After putting some heavy soiled pans in it was fine. after we had done the pans we thought we would let it have a cycle with just a tablet in to clean the washer. after 10 mins the continuous beeping started and the code E4 came up. Help
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Re: continuous beeping and code E4 on display
"E4" code relates to the overflow detector There appears to be an
internal sump. Lean the machine back about 35-45 degrees to remove the
excess water from the dishwasher. It might be messy so be prepared. By
design the sump collects water from condensation i.e. (Cold outside
machine wall, hot inside machine wall) hence condensation builds up and
is suppose to and should evaporate in the right environment. Placement
and installation locations play into a big part of the design.
You will notice by observation just in the center there is a
polystyrene float. This is what activates the overflow switch which
throws the error code.
This problem is simple to fix, just take off your kitchen plinth and
turn off the dish washer power. then at the base of the dishwasher
there are 2 plastic clip access panels, take a blunt screw driver or
knive to help you ease out the plastic panel. once this is off, simple
take a dish cloth out mop out the water, particularly from the left
hand side as this is where the sensor is. Once dry (ish) replace the
panels and switch on - DONE! its that easy
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Sometimes during trasport it is possible that styrofoam float mechanicaly activated overflow microswitch. So, you should check complitely overflow system.
At any time, if overflow micro-switch act and keep for longer than 2 seconds, the E4 would occur. When E4 occurs, the drain pump will run until flowmeter keep motionless for 2 minutes (if the model with the pressure switch (83/63),drain pump would run till the pressure switch reset and continue draining for 60 seconds.) and all the other components will be stopped immediately. At the same time, the buzzer will alarm for 30 seconds and error 4 will be shown. Note: Priority level of E4 is the highest. E4 operation is valid after other error operations have done. When E4 operation has done, all the others are invalid.
Under the washer is a pan - with a sensor. If it gets any sort of water - it activates. You can remedy this issue by pulling out the dishwasher, and tilting it up to about a 45 degree angle to empty the catch pan.
it's generally not a good idea to put really greasy items in a dishwasher along with relatively clean items such as glassware and plates and cutlery, as most recent good quality dishwashers come with a soil sensor that ends the wash cycle once the dishes appear clean, and all the grease from your frying pan will cause the soil sensor to take longer to detect clean water.
If you, like me, had actually added water thinking that this would rinse the machine through... doh! you had inadvertantly made water fill the cavity at the bottom of the maching. This is situated behind the kick-board. There are 2 black plastic panels - if you remove these, (they just pop out) and sponge out the water that is activating the dip switch (there is a polystirene float) that activates the pump - this resolves the E4 error code.
Make sure you do it while the machine is off! The reason the base of the machine has filled with water may need further investigation, but mine was most definitely user error. Who'd of thought adding water to a dishwasher could have been so fatal! It nearly cost me £88 call out charge too after the helpline weren't able to help me.
If this is an asko dishwasher , most times this problem is caused by water getting into the base pan and setting off the float switch. Turn off the power and take the toe kick off, behind there is a pan runs under the motor and sump if there is water in it clean it out. that will take care of the problem. but you will need to watch and see if you can tell where the water came from sometimes on those unit its just from too much detergent