Model Number: WF330ANW
Brand: Brand
Age: 1-5 years

We have the nd error code and are still in the process of checking whether the drain pump works or has an obstruction. My question is about the Trouble Shooting section of the manual that says to check voltage of pin #3 of CN2 and CN3 of the PCB. My husband is an Electrician, but can't figure out how to check the voltage of these pins with a multimeter while they are plugged in. The manual says to check that the voltage is AC 120V when Drain Motor operates, so obviously it must be plugged in. What are we missing here? Thanks.

Also, we did the Quick Test Mode Drain Pump Test and heard a noise like the pump is trying to run but it can't. So would this mean the control board must be okay since it's sending a signal?