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Update: My approach to diagnosing fridge compressor issues shifted completely after a 2022 training seminar.
I used to just listen for the hum and check for power, but now I always check the PTC relay and capacitor first with a multimeter. It saves about 20 minutes per job. Anyone else find this new method faster?
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holly_sanchez756mo ago
Our shop started using that PTC method back in 2018, and it cut our diagnostic time in half.
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simon7176mo ago
My 2019 training taught me the same PTC check, saving me tons of time.
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zara_kelly276mo ago
Wait, wasn't the PTC check introduced in 2020? I'm pretty sure that's when the rule changed.
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