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I have a Bosch Nexxt 300 series washer (Model wfmc2201uc/16) and I'm getting a lot of E13 codes, which deals with the pump and drainage. I cleaned out the little trap in front of the pump, which usually helps a little. But I noticed that the drain hose off the back has a LOT of mineral/crud build up inside.

Would this be enough to stop the machine from draining? I'm going to replace it since it's only $10, but the internal hose is no longer being manufactured. It's part #665711 but I can't find one anywhere. Any ideas where to get one? I haven't opened it up yet, but I'm guessing it would also have a lot of buildup.

While I'm at it, I'm going to replace the inlet hoses since I never have. Is there any reason to buy the OEM parts? They go for about $25 each, but HD has a pair for $20. Look the same, one end straight, one end 90 degrees.

Thanks for the help!
 

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If you can get the internal hose off without destroying it you can try soaking it in vinegar. It might take a day or so of soaking but that sometimes dissolves mineral build up. Another thing you can try is try to find a flexible bottle or lab brush and try to get the crud out. I'm not sure what to try if you can't salvage that hose.
 

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If you can get the internal hose off without destroying it you can try soaking it in vinegar. It might take a day or so of soaking but that sometimes dissolves mineral build up. Another thing you can try is try to find a flexible bottle or lab brush and try to get the crud out. I'm not sure what to try if you can't salvage that hose.

This is a good idea. Maybe even try some CLR (calcium, lime, rust). I've used that before and it works well.
 

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Discussion Starter #5
If you can get the internal hose off without destroying it you can try soaking it in vinegar. It might take a day or so of soaking but that sometimes dissolves mineral build up. Another thing you can try is try to find a flexible bottle or lab brush and try to get the crud out. I'm not sure what to try if you can't salvage that hose.
Thanks, I'll give that a shot! I ended up taking off the back panel and looking at everything. The external drain hose wasn't as bad as I thought, but mainly the build up is around the elbow which makes sense. Can't see the internal hose too much but might try and disconnect it to clean it out, although that will take some more work to get it off of the pump. Can't really see what the connector is on top and don't want to force anything.

Machine went right back to giving me the E13 code. Hope that doesn't mean the pump is shot. We can still use it, just lots of turning it off and on, re-running the drain cycle, etc.

Thanks!
 

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I used to have that same washer and used to get the same code every once in a while.

All troubleshooting stuff I read said the pump was the most likely cause. I didn't want to believe it since the pump still worked. The error code started happening more frequently and I tried different things until finally giving up and getting a new pump.

This fixed it. I think the problem was that the bearings were going bad in the original pump. Then a couple of years later my main drum bearings started making grinding noises.

Just like you found, parts are starting to become hard to find for this machine. The assembly that included the drum bearings that I needed is no longer available, so now I am the proud owner of a new Maytag front loader.

Anyways, I hope this info helps you out. The replacement pump I got was an off brand (Supco) that actually seems to be better than the OEM. It had slightly more horsepower and included a little rubber hose built into it to make draining easier if you ever have to open it up again.

Good luck!
 
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