Question about Bosch 24 in. SHU53 Built-in Dishwasher

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2H displayed and pump runs nothing else happens

Replace the control module got stuck on 1 for hours and then the next time tried to run dishwasher stuck on 2h for very long time and pump ran for over thirty minutes before shut off unit. Water never went to clean mode. Pump malfunction?

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  • donna_pi Dec 27, 2008

    This sounds like the same problem that I am having. No matter what cycle I push it goes to 2Hr delay and we can hear the pump running. The dishes are not clean and the water does not seem to be getting really hot....

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I, along with many others online, are experiencing the same problem. The bottom line is the control panel needs to be replaced. Beware, though, that the replacement panel may also be bad as I've seen many reports that they are poorly designed and Bosch isn't doing anything about it.
There are 2 things I'd like to clarify...
1) The display "2H" is an error code which, according to Bosch, indicates service is needed on the unit. The code is different from "2h" (note the lower-case letter h), which is what would display when the delay start button is pushed.
2) The number 1 showing at the "end" of the cycle does NOT mean 1 minute left. It is a 2nd error code indicating the unit has "timed out."

I'm waiting to have my control panel replaced a second time. The first repairman from Sears replaced the control panel with a refurbished one, but the unit still showed 2H. He was about to leave when I told him the problem wasn't fixed. He tried to tell me that the 2H meant the cycle would be longer than 2 hours because my water temperature was too low (it is at 120 degrees, the proper temp per Bosch). He said I needed to increase my water temp or else live with the fact that the dishwasher would take a long time to run through the cycle. I asked him to call Bosch and he said they wouldn't talk to him (he really had an attitude). I asked for a receipt (on which he commented the "dw works fine") and, after he left, I called Sears back to get a "senior" technician out to fix it. They ordered another (new) control panel for me and they'll be out this Friday to (try) to repare the unit. Hoping this time it will work.

Posted on Jul 29, 2009

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I would check the buttons on the control they may stuck. check the delay button..

Posted on Dec 21, 2008

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1 Answer

Delayed start says H2 won't stop running...please advise!


Hello, Welcome to FixYa. On Bosch dishwashers with display such as yours the 2H indicates the cycle wash time is exceeding two hours and it should not. This is typical of a heating error so the cause must be determined. The question must be asked, is it a heater, a flow switch, an NTC or the actual control ? I can also tell you most times it is the control. I am presently on my iphone and as such don't have access to my files but if you check out my profile under dishwashers you will find a detailed explaination of how the check. Look specifically for units that show "1" and run & run. You will also find a link to the Bosch website on info regarding a recall which relates directly to your model and said issue. Otherwise I will post more info for you in the AM . Regards, Macmarkus :)

Mar 07, 2011 | Bosch SHU5316UC Dishwasher

1 Answer

Bosch Dishwasher, SHU 5300 - Cycle stuck on 2H cycle


yes it needs a new control and its pretty easy to replace..

Dec 13, 2007 | Bosch 24 in. SHU43 Built-in Dishwasher

1 Answer

Stays on 2H when turning on


Hi welcome to Fixya. You're right what you're describing is not delay start, but rather a problem with one of the heating component's and most likely the heater relay on the electronic control. The wash cycle has exceeded two hours without a temperature increase of the water and therefore the control "thinks" something is wrong. Whether there is or isn't remains to be seen. Likely if you let the unit operate from that point of displaying "2H" it will run and run for several hours and not heat the water. You can confirm this by pulling out the control and visually inspecting the printed circuit side of the control. Look for a burnt solder on the opposite side of the largest relay ( black or orange retangular box ). That will confirm the heater relay is faulty and the control either needs to be replaced or repaired if you are capable of resoldering the board. Let me know what you find and I'll try and assist you further if you require any. Thanks for visiting "fixya" today and good luck moving forward. macmarkus :)

Jun 27, 2010 | Bosch 24 in. SHU53 Built-in Dishwasher

2 Answers

I Have a Bosch SHU5312/u11 that is showing 2H on


Hi,

To answer your first question, in a word Yes. To address the second question, Yes. The control module is easy to replace but the better news is it is also repairable, ( you can make an educated decision when I'm through on whether to replace or repair, that is obviously up to you ) but I'd like to enlighten you if you'll allow on what to look for, and why.

The issue with your Bosch dishwasher likely lye`s within`the electronic timer/control, specifically the heater relay solder joint. ( a faulty flow switch, ntc or heater can also cause this, but not very probable ). This is why it runs forever unless pressing the two buttons for "cancel". It has nothing to do with a "delay". The 2H stands for two hours and is actually the estimated time the unit took to complete it's previous cycle based on data to the control gathered and stored in memory...it is not "actual" time, it never is on Bosch. there are far too many variables to be "actual" time and since it only goes to two hours in the display, that's what is displayed even if it runs for four hours.

To repair your unit It will require you to remove the control from the unit and then remove the control from it`s plastic housing and look for a burnt solder contact on the printed circuit board. This will be one of the pins from the heater relay, hence the unit sit`s at 2H ( because it can`t heat to advance or until canceled ) trying to heat the water.

**Further to this, if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...although Bosch recommend`s replacing the control and I don`t pretend to speak on there behalf nor do I profess to know better. This is just my experience (it work`s) and my opinion (why buy new if one can repair ?)**

**Please disconnect the power before attempting any service to the dishwasher. If you do not feel comfortable attempting this service, call a local pro, preferably one familiar with Bosch/Thermador/Gaggenau, to service your machine.**

Hope this answer`s your question's, let me know if I can assist you further. Thank`s for visiting "fixya" for your repair inquiries. Please take a moment and rate this solution to it's helpfulness to you and leave a testimony if you're satisfied.

Good luck.

macmarkus :)

Apr 29, 2010 | Bosch 24 in. SHU53 Built-in Dishwasher

1 Answer

My bosch dishwasher control panel displays 0H on the time delay. When I start it the OH go to 2H. It then starts running and does not stop. The cycle minutes don't display. It's model number SHU5302UC...


check to see if your unit has a recall on it because if it does you will get a free control module from bosch.
your problem is the control module. thermador .com is the site to lookup. gaggenau,bosch,thermador they are the same ccompany. let me know if this helps by sending a 4 thumbs up post

Feb 27, 2010 | Bosch 24 in. SHU53 Built-in Dishwasher

1 Answer

2H accures in digital read out. NO Cycles start, just a humming


Do you own an LG LDF6810ST dishwasher? If not, please reply with the manufacturer name, model and serial number.
Are you saying that the display that normally shows the time is displaying an code of 2H? On an LG, that means 2 Hours, (120 minutes) and is not an error code.
On an LG with a symptom like this, I would arrage to replace the main processor card (PCB). You would be getting an error message if the motor (wash or drain) had failed.

Mar 30, 2009 | LG LDF6810ST Stainless Steel Built-in...

1 Answer

Error code 2H


The control panel needs to be replaced (indicated by the "2H" error code displayed at the start of the cycle).
BTW - The number 1 displayed at the end of the cycle indicates the cycle has timed out (i.e., it doesn't mean 1 minute remaining). Hence the continued running of the unit. Until you replace the control panel, you'll have to manually cancel the cycle at this point.

Oct 08, 2008 | Bosch 24 in. SHU53 Built-in Dishwasher

2 Answers

Problem with Bosch built-in Dishwasher Model SHU6806UC


I had the same problem and just today replaced the control board module. Purchased the control module online and installed in myself. Was not that difficult. undo the screws (torx screw driver needed) unhook the connections to the board and label all. Pull the board out and open, found burned connectors. Now works like a dream.

May 27, 2008 | Bosch 24 in. SHU6802UC / SHU6806UC...

2 Answers

Machine runs for 4 hrs and 2H shows


Problem machine ,replace the control electric

May 21, 2008 | Bosch 24 in. SHU5305UC Built-in Dishwasher

3 Answers

Prolonged washer cycle time


Hi! I'm not familiar with this model, but it sounds to me like there is not a problem! If you set the delay time to 0H, switch off the unit at the main switch, then switch back on. If there is still a 2H displayed, it means that the PROGRAM that you have selected will take 2hours! This is fairly common for the Bosch units on the 50 - 65degC cycles...some models have a "reduced washing time" button - it looks similar to the "delay" symbol, but once pressed, it reduces the washing time by almost half (cuts on rinse cycles) If your model does not have a reduced time button, select a shorter cycle (35/40/50eco), and see if the time is less. Remember that the latest dishwashers are engineered to be more energy efficient and water wise, so they had to lengthen the wash cycles in order to get good wash results! Hope this helps! C.

Jun 24, 2007 | Bosch SHU5307UC Built-in Dishwasher

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