the switch is bad.
First: Most all compessors use check valves at the tank and an unloader to allow the compressor to start without a load. Make sure that system is unloading and that check valve is not leaking causing head pressure at start. Second: Too frequent starts and stops will cause motor to overheat. Check Quincy manual for max starts per hour. enjoy
Tank size only becomes a factor for one reason – A larger tank for air. A compressor will run until the pressure in the tank builds to its high-pressure point. Obviously, the bigger the tank, the longer it takes to consume the compressed air. However, the downfall is that once the air is depleted, it takes a lot longer for the air tank to refill with pressurized air. I would only go with the bigger tank if I am concerned about the motor starting and stopping too often, or if I know that I will need a constant flow of air in longer intervals. You have a choice between a larger tank and a constant-run unit.