I wanted to only mess with the washer in a single 30-minute session. So, I assumed both solenoid valves were leaking and purchased replacements. It was a simple project, as well as a good chance for my 13-year-old son to accomplish something practical. Steps/tools used, in order:
STEP/TOOL 1: Pull the washer electrical plug from the wall; no tools needed.
STEP/TOOL 2: Shut off the hot and cold supply hose valves in the wall; no tools needed.
STEP/TOOL 3: Unscrew the hot and cold water female hose connectors off of the male valve inlets; used channel lock (straight jaw, tongue & groove) pliers and bucket and towel (water will leak).
(OPTIONAL STEP: To do a leak test on your new valves, connect them to either the hot or cold inlet hose and open the valve on your wall. Water will flow to your valve and should not leak out the other side of the valve.)
STEP/TOOL 4: Remove the two screws that secure the top panel of the washer, and remove the top panel; used a T15 star head screwdriver.
STEP/TOOL 5: Remove the electrical connectors from each valve; no tools needed.
STEP/TOOL 6: Remove the black tubing from each valve outlet. There are two valve outlets on the cold water valve and one on the hot water valve. Pull the hose clamps off first, then twist off the tubing from the valve outlets; used needle nose pliers to remove the clamps, bucket, and tower for the water.
STEP/TOOL 7: Remove each valve from the washer's back panel; used a flat head screwdriver.
STEP/TOOL 8: Install the new valves on the back panel of the washer; no tools needed.
STEP/TOOL 9: Plug electrical connectors back into the valve electrical receptacle; no tools needed.
STEP/TOOL 10: Push the tubing all the way back onto the valve outlets and put the hose clamps back into place; used needle nose pliers.
STEP/TOOL 11: Reconnect the hoses, plug in the electrical cord, and run the washer to see if you have any leaks or other problems; no tools needed, but you may want to use the channel locks again to tighten the hose connectors.
STEP/TOOL 12: Put the lid back on the washer and install the two star head screws with the T15 star head screwdriver.