Question about Bush Dishwashers
How to fix
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Posted on Jan 02, 2017
SOURCE: E4 error on new conia dishwasher
I have a Maytag MJD3000AAW dishwasher and it was showing E4 during a cycle. On checking the pressure tube from the outlet of the dishwasher to the nozzle on the u tube under the sink, I fould that the dishwasher was not draining properly as a kink have developed in the tube where it curved back to the nozzle. I slid the pressure tube into a long elbow which stopped the tube from pinching. Problem solved.
Posted on Nov 02, 2008
The solution below applies to a Powerpoint dishwasher but is probably a generic one for E4 problems - given that brandnames are frequently badges of convenience for made-in-china products.
The problems cause and solution goes as follows:
Any water that leaks (for whatever reason) from the internals of the machine finds it's way down to the lowest point of the machine - down under the washzone and into the area where all the workings of the machine are located. There's a sensor there (a polystyrene float operated switch in fact) that detects this water - causing the machine to empty and go into error 4 (E4).
The solution will depend on the nature of the leak. If it's due to one of the various seals on the floor of the washer leaking or there is some problem with water level controls then that will have to be repaired first - otherwise you'll keep on getting the error. In my case however, the "leak" was actually a design feature of the machine and is easily rectified.
Open the dishwasher door fully and look at the floor of the machine where it meets the bottom of the door. You'll see a couple of plastic tubes protruding from the floor by about 12mm - one to the left and one to the right. Their function appears to be to act as an overflow if the water level in the machine gets too high (for whatever reason). This excess water is directed down these tubes and into the bottom of the machine where it can be detected - rather than letting it spill out onto your expensive floor. The weakness in this system is that it only takes a soup spoon of water to produce the error - something which might accidently happen during the course of a normal wash.
1) Leave the machine idle for a few days until the water evaporates. The sensor switch will reset and the error will be gone when you switch on.
For either of the following solutions, turn off the power to the machine by unplugging it or tripping the relevant switch at your fuse board
The stainless steel washcabinet is only slightly thicker than aluminium kitchen foil. Handle the machine gently and never force it otherwise you're in danger of distorting the cabinet.
2) Tilt the machine right the way forward so that the water leaves the area of the sensor. It'll flow back again once you level the machine but in wetting the floor area of the machine, the level at the sensor will be a little lower than before - permitting the sensor to reset. Switch on and the problem should be gone.
3) Pull the machine out from the built in unit to gain access to the right hand panel. Remove it (just a lot of philips screws holding it on) and you can just about see the polystyrene float (near the front) and the slightly depressed area underneath it - in which the water accumulates. You can poke a stick in with some tissue taped to it to mop up the water. Be careful not to disturb or damage the float.
I've had this problem occur twice in as many years. If it keeps on occurring then you likely have a genuine problem with water level controls during filling or a leaking internal seal dripping water into the bottom of the machine.
Don't be tempted to block the overflow tubes - a genuine overflow could destroy your kitchen!
Posted on Feb 21, 2009
I have had the same problem as most of you. I seem to have fixed it by
1. Bail out all the water from the inside
2. Remove the filter and 2 x mesh pieces.
3. Continue to bail out the water from the filter well.
4. You will probably find pieces of food or fat/debris in the bottom of the well. Remove these.
5. Tilt back the dishwasher at 45 degrees for 30 mins or so to drain and dry the flood sensor.
6. Boil a kettle and pour it down the well. Immediately put the dish washer on a eco wash (no tablets or anything) with half load (ie half water) and this will ease the water pump.
7. Let the dishwasher run its cycle.
8. Clean the filter again and the filter well.
It sounds quite long winded but with a £250 item you need to take care of it. Make sure you rinse most plates before loading in the future.
Hope this helps!!!
Posted on Mar 01, 2009
Water is not to top sensor in alotted time.
Top sensor is in right rear corner, and is the upper of the two. Check the connector to the probe on the outside at the back. (sometimes gets wet fro vacuum breaker leaking when dirty or low flow pressure. Machine needs 20 psi flow rate
Posted on Aug 14, 2009
Remove all dish trays from washer, unscrew and remove lid off salt softner, tip machine on side untill all water drains from the salt softner, replace all trays and softner lid and machine should work again.
Posted on Apr 18, 2010
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