The water is not being heated, and dishes are not

If the machine has only 1 fill hose, I would connect it to the cold tap. If you connect to hot only, the machine goes through its cycle too fast and wont wash as good. The machine stays on a wash cycle until it heats up the water. If you connect to hot water, it will do a shorter wash because it doesn't have to heat the water up as much. The shorter wash time, decreases how good the wash result is.

Dish washers only use water supplied from the hot water side of the pipes under the cabinet or sink, so if you installed the dishwasher yourself, be sure that you ran your inlet water line and connected it to the hot water side, and not the cold water side. The dish washer has heating elements inside the machine to dry the dishes, not heat the water. If this is hooked up correctly and you are still getting cold water to heat the dishes, the problem may be that the unit is too far from the hot water tank. In that case, you may need an auxiliary hot water tank installed near the dishwasher under the cabinet. They make small tanks for such purposes.

Always to cold water.

Dishwashers have a heating system built in which when appropriate heats the water to the desired temprature. If you connect hot water raw or even some dried on food stuff on the dishes would get "cooked" even futher and get baked on.

Hi -
I can't see how any installation problem would cause this - if the dishes are still wet at the end of the cycle, you'll probably find the water isn't heating during the wash cycle. The dishwasher uses steam to heat the washing compartment and dry the dishes. It would appear that the dishwasher isn't heating water internally.
Even if the washer was accidentally connected to the cold water supply ** (see note), this shouldn't happen as regardless of the water supply temperature, the washer should still heat the water to the correct temperature internally.
** UK dishwashers should be connected to the cold water supply. For US installations, dishwashers are commonly connected to the hot water supply. For other locations, please consult your installation instructions.
I suggest you start a regular wash cycle and leave it to run for 10-15 minutes. Then open the door and test the temperature of the water in the base of the washer by hand. The water should be hot and there should be steam present in the washer when you open the door.
If the water is cold or only warm, the water isn't being heated internally or isn't heating to the correct temperature, in which case you should contact the retailer or Bosch Service immediately for a replacement. Do not accept an offer of repair on a brand new washer!
Additionally, do not attempt to repair the dishwasher yourself when under warrantly as this will invalidate the warranty.
Hope this helps. If you need further assistance, please let me know your location and the model number of the washer. This should be laser-etched into the top of the door if you can't find it on any of your paperwork.
Regards, BElectric

The dishwasher does not heat up the water. The water should be hot coming into the dishwasher, check your hot water supply source, whether it be the hot water tank or be sure the water inlet for the dishwasher is not connected to the cold water line

Hi,

For most dishwashers the hot water is the connection you want to have for the supply to the dishwasher...

I believe that it is also correct for this model also...

The dishwasher heating element will keep the water hot but is not powerfull enough to heat cold water effectively...


You will be just fine...

heatman101

Tony -

Your heating element has probably burnt out, but it's possibly just a break in the wiring or a bad connection to the element.

You need to gain access to the element to do some resistance/continuity testing to find out which of the above is the problem.

Hope this helps.

Can be connected to both but connecting it to the hot water would make for a shorter and more economical cycle - no need to wait for the water inside the washer to be heated.

If this dishwasher is a residential dishwasher the water that is supplied to the unit is from the hot water side of the sink supply. The dishwasher does not heat the water it uses water from the water heater that is connected to the house. It sounds as if the dishwasher is hooked up to the cold water supply instead of the hot water supply. The heating element you see in the dishwasher is for drying purposes and not for heating water. I would check the hot water supply for your dishwasher to see if that could be the problem. Also remember unless you have a recirculating pump on the hot water there will be an amount of water in the pipe from the water heater and the dishwasher that has sat and cooled down over a period of time therefore when you turn on the dishwasher you will not get hot water immediately due to the distance the dishwasher is from the water heater. You will notice when you turn on the hot water to thew sink you do not get hot water right away you let it run for a minute before it gets hot since the dishwasher is connected to the same valve as your hot water to the sink it acts the same way.
Good luck on your repairs hope this helped.

Dave

When you run the hot water at the kitchen sink until it is hot and start a cycle on your dishwasher, is water hot when you open the door after it stops filling?
If no, the diswasher is connected to the cold water line, not the hot water line. The water temerature entering should be a minimum of 120 degrees but no hotter than 140 degrees.
If the water going in is hot, but it cools down after each filling then the heating element has failed and needs to be replaced. When the heating element fails, the dishes, especially the glassware will be foggy and still dirty.
Please reply with what you find. Good Luck!