My name isXXXXX will assist you
Have you recently replaced the garbage disposal
where does the drain line hook up too?
Not to drain lines it is just looped into the sink?
yes to drain its clear of clogs
Then if you are sure you hear the drain motor operating, you have a defective drain motor,
Most likely the impeller is just spinning freely
no impeller is not spinning freely checked motor seems to run fine
From the drain pump the only thing left is the drain hose and you just told me the drain hose is free of clogs
yes correct but hos from pump runs to a box like drain with a piston&nut that has a spring
Acting like a backflow valve?
Can you test with the piston and spring out of the box?
I assume so I replaced the valve about 4 months ago it was working and than I have the same problem again
It sounds like a weak spot in the unit. Can you bypass the box and go straight to the drain
possibly with the right size hose
I think I would be doing that over replacing the same part 3 times a year
yes I think the box drain is the problem
Please let me know how it goes, but I am sure you can bypass the box, just make sure you have a high loop installed on your drain hose so the water can not flow backwards