Could be your drain pump is bad. But sitting for a year also the filter, grinder and area could be full of debris. Here is a great site to give you ideas on how to fix your washer, As you look for a part and click on the part picture you get a video on how to replace this part, but then you can see how the unit is put together and clean your unit out. Or replace parts not working. I am guessing a stuck flap valve also could be stuck closed.
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Could be your [link|https://www.ifixit.com/products/wp661658-whirlpool-dishwasher-drain-pump|drain pump|new_window=true] is bad. But sitting for a year also the filter, grinder and area could be full of debris. Here is a great site to give you ideas on how to fix your washer, As you look for a part and click on the part picture you get a video on how to replace this part, but then you can see how the unit is put together and clean your unit out. Or replace parts not working. I am guessing a stuck flap valve also could be stuck closed.
HI:
Could be your drain pump is bad. But sitting for a year also the filter, grinder and area could be full of debris. Here is a great site to give you ideas on how to fix your washer, As you look for a part and click on the part picture you get a video on how to replace this part, but then you can see how the unit is put together and clean your unit out. Or replace parts not working. I am guessing a stuck flap valve also could be stuck closed.
https://www.partselect.ca/Models/GU1100XTLQ1/Sections/PUMP-AND-MOTOR-PARTS/?ModelID=623604&ModelNum=GU1100XTLQ1&mfgModelNum=&ManufactureID=3&Selected=UHT42HHG&Position=9&mfg=Whirlpool&Type=Dishwasher&Mark=9
Good luck.
Alton