GE Dishwasher

Pump not discharging water, problem with lime deposits.
How do you remove lower spray arm?

If the wash pump is stuck due to hard water deposits, you have to install a new impeller & seal kit.

If the dishwasher is not draining - it could be a clog in the drain line or a bad drain pump.

To remove the lower spray arm - just pull it up.

So what is exactly wrong with your dishwasher?

Here are the break down diagrams for the GE dishwasher Model GSD6200G00BB

Gene.