I have an old 2.5hp Craftsman compressor. Lately it will kick off at 95psi and not kick back on untill its under 70psi. I have the regulator turned all the way up. Is this a sign that the regulator is bad or is there something else I need to change?
Air Compressor not building up enough pressure
- Thread starter nwjones18
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Sounds like the pressure switch. Some are adjustable.
Your pressure cut off switch may need adjustment. Check if yours is adjustable. if not, you'll need a new switch or live with the lower pressure
Ditto on the pressure switch. I have a Craftsman and the switch was out of adjustment so it would switch off way early. You may have to open the electric box (unplug it first!) to find the adjusting screw, and if it's like mine it may be one of those tamper-resistant screws with a special head on it.
JHZR2
Staff member
Originally Posted By: pcoxe
Sounds like the pressure switch. Some are adjustable.
+1 the regulator just does what it can with what it has... The cutoff switch is the key.
Sounds like the pressure switch. Some are adjustable.
+1 the regulator just does what it can with what it has... The cutoff switch is the key.
Of course pressure gauge could be broken also.
Thanks so much I adjusted it and all is well. Pumping up to 120. Can't believe I didn't already know to do that.
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