Dec 202012
 

Have a Bosch dishwasher that won’t drain? This could be a very common issue and also a very simply fix. If you press the second and fourth button at the same time, does the dishwasher drain the water? If not, you could have a pump, hose, or air gap issue.

On these particular dishwashers the engineers decided to use an auxiliary drain motor to drain the water. So these units have drain and wash motor. The drain motor is located on the left side of the sump. Continue reading »

Jan 152011
 

This is a very well known issue with Bosch dishwasher. Having repaired this issue myself over and over, I know this dishwasher and error well. Appliance repair companies have made thousands off just this repair alone.

Bosch dishwasher with the code 2H displayed in the digital read out will more than likely need the main control replaced #266746. The 2H means there is a heating issue, you need a multimeter to diagnose properly but here is a tale tale sign the board is bad.

Remove the dishwashers control panel, do so by removing the screws around the door, Bosch uses torq head screws on most of their appliances.

With the screws removed the control panel will release and fall forward, you will need to UN clip the control board from the plastic housing. On the bottom of the control there are several locking tabs, depressing them with a small screwdriver will release the board from the housing.

With the dishwasher control removed you can now open the plastic housing, the heater relay will be burnt, look for the missing or black solder mark on the board.

I have heard mixed reviews on soldering the control, sometimes it lasts most times it fails right away, I always replace the board its a sure fix.

Note also the thermostat located on the bottom side of the unit could also cause this error code, testing the thermostat with a volt meter should be done before purchasing any parts.

Jan 152011
 

Several factors can contribute creating a no drain issue. Bosch dishwashers have what is know as an auxiliary drain pump. This pump is not part of the main wash system, the drain pump is located on the bottom left side of the sump housing.

Pushing the locking tab in and rotating will release the drain motor from the housing. You will need to do this if the drain pump is found defective or if foreign debris is lodged inside.

Several possibilities for a no drain issue include:

-Clogged drain hose

-Kinked drain hose

-Failed drain pump

-Disposal or standpipe adapter clogged. Often installers will install make shift candy canes for the stand pipe, when doing so they use a smaller diameter pipe, food and debris often become stuck inside.

If determined the drain pump needs to be replaced or cleaned you will need to access it from the front, disconnect power and remove the lower kick plate two screws hold it on.

With the dishwasher kick plate removed you will see the pump on the left side like stated above depress the locking tab and rotate the pump to remove. Before removing the kick plate you can access the dishwashers drain pump from the top, you can not remove it but you can clean it.

Access the dishwasher pump from the top by twisting the filter located in the bottom dishwasher, remove the metal screen. Removing the screw over the drain pump access cover may reveal the issue. Cleaning the drain pump from the top with needle nose pliers may help aid in lifting small obstructions out of the way.

After repairing the dishwasher whether replacing or cleaning the pump, you can set the dishwasher to a normal cycle and let fill, once filled hold down the corresponding drain/cancel buttons and the dishwasher will go into a 2 min drain cycle.