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Bosch Dishwasher Water Not Heating

Bosch Model SHE44C05UC/22. The dishwasher won't heat the water.  Is the part difficult to install.  (I know it is time consuming, but is there any unusual tool or know how other than basic appliance repair skills?)

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  • Tom Hurley May 11, 2010

    how old is this dishwasher?

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Depends on if it is the controller board (easy, just behind the door and requires a torx 20 screw driver) or if it is the heating element. The latter is easy, but time consuming, as it requires you to pull the dishwasher out, detach the bottom, tilt it on it's back, and remove pump,etc to get to it. Not difficult, just a bit time consuming.

Posted on Mar 06, 2013

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SOURCE: Bosch dishwasher will not drain

drAIN AND CANCEL BUTTON WILL RESET UNIT;)

Posted on Feb 25, 2010

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Bosch classixx dishwasher not heating water on cooler wash works on hot wash


Most dishwashers don't heat the water. They run on whatever temperature water you have it set for. They have heating coils on the bottom but that's for drying, not heating up the wash water.

Nov 30, 2014 | Bosch 24 in. SRS43C12 Classixx Slim-Line...

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Water not heating up and not drying


Hello

If your dishwasher is not heating properly, troubleshoot the issue. You can often repair this problem and eliminate service fees.

Incoming Water
Most manufacturers recommend that the water coming into your dishwasher be at least 120 degrees Fahrenheit. If the water is too cold, then your dishes don't clean properly. Or the dishwasher must run longer to heat up the water. Test the water temperature by running the hot water on your faucet for about 2 minutes or until it gets really hot. Place a waterproof thermometer under the water. If the water is too cold, increase the water temperature setting on your water heater.

Thermostat
The thermostat is responsible for regulating the water and drying cycle temperature. If this thermostat isn't working, the heating element at the base of the dishwasher tub may not come on. Test this element by selecting the hottest temperature setting. Run the dishwasher on the shortest cycle. Let the dishwasher run for a few minutes, and open it up. If the dishwasher water is not hot or the drying cycle isn't starting, order a new thermostat from a parts dealer since this component is difficult to fix.


Heating Element/Drying Fan

The heating element heats up the water and air. Access this element by removing the bottom rack. It looks like a long black rod. If any part of this component is broken or corroded, you must order a new one. You usually cannot fix this element. The drying fan is located in the main housing of the dishwasher, and it blows air around your dishes to dry them. Check this part by disconnecting the dishwasher from the power supply and opening up the housing. Examine the fan, and see if any dirt or debris is preventing it from moving. Clean it. If the fan won't turn at all or if the motor is burnt out, order a new fan since it's difficult to repair this part.

Additional Concerns

If your dishwasher isn't drying your dishes properly, see if you have selected a heated drying cycle. An air drying cycle doesn't completely dry your dishes. Never overload the dishwasher, as this prevents heat from circulating around your dishes, keeping them from drying properly. Plastic and Teflon dishes don't usually completely dry. You must towel-dry these items.

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1 Answer

Just got a new Bosch dishwasher (forget which model). After the dishwashing cycle has ended (even long after), the dishwasher and dishes are still wet. Was this an installation problem? Thanks


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

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Hi,
Check your heating element..


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I have an older dishwasher also and recently my wife also complained about it not cleaning right... so me being the man I am tried in vain to clean the things... Bought new spray arms online and installed them in minutes...now the thing works like new... However I have also found that if the heating element goes bad then that also can mess things up bad... So I would buy new spray arms, and also check out the heating element to make sure it is working... Here is a tip that will help you with the online buying...


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Mar 16, 2011 | Bosch 18 in. SRS43C02 Classixx Slim-Line...

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My Bosch Dishwasher is not drying my dishes now. The model number is SHE44C05UC.


Hi there,

Unfortunately, it seems that the heating element has failed. The dishwasher uses steam to heat the tub to dry the dishes. I suspect your dishes are also being washed in cold water.

To check this, please run a regular full wash cycle. Allow the washer to fill with water and run for about 10 minutes, then open the door and feel the water temperature in the bottom of the washer. If the water is cold, it's more than likely the heating element has failed.

There are other possible faults which would cause the element not to heat, but these often prevent the dishwasher from completing the cycle. If the water is cold but the dishwasher still drains the water at the end - and completes the cycle - the heating element has probably failed.

Please try this simple test for water temperature and let me know if you need further assistance.

Regards,
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Hello Jsg5,

That symbol means that the dishwasher is heating the water, bringing it up to the required temperature to properly sanitize your dishes.

This symbol can appear during the wash and rinse cycles. It is nothing to worry about. Most dishwasher will heat up the wash and rinse water, it's just that Bosch decided to add an indicator, so users would know that any delay in the wash/rinse cycle, is a result of getting the water up to the proper temperature (typically around 140 degrees F)

Even if you've got your hot water heater or hot water supply set to a very low temperature, the dishwasher will use the built-in heating element (the drying element in the bottom of the dishwasher) to heat the water.

Hope you find this Very Helpful and best regards!

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