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5.14 Backflow valve
The backflow valve is located in the sump connector to the drain
hose.
5.14.1
Removing backflow valve
Tools needed: T20 Torx, #2 Phillips & small flat blade
screwdrivers.
1.
Remove parts for bottom front access
– section 5.1.4.1.
2. Remove water completely from sump.
3. Using a small flat blade screwdriver, carefully work the
backflow valve out from the sump, taking care to avoid
scratching the sump to avoid any possibility of leaking.
TIP:
To avoid leaking, do not scratch the inside of the sump
outlet while using a flat blade screwdriver to remove the
backflow valve.
5.14.2
Installing backflow valve
Carefully slide replacement valve into sump outlet until it clicks.
5.15 Sump
Replacing the sump requires access from underneath and inside
the tank and requires removing several parts.
5.15.1
Removing sump
Tools needed: T20 Torx, #2 Phillips & small flat blade
screwdrivers and pliers
.
1. Remove water completely from sump.
2.
Flip dishwasher for bottom access
– section 5.1.5.
3. Disconnect drain hose from sump.
4.
Remove drain pump
– section 5.6.
5.
Remove heat pump
– section 5.12.
6.
Remove aqua sensor
– section 5.7.
7.
Remove water switch
– section 5.13.
8.
Remove backflow valve
– section 5.14.
9.
Remove sump parts (inside tank)
– section 5.9.
