Compressor Troubleshooting

[wilko123]

Hello Fridge engineers!

I came across some tandem copeland compressors on a climaveneta chiller recently and whilst they were running noticed that various cylinder heads were very cold too touch. Othere were hot as suspected.

Is this a cause of valve failure letting by?

anyone offer some recommendaitons?

[daniel25486]

The comperssor has capacity solenod valve?

[monkey spanners]

Are these two stage comps? I suspect this would make a diffence between the high and low stage heads but i haven't worked on one so...