Question about Miele 24 in. G646SC Plus Free-Standing Dishwasher
I have a Miele G646SC Plus dishwasher and the Drainage / inlet warning light has just come one. There is a small amount of water that will not drain away from the bottom of the dishwater. I have removed the filter at the bottom of the unit but cannot see any blockage there. Can you help? Thanks, Craig
I had the same problem a few days ago. I followed the instructions to clean the filter and check to see that the impeller was free to rotate in both directions. The problem persisted. After reading this thread, and a similar one on another site, I tried what mikeboerma suggested in "solution #3", and bingo, problem solved. The magic combination is to push and hold the on/off button and the start/stop button.
Posted on Mar 22, 2009
Mike from holland,
I know the answer ! And am very angry at a miele guy who came round for this same problem an year ago. Cost me over € 100,- or something. He fixed it then. But could ( or wouldn't) tell me what he did. He makes a living out of this. Sure he knows it. As a matter of fact, he didn't do anything worth mentioning.
Anyway. First offcourse clean the propellor. (see above) But then the software is still confused. And the light of the inlett/oulet keeps blinking red. So what I did was push two buttons at the same time. I can't recall which ones I pushed. So try different options. Let us know what the right combination is. But as a wonder the red light went out. It is working again.
So it has nothing to do with problems concerning waterflow. It is a software thing.
Posted on Nov 15, 2008
I have a Miele G692 SCI Plus which had a similar problem a while ago.
The inlet/drain light also comes on when there is water in the base pan. There is a float switch that also triggers this and over time if water has collected in the base pan the float switch can stick. Pull out the dishwasher and tilt it towards to back. If there is any water in the base pan it will come out. To be thorough, put the machine on it's back and remove the base pan (4 screws by the feet), the float switch is a circular plastic casing with a polystyrene float in it. It comes apart for servicing, the float can jam if there is any rubbish in the water.
Posted on Jan 30, 2009
You can remove the sump filters and get to the pump impeller.
Bail out all the water, remove all the sump filters. You will see a wire clip in the sump, flick over the clip ( i think it's to the right) and grab the impeller cover and pull it upwards. There you will expose the pump impeller. Make sure there is no debris in there and the impeller turns freely. Stilk same problem, then make sure the main circulation motor runs. This you willl hear when the machine starts to fill. This is after the drain cycle. All Miele dishwashers drain first as soon as you press the start button in a wash programme.
Posted on Feb 10, 2008
It could be a clogged in the drain line. Often the problem is at the point where the drain line attaches to the garbage disposer or household drain line. You should remove this line and clear it form any debris in the hose or the hose connection. Be sure to reattach the hose before starting the dishwasher again. Good luck!
Posted on Sep 16, 2007
I had a Miele G646SC Plus With inlet / drain light coming on and no water coming into unit. All the above solutions tried. As with solution #6 removed the undertray to check the water leak protection float and microswitch. No water in pan,but found polystyrene float had distorted and activated the switch.I removed the float and sandpapered it flat.Switch function now operates and dishwasher is working fine. Hope this will be of help to someone
Posted on Aug 24, 2009
This is actually for a Miele g858 incognito, but the problem sounds exactly the same. It stared out with a simple small leak on the bottom door seal. i ordered a new one but when it arrived from Miele [2 days] the dishwasher was giving me the drain/intake flash. in my case 4 short flashed an on long flash. i went into diagnostic mode and found the fault code to be #6 which is not enough counts on intake sensor. So i cleaned th intake filter and all of the other filters but no luck. one thing i noticed was that when i closed the door with no program selected the drain motor just ran. This combined with solution "#7 water in the drain pan" made me go down this path. the service manual says that if the drain pan float is in the up position then power is routed to the drain pump when the door is closed. This would explain why the drain pump would run even when no program was selected. sure enough pulled it out and the drain pan was full of water. cleaned the pan and the float. everything i good to go now except that the bottom door seal the Miele sent has a **** ever 6" or so and it leaks. i will have to call them Monday and talk to them about it.
on the incognito series you clear the fault codes by turning off the dishwasher then pressing and holding down buttons 1&2 while turning on the dishwasher. press button 6 twice. flashing button 6 indicates deleted fault codes.
Posted on May 22, 2010
Miele g646 sc plus dishwasher the inlet/drain light stays on cant get rid of
Posted on Jul 24, 2009
I was called out for this very problem today. As a plumber, I found that the inlet water pipe was mounted vertically, I removed the straight through valve and fitted an elbow type so that the inlet sensor would sit horizontally - after weeks of failing in seconds, it completed it's cycle whilst I fixed a radiator problem elsewhere!
Posted on Oct 21, 2008
I'm not too sure if this is chicken or egg but I did try to "double button hold" suggested above & didn't get any indication to suggest that a system had reset. So I just turned the rotating dial to the "Stop" position & got a green light!
The fact that I only got that after cleanning the filter & trying the button solution makes it a bit difficult to know what actually fixed the problem!
Posted on Feb 04, 2013
Turn power off and count to 10.
Hold down Top Solo and start/stop button and push power back on.
You can select all programs now by multiple presses of the start/stop button.
Clean impeller on pump then I found filling up the machine with water for a while then a long drain cleaned everything without stripping out pipes.
Posted on Nov 09, 2009
Hi everyone, I had this problem with my G646 SC over the weekend.
I tried cleaning the drain filter, freeing up the circulation impeller, and doing the reset with the control buttons.
The machine was draining OK, (drains first when you start the programme) and filling with water.
Then I found a thread online suggesting clean the inlet filter, at the end of the inlet hose where it attaches to the water supply. I didn't even know there was one!
There was grit or sand in there, not much but obviously enough to stop the machine filling with the required amount of water to start the programme.
The machine is back to working order. By the way, it's around 19 years old
So it's worth trying this before taking panels off and looking for other solutions.
Here's a video of how to clean the filter.
Posted on Jun 16, 2020
Miele GC 656 SC plus
between drain light comes on at end of any program, checked al the usual
kinks in drain pipe / filters/ free movement of impeller/polystyrene float etc
when I put the machine on its side a small amount of water runs out from somewhere? and after standing back any further program completes fully, but here's the problem every time on the second program run the between drain light comes on again????
regarding the button pushing I have a problem I bought this unit from a friend who brought it to Australia from France the lettering on the buttons is in French and no sequence of button pushing has worked ?
can anyone help?????
Posted on May 18, 2014
Thanks to all the solutions above, I have 962 , it stopped working properly and kept sticking half way through the program. I thought it was the controller at first as I had needed to change that on a previous dishwasher. I cleaned everything I could, took the front off to check for faults but it all looked good. Checked all pipes. The fault continued. I was about to give up and call an expert when I spotted the post about the polystyrene "float" underneath the machine. I took the 4 screws off to reveal the inerds of the mchine. The so called float is a piece of polystyrene in a plastic casing which is not within the sump of the machine but sits beneath it. I inspected it and it seemed fine so put it all back together, put the base plate back on and tried the machine again. It works!!!! Not sure what I did but it works!!! Thanks all.
Posted on Mar 11, 2013
I tried all these things and still no joy - so I plugged my dishwasher onto my shower water pump and bingo! The problem was not enough water pressure from mains water source!
Posted on Nov 08, 2011
I was suffering the dreaded inlet light coming on. Checked out everything but no solution till I came on here. I removed the bottom panel and cleaned off some unsavoury thickish water deposit from base and I cleaned float. I reconnected machine and held onto the start and on/off buttons till all 3 red lights suddenly came on steady and (I assume) the software re-set. I then turned off and turned machine back on and it is again a very happy machine! (As indeed I am) My machine is a G646SC+ Together we have just performed a pre-wash and we both gleaming lol
Posted on Jul 21, 2010
I had this problem, and cleaned the inlet and outlet filters, made sure the pump impeller spun freely, and tried all combinations of button presses. Resolved to try to make sure the outlet pipe was clear, I pulled the machine out from its 'semi-fitted' position, and found that a kink had developed in the outlet pipe restricting flow (it had been ok for the last five years!). Having straightened out and re-routed the pipe, the drain/inlet light now stays out, and the dishwasher works perfectly again!
Posted on Dec 31, 2009
After pushing the silver button inside the lower chamber, I realised that it wasn\'t a button at all. At this point there was no way to get it back via messing around in the junk in the deep, although I did try. It had a seal around the area it had dropped into, his lead me to believe it was a plug.
Searching google, I found your solutions and flipped the ol\' G645 on it\'s back after detaching the water inlet (turn the water supply off by moving the handle to the horizontal position) and the drainage outlet. At this point there was plenty of drainage water leaking over the kitchen floor, so I procured some towels, a mop and some plastic bags, allowing me to continue with the second phase of the break and repair scenario.
I called for a member of the family to help to place the machine on its front, ensuring to remove the knob that sticks out and placing a drill box as a landing pad for the unit\'s bland but functional fascia.
Unscrewed the four screws on the bottom of the machine using an impact driver, the metal case fell to ground, revealing the innards of the clockwork marvel.
Then... I saw it, right away, we already knew it wasn\'t a button, and now I could also see in it\'s design, plugging wasn\'t it\'s primary function. I nearly fainted...
....Open your eyes....
A stream of multi coloured electrical wires fired in all directions from the silver cylindrical anomaly like a pure white full spectrum laser beam hitting a prism in a bright summer\'s storm on rainbow\'s day 1974.
It was a sensor of course, designed for the curious, a trap so smart, to cause a lesson in dishwasher repair. Rolled into one tiny, shiny, cylindrical package, seductively labelled \'press me\'.
I suggest, if you have other things to do, then don\'t, otherwise you\'ll end up reading this text.
Check the area for water, and clean any thing up that looks like it should be dry, even if it\'s a liquid. Finally perform the previous steps in reverse, ensuring to skip the steps where the sensor is involved.
Power up, no warning lights, performing a full intense cycle when empty will confirm proof of any leakage.
Cross your fingers... Ready... Steady.... Go!
That\'s right you can do it too. Except don\'t.
The End (Hopefully)
Posted on Feb 28, 2014
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