- Question Title: IR UP6 Problem
- Asked by: Guest
- Asked On:
- Answers: 1
I have a fairly new UP6 15 that has been working fine for more than 2 years (450 hrs).
Recently developed a problem: When the compressor reaches the target pressure, it stops and releases some air.
Now when it continues to release air until the pressure drops and tries to start again but trips a breaker.
I have to remove the cover, reset the breaker (blue button) and start it again. It only does this for the first few cycles, then it works fine. Any suggestions?
Thanks.
Answers & Replies
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Hi Rusty,
I just answered a similar question. You can find it here: Air leaks out continuously - UP6 Ingersoll Rand
When the compressor stops, it should release some air. That's ok. But it should stop releasing the air after a while.
It should only release it's internal pressure. not release your entire compressed air system. To prevent this, there is a check valve, called the 'minimum pressure valve' installed near the outlet of the compressor. It makes sure that no air can flow back into the compressor when it is stopped (it acts as a check valve).
I think in your case, this valve stays open. When the compressor stops, it blows-off the internal pressure. But because the check valve is open, the compressed air from your air receiver flows back into the compressor.
Result is that the compressor keeps releasing air, and thus lowering the system pressure. When the pressure becomes too low, the compressor starts up again.
Why does it trip? Because normally, the pressure inside the compressor would be zero. But because of your leaking minimum pressure valve, it is the same pressure as your net pressure ( 6 - 7 bar probably).
Your compressor will have a hard time starting up against this pressure!
Why it only does so for the first few cycles? Maybe your compressor warms up and the valve starts functioning again. Not sure (hard to tell from here).
Check the link at the beginning of my answer for the location of the minimum pressure valve.
Hope you will we able to find the problem with above information. Let me know if you need more info and when you fixed the problem.
Cheers.