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by ridgway
(granton wi)
New bostitch pancake doesn’t shut off when it reaches pressure. Are the new pancake compressors supposed to continuously run !!
Bought a Sanborn and it wouldn’t shut off when it reached pressure so took it back and bought a Bostitch and the same thing, what am I missing !!
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Hi Ridgway.
Since you still have the Bostitch, what is happening to the air pressure in the tank? Is it still building past the normal cut out pressure level…?
Let me know as a comment here, please and then we can pursue the reason.
Bostitch running and then stopped?
by Stephen
(Ohio)
Bostich CAP60P-OF … the compressor was running and then stopped… wont build up pressure.
After that it wont build up pressure. it seems to run fine so i took it apart and all of the componets seem fine, the seals look good. so im wondering what else would cause this problem.
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Stephen, the usual culprit for an air compressor that runs and does not build pressure is the intake or pressure valve, or an internal gasket that lets go under pressure.
See the compressor TROUBLESHOOTING page, and click the link to “will not build pressure” for more info.
Post a comment here with more information about what you found when you did the checks, please.
Bostitch taking a long time to fill
by: Anonymous
My 6 gallon pancake Bostitch compressor took 14 minutes to build up to 140 psi and keeps running and will not shut off. Any idea what’s wrong? Thanks so much!
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It’s broken! 🙂
What was the fill time when it was working properly, please?
Rather than retype all of the issues that could cause this compressor problem here, they are found, in detail, in the compressor troubleshooting section on this site. Please see the pages that refer to info about why air compressors run long, but don’t build pressure.
Had a look? When you check out your compressor using those pages as a guide, what did you find? Please add a comment.
One last trick was I plugged the safety release valve and as it turns out, the pressure sensor was working fine, but the pressure safety valve was blowing just before the sensor would have shut off the compressor. I’ve ordered a replacement valve and that should be that! Thanks to you for holding this forum!
I have a Bostitch Cap1512-OF and the compressor continues to build pressure til the relief valve blows. I’ve replaced the pressure sensor with a new one and cleaned the connectors and same problem. What next? Any way to dial down the pressure sensor? Thanks
“Any way to dial down the pressure sensor?”
Not to my knowledge. Fixed by the factory.
At what pressure does it blow? If that pressure is at or below the normal cut-out pressure, then the PRV is bad. You can try cleaning it – it should not have any lube on it. If that doesn’t help, you’ll need a new PRV. The rating should be stamped on it.
Hi and thanks for your reply. I should have mentioned that but it blows at about 155-158 #, so its not the PRV. I replaced the pressure sensor switch and it still blows at the same levels, so I’m thinking the new switch is defective and have ordered another switch. I’m not a mechanic but it appears there is no other obvious part on that compressor that I can replace/adjust that would address this issue.
Thank you for any insights,
Paul k
Right.
You are on the right track.
Is the replacement that you have marked?
It could be the wrong part (say 145-175), or just defective.
Anyway, hopefully the next one will work as expected.
I have a 1yr old bostitch air compressor it will build initial pressure then stop but will let the tank run to empty and not build up pressure. I have to unplug and restart, then it will again fill the tank and stop. do i need a new pressure valve?
“do i need a new pressure valve?” I don’t know what that is.
If you mean pressure switch, maybe.
If you mean check valve, more likely.
What model do you have?
Pan compressor 150 psi 6 gal 2.6scfm
Either an actual model, or a pic or three, please.
Model number BTFP02022.
Still not the model number, but I’m gonna guess it’s a BTFP02012.
Looks like you’ve got a bad check valve. It’s the thing on the tank that has a hose going into it. Try removing the hose and then the valve. It should pass air from the hose end, but block air from the tank end. If it doesn’t block, then see if you can get it apart and clean/fix it. If it then blocks, reassemble and test. If it still doesn’t block, and you can’t fix it, you’ll need to buy a new one.
Good luck.
Thanks
Iam having same problem with my bostitch 150 psi air compressor.
What should I do?
Same as what we told tom.
Or, go here:
find your symptom, do the checks.
Stumped? Tell us what you checked (and your exact model number) and we can go from there.
I replaced the check valve. Which was way hard to find. It only pressures up to 70 so it’s hitting the trash. I’ll get a different one. One you can find parts for.
Good plan…