How to Troubleshoot & Replace Bosch AP4339847 / 00645149 Drain Hose

Ordered a new plastic drain pipe for the dishwasher and replaced the one with holes. Ground shipping got it to my house the next day - outstanding. 

I replaced the hose in about 30 minutes. Easy as pie. I got my part in less than 24 hours and appliance parts pros saved me from being the Thanksgiving dish washer! 

We replaced the drain hose. 

Replaced Sump Drain Hose. 

Replacement part purchased from appliancepartspros. 

Replaced hose 

Changed hose. AppliancePartsPros U-tube video was very helpful. 

Dishwasher drain was a cobbled-together nightmare under the sink, and it seems that my Ascenta just didn't like it. Kept throwing E24 error and would stop running. A bad repair call ended up with the internal drain hose smashed and pinched, which didn't help. Manually checked the pump and all internal plumbing, didn't find any other obstructions. I installed an air gap in my sink, and a new regular 6-foot external drainage hose between the internal hose (on the dishwasher) and the air gap. Dishwasher runs like a champ now, and it seems like the flow into the drain is much faster and easier than it was before. If you have access to the repair manual, this part is what the manual calls the "internal drain hose". Perfect replacement on my Bosch Ascenta 

One quick websearch to the AppliancePartsPros, new part arrived in three days, stripped out old part, threaded in new, job done. Total time <1 minute of actual work. Service is outstanding, highly recommended.