Our Atlas Copco ZR400 air compressor is currently experiencing high oil temperature - trip out compressor at 70 degC. The temperature of the cooling water outlet of the LP element is also high at 102 degC and the LP element 1 outlet is 216 degC.
What could be the likely cause? Is it due to a clogged oil cooler?
Please advise and thanks very much for your usual assistance.

Peter Kong,
Singapore