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Need HELP! Dwyer Love TCS Controller- Temperature probe Answered

Recently replaced a new aquastat for wood boiler and thermocouple. The new aquastat is a TCS-4010 Dywer Love controller. I have tested 2 different thermocouples and it appears the input for probe wires isn't detecting the thermocouple and creating a buzzer alarm with 000. Is this common to have a faulty controller new, off the shelf?

Aquastat: TCS-4010

https://www.grainger.com/product/product/LOVE-115V...

Thermocouple-

https://www.grainger.com/product/TEMPCO-Thermocoup...

Thanks!

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