All Answers

Hi Brian – thanks for the manual. The error code is E15 with the word ‘watertap’ in the display as well. My reading so far, including in the manual you sent, is that this is consistent with water collecting at the bottom of the unit setting off the safety float switch. To answer your question about the overflow, yes, the unit is ACTUALLY overflowing. I’ve checked this by watching the front of the unit with the door panel removed and running until i see water leaking out at the two corners of the lower door seal. As soon as i see that, i open the door and see that the water level has reached the level of the lower door seal – it’s just a pool of water there. That seems to happen after about 5 minutes or so of running I don’t think there’s a float switch in this one. The best i can tell is that the float switch functionality is baked into the water inlet housing in the form of the float in the float chamber of the water inlet housing. I’m not certain of that, however, it’s just the only component I’ve found that seems to react to water level. i searched the manual for “flow meter” but didn’t see anything.

Hey Brian – i quoted your questions and followed with my answers below “So you are finding that water is overfilling in the tub and leaking down into the base? The water is not leaking from the unit anywhere else and getting into the base?” YES. I spent a good deal of time tracking down the leak before i figure out it was coming from teh drain tube on the front of the machine. No leaks from any other components “Is the water inlet valve turning off? Does it continue to fill for the whole 5 mins before the error code comes up?” NOT SURE. Any advice on how to check that? i have replaced the water inlet valve so i would suspect that if it is continually filling for the whole 5 minutes that the fault is somewhere other than the valve itself. Any thoughts on where that fault could be? Is there a sensor or relay somewhere that might be out? “It the unit level? water can leak out easy if the bottom of the unit is pushed back farther than the top.” YES, the unit is level. “are the spray arms rotating properly. They could be clogged with debris causing them to spray more at the seal causing water to leak out or the door could not be centered left to right causing a bigger gap on one side that the other which also causes water to leak out.” YES, i pulled both the lower and upper arms to verify that water flowed through them freely. There are no clogs and nothing obstructing their spinning.

I don’t see any leaks from any other source other than the drain tube (Not one of the drain hoses) coming from the base of the door down to the plastic base under the washer where the safety float switch and all the other components are located. The drain pump works fine and clears the water out of the cabinet. I’ve been watching every connection while it’s running and i don’t see a drop of water coming from anywhere other than the drain tube coming from the base of the door. when i had the diswasher taken apart, i grabbed one of my kids washable markers and drew all over the base plastic so i could see the source of the leak more clearly. it actually worked great but the only place i saw the marker washing away in the water was in the molded channel leading from the bottom of the drain tube at the base of the door to the styrafoam float at the center of the base which is part of the safety switch. Here’s another thought – could it be the control module? Something in the board not stopping the unit from filling?

BTW – what i’ve been referring to as the drain tube coming from the base of the door down to the plastic base under the washer is ACTUALLY called the OVERFLOW CHANNEL (AP5691298). It’s not a tube or drain hose as much as it is a formed plastic hollow “L” shaped thing that leads water coming out of the front of the machine to the bottom of the machine where it accumulates and trips the safety float switch

so, here’s some good news / bad news. good news is that i got it to stop overflowing. i put a voltmeter to the water inlet valve and saw that it was simply staying open. on that basis, i figured it was time to replace the master control board. I’ve done that and now the washer no longer fills without end – no more overflowing- yay! now for the bad news. it doesn’t seem like the washer is filling at all. about 7 minutes into the cycle, the washer starts beeping but nothing really happens. i waited another 10 minutes into the beeping, opened the washer and there was no water inside. i turned the washer off to stop the beeping and that’s where i left it.

So, for anyone following this thread, i’ll post the successful conclusion. i replaced the master control board late at night and was tired enough that i forgot to turn the water back on. Doh! after turning the water back on, the beeping stopped and the dishwasher was back to normal. So, the final fix was replacing the master control board. thanks for your help, Brian!