Compressor Oil Sight Glass Bubbles

2 compressor which is a 3 head with 2 electric unloaders.

Compressor oil sight glass bubbles. This is the no. Bubbles in your oil is the least of the probs. Use proper techniques for checking the charge of a system do not rely on a sight glass. Why was the compressor low on oil.

Reading a sight glass. In severe cases the foam can leak out of the machine through breathers sight glasses and dipsticks. If you charge a system properly there is a good chance your going to see bubbles in the sight glass on a 72 78 day. You ll prolly notice it takes you a lot longer to get your vacuum down to where you want it while pulling through the compressor since your boiling the refrigerant out of it.

I have run all my test with compressor fully loaded although light load on system and no. Oil streaks in the sight glass usually indicate a low charge and that the compressor is pumping oil from its sump. Shows bubbles in a sight glass an a cars a c system. If the sight glass is cloudy the desiccant bag has probably burst.

If an r134a system has a sight glass do not use it or try to perform diagnosis as it is normal to observe bubbles in this type of system. Foam is a collection of small bubbles of air that accumulate on or near the surface of the fluid. New compressor is installed and i am getting foaming in the oil sight glass. If you come back on a 90 day the bubbles will be gone.