Duet Sport - not draining (F-21) - grinding noise from pump!

Washer Repair
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1

Washer (not brand new) was in garage for a couple months (Nov - Jan 16th) while bathroom was renovated. Exposed to sub-freezing temps (and then some) NO ANTIFREEZE was used prior to storage - contractor allegedly allowed it to thaw before testing it out. Water won’t drain, shows F-21 error. I removed front panel & checked drain filter, I pulled out a couple coins and made sure all was clear (nothing around the impeller, etc.), reassembled everything and it still won’t drain also verified that the drainage hose was clear, not too high & not to low, etc. I noticed "a liquid" inside the actual motor compartment - I assume it’s a kind of lubricant. I removed the pump motor and noticed the liquid does drip out of the motor compartment and contains small black particles. Did the freeze ‘kill’ the pump motor? Should there BE liquid inside? Wondering if simply replacing the PUMP unit (8540024) will solve the problem. Should I also ‘worry’ about the AIR TRAP (8540180) ?

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208181199.pdf

THANKS!!!

3

Yep - the pump motor is definitely active, the impeller is spinning and whole motor portion vibrates. It’s not quite right though as it far noisier than it should be/was! There’s NO way my hand will fit into the black accordion like tube, it’s opening is only about 1.5 inches wide! However, I’m aware of the ball you mentioned, is a back flow preventer, right? It’s there and moves freely, although not sure it’s ‘properly’ preventing back flow. If I squeeze the accordion like tube, sort of milking it to manually ‘pump’ the water out, should the water flow BACK into the tub? (i.e. I can see the water level go up & down as I ‘milk’ the tube. Water DEFINITELY is flowing to the pump!!! I’ve had to open the pump trap several time to drain the washer!!! PLENTY of flow to the pump. :wink:

4

try replacing pump

5

I had the same issue - there was a blockage (stuff from kids clothes!) right at the discharge. Unclogged and it drained better that it has is many months (quieter too).