How do i clean out the pump trap on a bosch series 300. i have the front cover off and the plug open, but now there is another white cover that i cant get off.

SOURCE: Bosch series 300 washer: E:04 error; how to remove pump cover

You can get that cover off, by prying it up at the bottom and spinning the thing clockwise. then there is a large hand turnable plug inside.

Once you turn it water will start leaking out, you'll have to get in and pull out the crud from the pump screen there to clear the jam. Good luck!

SOURCE: My Bosch 100 series won't drain or spin. How do I

If you experience a problem where the washer does not drain properly or the drain pump makes excessive noise, here’s the information you need to check the drain pump:

Symptom: PUMP IS RUNNING, BUT NOT DRAINING PROPERLY.

1. Unplug the washer while servicing inside the unit.
2. Remove the lower kick panel under the door by removing the three 7mm screws under the bottom edge of the panel. HINT: Use a couple of blocks of wood to prop up the front feet of the washer to gain better access to the screws. Once the screws are removed the panel should drop down, and then pull off. If the panel becomes stuck, a slight tap on either side will dislodge it.
3. Locate the drain pump. It will be located directly under the wash tub (it is the only pump this washer has).
4. There is an access removal cover on the pump that can be removed to clean out the trap. BEFORE doing this, it is strongly recommended that you remove all residual water from the wash tub & drain line or you will have about a gallon or so inside your washer and on the floor to clean up.
5. Here’s a helpful way of quickly removing the residual water. If you own a wet/dry shop vac, remove the drain hose from the standpipe at the wall and pull a vacuum with the shop vac. This will empty the wash tub, pump and drain lines. If you don’t own a shop vac, grab a bunch of old towels and open the access on the pump slowly so that it comes out at a trickle. Allow the towels to soak up the majority of the water. Close the access and stop the water if you need to get additional towels.
6. Open the pump access and remove once you have all the water drained. Check the drain pump for foreign objects and debris. Check the pump impeller and make sure there’s nothing caught in it. Items as small as toothpicks or cotton swabs have been known to stop this pump from working.
7. Clean out the pump thoroughly and reinstall the access cover. Make sure the cover is snug, but do not over tighten.
8. Place the drain hose back in the standpipe (IMPORTANT – DO NOT FORGET!).
9. With the bottom panel still off, plug the washer back in and select the following on the operator console – DRAIN SPIN, NO SPIN, and then press any button under OPTIONS 4 times (it must be the same button). “C00” will show on the console display as the washer begins diagnostics mode.
10. Check the drain pump for leaks as the washer fills. The pump is gravity filled and will hold water even it is not pumping. Allow washer to run through diagnostics until it begins the wash tub tumble cycle.
11. At this point, you can stop the diagnostics procedure by pressing PAUSE/CANCEL 2 times. The drain pump energizes and the washer will begin to drain.
12. If the drain pump works normal and there are no leaks detected, reinstall the bottom panel and tighten screws.


NOTE: It is normal to have residual water left inside the wash tub under the wash basket. This is why it is important to leave the door ajar when not in use so this water does not become sour.
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SOURCE: i have an error 13

Hi from retired Englishman in SW France,
I'm presuming that is the actual filter itself. Had the same problem with our Bosch, cap would not even turn!
Suggestions-
pour anticalc/limescale fluid into any gap there is around the cap. Empty the machine and you can switch it off providing the door is open! Then pour the contents of at least 2 sachets of proprietary anticalc powder/liquid into the drum direct together with a kettle full of boiling water. Leave overnight at the very least. The following day run just a spin cycle as then there will be no water diluting the mix. This mix will go through the filter and motor and is likely to help release the filter/cap. If you feel like it, do the overnight again. If nothing else it will ensure that the heater element is clean!
I had to spend a couple of hours gently turning the cap back and forth until it finally released its hold- but the filter did not remain attached to the cap by its rubber ring. More patience, anticalc fluid and all was revealed!
I now run an anticalc clean regularly............which reminds me..............!
Good luck
John C

SOURCE: bosch 300 washer: water not pumping

Hello,

A lot of times what i have found when servicing that issue is when the pump filter is clear what i have found is that something is stuck in the outer tub where the water is supposed to flow into the pump, so the water never even flows into the pump.you could check that by removing the hose that feeds the pump from the outer tub and check for blockage there

I hope this helps,
Gene

SOURCE: E04 error code, washer wont drain, water left in tub on a Bosch Nexxt 300 series

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