Why does my Thermoshaker PCMT/PHMT appear to be not heating/cooling?

It could be possible that the plug connecting the unit and the heater/cooler block has become dislodged. To check this is connected correctly, disconnect the external power, remove the four knurled screws holding the block in place. Make sure that the plug is connected securely between the block and the unit. Align the block so that the warning label is facing the front of the unit and secure using the four knurled screws.

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