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Re: Leaking from rear in cabinet
If your dishwasher leaks, check these: Main tub seal
Note… If the main motor of your dishwasher is mounted vertically, beneath the center bottom of the dishwasher, the following instructions probably apply to you. But if your motor is mounted horizontally, the pump isn't serviceable--you need to replace the entire pump and motor assembly.
The main tub seal is beneath the drain impeller. It prevents the water in the dishwasher from leaking out near the shaft of the motor. To get to the seal, which is inside the dishwasher, remove the:
Spray arm support
Then pry the seal out of its housing and replace it.
Door gasket or seal
Over time, door gaskets and seals harden and lose their ability to seal properly. You can't repair the seals. You need to replace them if they've begun to leak.
The water-inlet valve, itself, seldom leaks. But, the water-supply line from the house and the rubber tube leading from the valve to the inside of the dishwasher may leak. Tighten or repair/replace these as necessary.
The water-inlet valve could mechanically stick open. When that happens, the water continues to flow into the dishwasher, which then floods your kitchen. Turn off the water supply to the dishwasher, and replace the valve.
Behind the lower access panel on your dishwasher are several rubber or plastic hoses. If the leak appears at a connection, try a new clamp. If that doesn't work, replace the hose.
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If this is a Bosch dishwasher, the E15 error indicates water in the base of the unit. You need to unplug the dishwasher and pull it out (if it is an under-counter unit) carefully. Empty the water from the base. Sometimes tipping the unit so that the base is tilted 45 degrees from the floor will help the water flow out. Make sure that the entire base is dry.
Replace the dishwasher under the cabinet (if needed) and plug it back in. If the error repeats at the next cycle, you need to determine where the dishwasher is leaking. It could be the outlet hose, the pump or the tub. Replace the bad part. If the dishwasher is under warranty, contact Bosch.
I hope this helps.
(if you recently had a flood either under the kitchen sink or an overflow at that sink, you just need to dry the dishwasher base.)
It's a fairly big job. You have to pull the dishwasher out from under the cabinet. Then remove the left-hand metal panel. You should now be looking at the case-brake assembly. Reach inside the dishwahsher and turn the water-inlet bezel counter-clockwise to remove it. Now you can tilt out the case-brake assembly and loosen the clamp that holds the drain hose in place. Pull the hose off (have a towel or Sham-Wow ready to catch the water). Then you have to remove the clamp or hose-restraint at the back of the dishwasher. Thaen you can pull the drain hose out and replace it.
This problem can normally be fixed very simply and you can do it yourself. 1. There is a flexible drain line that goes from dishwasher to the sink drain line or garbage disposer. 2 You will find this flexible drain underneath the kitchen sink. 3. Make sure that the flexible dishwasher drain line goes up above the sinks lower portion of the sink basin and then comes back down into the sinks drain line or grabage disposer. The dishwasher flexible drain line must go above the bottom of sink basin like an upside down u shape, it will act as a upside down p-trap that you see under the sink in the sink drainline. 4. Once you have the flexible dishwasher drain line in this configuration (upside down U shape or p-trap) it will prevent air from leaking out of the dishwasher as the smell you are smelling is coming from the drian line. 5. You should also look inside the bottom of dishwasherr to make sure the drain screen is not clogged up.
Check the connection to the drain tailpiece from the dishwasher under the sink and make sure the clamp hasn't slipped off and is tight. Check the drain hose from the dishwasher and be sure it's not split or damaged. Check the drain spur on the drain tailpiece and see if it's corroded or leaking. Check the trap under the sink as well and make sure it's not leaking.
two possible sources of water
inlet valve leaking. turn water off after use and if no water accumulates, then cause is leaking valve
if drain is plumbed in to a spigot on the sink trap, then every time you empty water from the sink, some of it goes down to the washer
cure by taking the drain hose up as far as possible under the sink in a swan neck
leaking valve - to check, turn water off and see if it still happens
if appliance is plumbed in to a spigot on the sink trap, then when you empty sink, some of the water finds its way into the dishwasher via the drain hose. to cure, take the drain hose as high as possible under the sink in a swan neck
Sounds like you're getting back-flow from your sink where the dishwasher drain line is plugged into. You have to make sure the DW drain hose has a vacuum break in it. Sounds hard, but it's not.
Look under the sink. See where the DW drain hose plugs into your plumbing (probably at the disposal)? If it angles downward and into the cabinet to your DW, that's the problem. It's siphoning water out of your sink (along with the chopped up food from the disposal) and into your DW.
The fix for this is simple. Remove the drain hose from the plumbing under the sink. Then form an upside down "U" with the drain hose and firmly attach it to a stationary object under there (I always use the water supply plumbing to the faucet for this...) using whatever you have, good duct tape, wire ties, etc. Then reconnect the end of the hose back to the plumbing and you're done! Job time= < 15 minutes.