Easy test but can be slightly difficult to access wires , you need to remove the plastic wire covers and access the relay , find the capacitor wires and remove one as it might affect reading. use meter probes to contact the 2 caspacitor wires and test wth meter set to capacitance . The reading should be 5% + or - the rated capacitance. This one was a 2.5mF so 2.37mF lowest the reading i got is 2.32mF close to needing repalcement so i will replace it with a new one.
If the capacitor is faulty the compressor will be less efficient , it may start intermittently or not at all in which case all you will here is a hum and the fridge freezer unit will not get cold.
See video of this entire process below
Testing fridge freezer refrigeration capacitor - YouTube
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