GE Nautilus Dishwasher problem

I have a GE Nautilus (Model # GSD2200G00CC) dishwasher. I have used it sparingly. In the last six months, I may have used it for 3 or 4 times. In the last three weeks, I have seen dirty, smelly water collecting at the bottom of the dishwasher. I have not used the dishwasher for about two months now. I run the dishwasher just to drain the dirty smelling water. The dishwasher drain pipe is connected to the disposer without either a loop or an air gap. But, remember this was working fine without either of these.

I used a "liquid plumber" from Sams club and poured it in the dishwasher, in the drain to see if that would help. It did not.

Yesterday, I found some mold inside the dishwasher . So, I poured some detergent and clorox bleach in the dispenser and ran a "Hot cycle" with the heated dry. This cleaned the inside.

Is there a valve on the drain pipe? If there is, Is it on the dishwasher end or is it at the connection to the diposer?

I am trying to find out whether I should call a plumber who would apply the service call fee to the labor charges or should I call a GE technician (who said they will not do anything if it is outside the dishwasher..plumbing related) and who will charge a separate service call fee in addition to labor charges.

Would Greatly appreciate your reply.

 

You wil be better served by stop guessing, and set the dishwasher drain up correctly with loop and air gap.

Chances are you have a downstream blockage (you did not used to have -pipes do get thicker coarting of slime inside, often, as the years pass) that kitchen sink can handle, but not the extra discharge rate of the dishwasher pumping out. And not all of it maybe discharges, so it sits in the machine and stinks.

 

You need to run the drain hose up, fasten it higher than the point where it enters the disposal then to the disposal. Sounds like water from the disposal is going to your dishwasher. Either that or your water valve is leaking through. You need to use the dishwasher more often just to keep it cleaned out and limbered up.
If it's not draining remove the drain hose and see if it's clogged. It usually clogs at the disposer connection.