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Contactor not latching Discussion ThreadContactor not latching Electrical Advice

Hi all.

Is it too early to wish everyone a happy Christmas?😅

Looking for a little bit of help regarding a contactor.

I got a call to look at a 230v heavy duty mixer/blender in a busy hospital kitchen. It has stop/start buttons and a contactor within the appliance itself. Contactor is a Teco, 3 pole normally open. When I arrived I assumed it was the contactor. Start button wasn't energising the coil. It just seemed the start button wasn't working. I checked it for continuity by pressing it and testing the contactor. All was good in that respect with the start button and also the stop button. When I manually engaged the contactor the appliance ran away fine.

I replaced the contactor, but still nothing. The power side of the contactor seems OK. I have voltage. Just wondering if anyone knows what the issue could be. I replaced the wiring like for like to the née contactor. And the appliance was operating fine all along, with me being the first person to open it up.

I've attached a picture. Not sure it'll help. I have control cables at no.22 of my NC end but nothing in no.21 NC. Is that normal?

Thanks in advance.
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Contactor not latching Electrical Advice
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