Hi Samlee and every one!

I have problem with one screw compressor bitzer, when we tried to start the current very high goes to 500A for 3 or 4 second and the main breaker stop.

We have soft starter for start up as well.

and finally found less oil in the compressor but i was surprise that the compressor was not detect by any oil indicator, i mean that unit only have PTC for oil temperature but it was not open at all so always close.

after that I measured again the resistance and merger, so far everything ok


my question,1) after we top up the oil, will the compressor start again (any body had experience before?)
2) is that oil level switch is a compulsory? because i checked with bitzer website that it is an option.

thanks for your comment.
Achiel