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by Dustin
(Sandusky,OH)
Recently i changed the oil and all filters in our compressor, The next day it shut down with the code low line pressure on the the info screen.
Today i started the compressor and got code low separator DP.
I shut the compressor down then restarted and have not had any issues yet today with the unit.
Low separator DP has shown up in the past from time to time.
Any input on fixing the issues?
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DP
DP could be the setting is too tight, or you may have a blown separator, or the oil pressure is too low to begin with.
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DP
Ok, just to clear it up, DP means differential pressure, so the differential pressure is the pressure difference between the separator tank and the delivery pressure, if its too high, then it means there is a blockage (sep change required)
If its too low then it could be split (sep change required) what i cant figure out is, normally if the sep is split then it throws oil down the line, has this happened??
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Hi guys,
I have an issue with one of the Sullair compressor model 5500, the display sent the error V15 motor, do you know something about this error
Not really. But when does this happen?
Has the machine been working in the present location?
900h sullair compressor is saying overflow condition and will not get over 50 psi , what is causing this issue ?
It needs to get over 85 – possibly the MPV is opening too soon, depend on when this happens. See attached.
1500 Sullair has a reading saying “faulted internal com error “ what does that mean?
Internal Com Error – An error in communication between the controller and the compressor
has occurred.
So, check for loose/damaged wiring/connectors in the unit displaying the error.
Also, possible is a power supply problem.
Good luck.
Is there anyway to program the machine to reset the loss of control power fault without human interaction ie resetting on panel??
You’re losing control power? You probably should fix that; then you won’t need to program anything.
There is electric power. No reset available. On digital display it reads “Faulted internal com error “.
There are 2 Sullair 1500’s tied together, one is always in standby.
Rich, I was talking about Tony’s control power.
Your internal com error means the controller isn’t seeing the compressor – for starters, check wiring and plugs for loose, broken or shorted connections. My original answer is directly below your question once the arrow at the lower right is pointing up.