Question about Craftsman Air Tools & Compressors

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Power switch not working properly it will turn on for about 5 seconds the turn off no pressure build up

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I know this sounds too easy, but it sounds like a faulty power switch. Being a Craftsman, parts are no problem. I'd replace the switch.

Cabinetman54

Posted on Nov 19, 2009

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The fuel pump stay runnning for awhile before the car starts


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A quick test is to turn the key to on and measure pressure. Should be 40 psi. Pump will hum for 5 seconds and shut off if engine is not running. (Safety step).

Pressure should drop very little for 5 minutes.
You can cycle the key off for 15 seconds or until you hear the relay click off. Then turn key back on to start pump for 5 seconds again to build pressure. This will help get it started for the day as it builds pressure that bled down over night.

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While using my compressor (Husky WL65004AJ) the compressor used to go on when the pressure dropped down to about 85-90 psi. Now it doesn't. The only way that I can build up the pressure again is to shut...


Hi and welcome to FixYa, I am Kelly. I tried several places too cross this model number: WL65004AJ without success. The pressure switch has 2 settings one for HIGH cutoff and one for LOW cycle on. 1/2 of your pressure switch is not functioning properly. With the proper model number I could find a source for the pressure switch for you. There are a couple of different types of presure switchs, One is a stand alone switch on the air plumbing with no external controls (under $30.00) and one is an all-in-one switch that has the on off switch and air lines connected to it that runs around $86.00. You need a pressure switch.... it is just a matter of finding out which one fits your model and replacing it.
Thanks for choosing FixYa,
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