Question about Bosch Nexxt Premium WFMC6400UC Front Load Washer

2 Answers

Error 4 in bosch nexxt washer


we set up our drainage in our washer through a 3/4 hose that drains directly to our main abs drain out to the septic system. the hose rises to about 7 feet above the floor, then 10 feet over to a wall and then down 1 foot to the abs drain. every thing was going fine for a year or so until we got some error 4 codes.

I've checked the septic line (drains fine), and cleaned out the 3/4 hose and the grey drainage hose that attaches to it...they were pretty blocked by soap.but got them cleaned out.....we are still getting the error 4 code though my wife claims it only happens on the 2+ load of the day.

we are wayyy out in the middle of nowhere, and getting a bosch repairman out here is expensive...any help, including up to replacing of computers/sensors would be appriciated.



Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers
Re: error 4 in bosch nexxt washer

After browing a little more on this forum, I found the solution to my problem.
There was an hairpin stock in the rotating device that is located behind the front plastic cover.

Thank this website was very useful to me. Hope it can help someone else too!

Posted on Jan 20, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert whose answer got voted for 20 times.

  • Expert
  • 139 Answers
Re: error 4 in bosch nexxt washer

The problem here is that the waste pipe is rising to high up above the floor,, the top limit should be machine height ideally. The pressure built up by the water is not manageble by the drain pump.. in reality the waste water is acting as a blockage hope this helps

any questions dont hesitate to ask im here to help cheers got to go

Posted on Jan 17, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Bosch nexxt 3200 washer

The clog may have gotten into the line to the septic tank.

Dec 15, 2013 | Washing Machines

1 Answer

Bosch Nexxt Premium Washing Machine Drainage Blocked. Cleaned out impeller still not working.

You need to check the drain pump externally to see if the pumping is good Also remove the drain hose clamps and remove the drain hose flushing to clear off all dirt. Now test using power to see if this works and can be simulated. When refitting, the hose must be tightened properly. If the pump/valve does not work even with power then it must be replaced. If there is intermittent power to the drain valve/pump then the program controller unit is a suspect.

Cleaning a pump:

Finally the washer must be placed with a tilt- use a spirit level- so that all water will drain to the outlet port and thereby there is no residual water remaining.

Replacing the pump on a Bosch machine, please check this link for tips:

Jul 02, 2012 | Bosch Nexxt Premium WFMC6400UC Front Load...

1 Answer

Error code E:13 on my 500 plus series washer

The E13 error code on your Bosch washer refer to a drainage problem or the pump time might have been exceeded
Either it might be due to a clogged pump, improper detergent being used, ( must use "HE" detergent ) hence suds not allowing a proper drain cycle. You should clean water drainage pipe and/or drain hose. Turn selector to off and restart 'drain, program or, on 500 plus machines, the 'refresh' program. It also says this is caused by using too much detergent. Bosch recommends using half of what the manufacturer recommends when using HE detergents. They don't recommend regular detergents. First run the short wash or refresh cycle without detergent and hopefully your lines will clear.

Thank you !!

May 25, 2010 | Bosch 3.81 cu ft WFMC530 1UC Nexxt 500...

1 Answer

Drainage blocked

Here is a tip that I wrote a bout front load washer spinning and draining problems...

Front Load Washing Machine2_bing.gif not draining and or not spinning


May 16, 2010 | Bosch Nexxt Premium WFMC6400UC Front Load...

1 Answer

Bosch front load washer display says drainage blocked. What do i do?I already checked the exterior drainage hose

look for a front plate lower right corner / remove plate and inside is 3 in drain cleanout . ccw will remove and clean basket . cw to reinstall . should correct problem. mm

Dec 03, 2009 | Bosch Nexxt Premium WFMC6400UC Front Load...

1 Answer

I have Bosch Nexxt 500 Washer. It stops draining and flashes E04 error. Any idea what is causing it or how to troubleshoot and repair?

The error indicates that the machine has taken too long to drain the water. Do the following.

  1. Switch off the machine and disconnect the mains power.
  2. Remove the access panel on the lower right front of the machine.
  3. Remove the filter and make sure that the filter is not blocked and is clean and clear of all debris. Clean as required.
4. Proceed by checking the drain hose for proper connection and kinks and make sure that it is not blocked.
5. Also check that the main waste drain pipe, if you use one, is not blocked and clean if required.
6. Reconnect the power and switch the machine on.
If the problem persists then do the following.
7. Switch off the machine and disconnect the mains power.
8. Check the electrical connections at the pump and make sure it is operational.
9. Remove the connecting hoses, and expect water to drain out and make sure the pipes are not blocked with debris or any object blockage.
10. Makes sure the pump appears clear and that the impeller looks in good condition.
11. Reconnect the hoses and then reconnect power and switch the machine on.
12. If problem has not been corrected, then remove the pump and check that the drive coupling to the motor is OK and that the motor turns OK. If all is well then replace the pump.

Oct 20, 2009 | Bosch Nexxt 500 WFMC3301 Front Load Washer

1 Answer

Cannot get to drain washer if the hose needs to go up into ceiling to get to septic pipes

usually the outlet and the pump is capable of pumping out at the maximum high of 3-4 feet from the drain. if any higher than that, you need to add a pump in line.

Oct 28, 2008 | Bosch Axxis WFL 2060 Front Load Washer

1 Answer

Error code

hi sir one of these problem will be there 1 - No cold fill. Check that the taps are on or if the drain hoses are kinked. 
2 - No hot fill.The ambient temperature is likely to be below freezing possibly due to the pipes being frozen. Also check that the taps are on or if the drain hoses are kinked. 
3 - No mixed fill. It is likely that the water is not turned on at the taps. 
4 - Check the water supply, inlet valve and hot and cold hose connections. 
4 - A fault with the water heating has occurred. 
5 - Water is not being pumped out and a flood condition could occur. Check that the drainage hose is raised to the recommended minimum height and that the pipe is not blocked. 
6 - Extremely high water level Disconnect or turn off the water supply and ensure that the water level does not rise any more. Then book a service engineer. 
7 - Door not closed properly. Close door firmly at the 3 o'clock position. 
E20/1 - The thermistor resistance has drifted or the temperature scanning sequence is incorrect. The ambient temperature could be below freezing. 
thank u............

Sep 11, 2008 | Bosch Nexxt Premium WFMC6400UC Front Load...

2 Answers

My Bosch Nexxt Essence front load washer is making a knocking and squeaking noise during the whole spin cycle. It sounds like it's coming from the drum mounts - what should we do?

My Bosch Nexxt Essence front load washer will not drain. I changed the lint filter, and insured that the drainage hose was free of debris. I removed all the wet clothes, wrung out the excess water, and redistributed the clothes. Still, no draining or spinning. Initially there was a humming sound, but now there is no sound at all when I try to restart the drain or spin cycles. All the lights are appropriately "on".

Apr 13, 2008 | Bosch Washing Machines

Not finding what you are looking for?
Bosch Nexxt Premium WFMC6400UC Front Load Washer Logo

870 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bosch Washing Machines Experts

Tim Whalen

Level 3 Expert

3056 Answers

Richard Roth
Richard Roth

Level 3 Expert

9472 Answers


Level 3 Expert

57068 Answers

Are you a Bosch Washing Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides