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We need to know the model number to give you the best answer for this. There were several machines that used the "Neptune" name.
You will find it when you open the door on a sticker in the crevice on the cabinet.
I appologize for the delay. I'm still working. I did get the information.
The front panel would first come off.
This will show you the rest.
It is important to line up the new boot correctly when you put it in.
I will be home approximately at 9:30 pm (est) and I will be able to give a step by step on the replacement of this boot if that is ok for you.
Please let me know.
I'm sorry we weren't able to give you the step-by-step earlier. It's was too hectic at my day job.
However, if you get tied up (putting the new one on) you can post back to this question and we can upload you the service repair manual with the step-by-step.
Putting the new boot in is a bit tricky. So, if you get stuck post back here.
Let me know if you would still like to have a refund after you finish the job and I will arrange for the processing.