I have a Kenmore Model 110.8 dryer which currently has a 3-prong NEMA10-30 cord. I want to replace it with a 4-prong NEMA14-30 cord.
This is how the current wiring looks like (apologize for all the dust):
You can see that the grounding wire comes from another internal wire in the back (don't know exactly where it's coming from, but it's not obviously connected to neutral)
I just want to confirm:
- The existing ground wire has to be connected together with the new Neutral to the middle clamp, despite having grounding color
- The new ground from the cable has to be connected where the current ground cable is.
The alternative way I could think of:
- Connect the new cable the same way as the old one (neutral goes to the middle clamp)
- the new ground from the cable gets connected to the existing ground cable on the frame
The reason why I believe the first option is correct because I think there is only one connection from chassis/frame to ground (which is the one in the picture). But since I am using just 3 prongs right now, neutral and ground have to be connected somewhere internally. Hence the first option makes sure that neutral and ground are separate and the actual (new ground) is only connected to frame.