[SOLVED] I'm looking for Bosch SMU86M85DE38 service manual or maintenance guide (free) - Dishwasher Forum

Hi folks,
My Bosch SMU86M85DE38 dishwasher has ceased functioning, and I’d like to fix the problem myself, so if anyone has a a repair guide or service manual for this unit, or can guide me, I’d really value it. When I try to start a wash, nothing happens: no lights, no water flow, and no sounds. It just quit mid-cycle yesterday. I’m looking for some assistance to resolve the issue. Please don't share the user manual, I already have it and it’s not helpful.
Thanks in advance for your help!

Welcome to the Dishwasher Repair Forum! I had a similar problem with my Bosch SMU86M85DE38 dishwasher a few weeks ago, and I discovered a detailed service manual on the internet. It features step-by-step instructions, electrical schematics, and diagnostic tips. Here’s the link, I discovered it on a blog on reddit :

>>> Bosch SMU86M85DE38 Dishwasher Service Manual & Schematics (PDF)

🙏 Rosalba and 5 other persons liked this post

@Calvin, Thank you very much! This is precisely what I was searching for! 👍👍👍

Hi, help needed please I also have a Bosch SMU86M85DE38 dishwasher, and I downloaded the service manual shared above. Could anyone clarify how to test the power supply and what components to test initially? I’m a bit overwhelmed by the wiring diagrams. Any advice would be great!

Start by checking the basics: 1. Power Supply: Use a multimeter to test the outlet and the terminal block where the power cord connects to the dishwasher. You should see around 120V (or 240V, depending on your model). 2. Door Switch: This is a common failure point. If the door isn’t fully closed or the switch is faulty, the dishwasher won’t start. Test the switch for continuity with a multimeter. 3. Thermal Fuse: If the dishwasher overheated, the thermal fuse might be blown. Check it for continuity as well.

Here are some additional resources and instructional videos:
- https://www.ifixit.com/Answers/View/229150/Loud+banging+during+spin-out+of+balance
- Check out comment #216: https://www.eevblog.com/thread/repair/miele-dishwasher-repair-suspicious-pressure-switch/?action=dlattach;attach=1965180;image

And here’s a helpful video to get you started. Skip to minute 5 for the troubleshooting steps: YouTube Video

I also downloaded the Bosch SMU86M85DE38 dishwasher maintenance guide from the link above. Couldn’t find it anywhere else without paying. Thank you a lot for providing it, you’re cool!

Hi, I’m experiencing trouble with my appliance too. I inspected the power supply, and the socket, evrything is fine, but there’s no voltage at the terminal block. According to the schematic in the pdf, I should have 120V there, right? How do I test the mainboard? Is my dishwasher totally dead? The fuse seem good, I tested it with a voltage meter. Any suggestions? 🤔

I believe my appliance has an electrical issue because it isn't starting. I’m not very experienced with repairs, but I’m willing to give it a shot. I have a multimeter and some simple equipment. Can anyone help me on where to begin? I’ve heard the control board, pump, or door switch could be the issue. Any suggestions would be helpful, can provide model number if required!

Avoid rushing into changing parts immediately. Depending on the problem, the method to diagnosing issues may vary. Sometimes, devices are recalled, and you can simply let the company handle everything. Does your dishwasher have problems with the screen, indicators, or makes noises? Start with the fundamentals by inspecting the power supply, latch, and mainboard. It’s important to move step by step instead of quickly replacing parts like the control board or motor. First, verify if the dishwasher is powered on. It’s as simple as that. Also, check the door switch and fuse. If you’re a complete beginner in dishwasher repair, it might be safer to call a repair shop to prevent causing more damage, even if it costs a little extra. They can easily identify the problem and find the broken part. Then, it’s your choice whether you decide to replace it yourself. (A piece of advice: always disconnect the dishwasher prior to trying to repair it).

I think I damaged my dishwasher thermal resistance while trying to replace the water valve. Now it doesn’t warm up at all while running. Is it possible I caused more issues? Something’s not working properly. I grabbed the Bosch SMU86M85DE38 maintenance guide guide hopefully it’ll assist me determine what went wrong. Fingers crossed...

This is my go-to checklist for diagnosing a faulty dishwasher: Electrical Supply: Verify the dishwasher is receiving power. Check the socket and terminal block too. Latch: Check for continuity. A faulty switch can stop the dishwasher from working. Thermal Fuse: Inspect if it’s damaged. Replace it if needed. Control Board: Inspect for obvious damage or loose connections. Motor and Pump: Test for continuity and confirm they’re functioning properly. For more detailed instructions, check out this link. : https://mybroadband.co.za/thread/threads/bosch-series-2-dishwasher-issue.1181664/post-29144058

Here’s what I found:

When the cycle is complete the dishes are still soaking wet and not clean. Bacteria and viruses cannot survive more than a few minutes on the surface of a copper mug. 9 litres Quick wash Yes 58 minutes Cutlery basket or tray Tray Adjustable upper rack Yes. We don t know enough about which types of faucets it can or can t work with to offer good guidance here. These pieces of paper can lodge in the drain of the dishwasher or stick on other dishes creating a messy clean up problem. Go bold with these dark paints in small rooms as recommended by a Benjamin Moore color expert. Our tester found the programmes easy to select and liked the time delay options. Many thanks from a fellow flake I was scratching my head staring at the hose just about to order a new pump piston. A high quality dishwasher not only saves you time and effort by handling the tedious task of washing dishes but also ensures your kitchenware is cleaned thoroughly and hygienically. I suggest you try the copper tubing remedy. The third rack can be adjusted to create room for tall items like a metal water bottle to be washed on the middle rack. If you live in a hard water area limescale can be particularly harmful on your appliance. Everything was left fairly dry and it s easy to use from programming to salt refilling and filter cleaning. Sturdy hinges won t allow it to move. Learn more about dishwasher maintenance at our How to Maintain Your Dishwasher page. The highly sought dishwasher also features four additional modes such as delay start half load sanitize and extra dry. It s best to thoroughly wash the air fryer with soap every time you use it just in case. So I continued living life as the designated dishwasher until this summer when I decided to break from routine and take up surfing. Its ability to dissolve well in cold water ensures clothes come out clean regardless of the temperature setting. Each cycle also has additional selectable options including 3D Wash Zone for heavily soiled items and a half wash option that reduces energy and water consumption. The dryer is over 15 years old at this point I d guess. It can even accommodate larger items like mixing bowls and casserole dishes with ease without the need to pre rinse. I guess I would start by using a dishwasher cleaner. I don t know what to look for next I can t afford a repair person right now and I don t know much about fixing these things. However this type of material is prone to scratching so make sure no other dishes or utensils are balancing against the pot. Fortunately for you we have a wide selection of replacement basket wheels within our excellent range of dishwasher parts on the eSpares website. You may be surprised to learn that many dishwashers have a light switch beside the garbage disposal light switch. Advice staff picks mythbusting and more. And still your dishes are coming out dirty and you don t know why. We rely on science to explain the why and how of cooking.

@Uwe, That doesn’t make much sense to me, but okay 😅