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AMS 39VCB cooling unit not working


alexG
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hello,

 

i have a problem with a machine AMS 39 VCB, i just purchased used.

The machine works fine, just the cooling unit is not working when connected to the machine. I.e. if i plug the cooling deck direcly, it is working fine, if i plug it to the plug inside the machine it is not working. Checked the wiring and everything seems fine.

An idea or previous experience?

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There is a refrigeration relay behind the lower panel below the shelf connectors. While not easy to get to, check that you have 4 wires going to it and that one hasn't been removed to disable the compressor.  If all 4 are there then the relay circuit you're using might be bad.  If that's the case then you can switch the compressor output wires to thw other outputs of the relay.  Also check that the refrigeration harness is plugged into the logic board as well as the temp sensor.

Edited by AZVendor
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  • 1 month later...

i am back. So on 2 machines it was indeed the relay that needed to be changed. On one unit, the problem was the filter of the cooling unit that was installed at the wrong location.

 

Relay is the way to go however if you have the same issue.

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