Bostitch pancake compressor won't cut out

by Chuck heinlein
(Sistersville WV US)

Bostitch pancake compressor won't cut out main tank blows safety valve.


Cut off for main tank does not auto shut off at factory setting

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Nov 12, 2016
Pancake compressor won't cut out
by: Bill

Well, the only other thing is that the pressure switch range is higher than the old.

If the pressure switch is supposed to but power at, say, 150 PSI, and at 155 PSI power is still flowing through the switch, then either the cut out setting is higher or the switch is not working.

Nov 11, 2016
Bostitch compressor won't cut out
by: Rick

I have the same issue. Replaced the pressure switch twice and it still does not work. Check for current flow past the switch at 155 psi and it was still allowing electricity to flow. What else could be wrong as they switch distributor claims to have tested the switch before sending the replacement to me.

Jun 12, 2016
Bostitch won't cut out
by: Bill

Pretty much suggests that it's the pressure switch at fault, Chuck.

To check it, use a multi-meter to determine if the power is still flowing past the pressure switch when the tank pressure is 5-10 PSI higher than the cut out set point of the switch.

Care must be taken when checking as you are dealing with live wires.

If power is still flowing through the pressure switch when the normal cut out pressure has been reached, it normally means you need a new switch.

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