Question about Thermador DW44Z Built-in Dishwasher

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Dishwasher won't heat and running long cycles

DW has seemingly been taking longer and longer to complete a cycle. Now it appears to be not heating as well

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3 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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Posted on Jan 02, 2017

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Macmarkus
  • 2605 Answers

SOURCE: dishwasher runs forever - I have to manually drain

Hello,

Welcome to FixYa.

Based on your description
I'd say the issue actually with the control...unfortunately. This is commonly associated with a heating fault.


Since the issue is likely 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 ).
These are the steps you'll need to follow to resolve it or at least investigate.

If you feel capable of checking this on your own, there`s a way to visually inspect the control yourself...it really isn't very complicated.

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.


dabfa62.jpg


The culprit will 99% of the times be one of the pins from the heater relay,

9f1823d.jpg

**Flip this over and inspect the solder joints, it will be obvious when you see it.**

This ones new, but it's where to look...

9119d99.jpg


...hence the unit sit`s and takes longer & longer to finish because it can`t heat to advance or unless the 2 buttons for "cancel" are pressed...or takes a long time as I mentioned and eventually display's "1" on units with a display and usually very poor cleaning, no heating as a result.

You can also run the unit through a regular or econo cycle ...any cycle with the exception of rinse & hold, and with the door panel removed place an ammeter on the gray/black wire it should draw 11 amps during the wash cycle...after it fills and the flow switch indicates it has adequate water to engage the heater.

i.e.

f57273b.jpg
**My Opinion - if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...but it has to be done well...or it will not last, although Bosch recommend`s replacing the control and I don`t pretend to speak on their 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 or turn off the breaker 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/Siemens, to service your machine.

Hope this answer`s your question, 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.

Good luck.

Regards,

Macmarkus :)

Posted on Feb 14, 2011

Testimonial: "great quick response - hopefully we can fix it ourselves"

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heatman101
  • 43501 Answers

SOURCE: Is it possible that when

Hi,
Yes, many dishwashers now will take at least two hours and some more depending on various things that ti checks as it is washing...
With the newer detergents and cooler water temps. the cycles are getting longer...to do the same job...

heatman101

Posted on Mar 07, 2011

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1 Answer

Whirlpool built in dishwasher DU840SWKQO


Hi

Thanks for using FixYa. If the cycle doesn't complete, then the first thing that should be checked is the Timer and then the heating element. Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it. Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next depends, as follows: On some units, the pause is timed and the unit continues after the allotted time. On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too. Please accept the solution if the issue is resolved or post a comment for further assistance.


Thanks

Rylee

Dec 22, 2011 | Whirlpool Dishwashers

1 Answer

Dishwasher stalls


If the cycle doesn't complete, check these:

Water-heating cycle
Timer
Water-heating cycle Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:

  • On some units, the pause is timed and the unit continues after the allotted time.

  • On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too.

Timer Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it.


May 31, 2009 | Bosch SHU4006 Dishwasher

1 Answer

Running time of dishwasher


he cycles times are too long If your dishwasher's cycle times are too long, check these:

Water pre-heating
Cycle not completing
Water pre-heating Your dishwasher may pre-heat the water. If so, and if the water entering the dishwasher is cool, the heater may take up to half an hour to heat the water. 

To avoid the wait, increase the incoming water temperature before turning on the dishwasher. Do that by running the kitchen sink faucet until the water runs hot. Or increase the temperature of the hot water to the entire house at the hot water heater.

Warning! To lessen the risk of scalding, don't set the hot water heater temperature higher than 120 degrees Fahrenheit. 

Cycle not completing See "The cycle doesn't complete" section. 

The cycle doesn't complete If the cycle doesn't complete, check these:

Water-heating cycle
Timer
Water-heating cycle Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:

  • On some units, the pause is timed and the unit continues after the allotted time.


  • On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too.


Timer Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it. 

Mar 14, 2009 | Bosch Dishwashers

1 Answer

Frigidaire dishwasher not completing cycle.


hi,
The cycle doesn't complete
If the cycle doesn't complete, check these:

Water-heating cycle
Timer

Water-heating cycle
Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:

On some units, the pause is timed and the unit continues after the allotted time. 

On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too. 

Timer
Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it. 

I see an error code
If your dishwasher has a digital readout and you see an error code, it may indicate a problem with the unit. If this happens, look up the error code in your owner's manual to find out what the problem is.

Good Luck
Thanks for using FixYa

Jan 03, 2009 | Dishwashers

1 Answer

Dishwasher runs for a long time


If your dishwasher's cycle times are too long, check these:

Water pre-heating
Cycle not completing
Water pre-heating Yourdishwasher may pre-heat the water. If so, and if the water entering thedishwasher is cool, the heater may take up to half an hour to heat thewater.

To avoid the wait, increase the incoming watertemperature before turning on the dishwasher. Do that by running thekitchen sink faucet until the water runs hot. Or increase thetemperature of the hot water to the entire house at the hot waterheater.

Warning! To lessen the risk of scalding, don't set the hot water heater temperature higher than 120 degrees Fahrenheit.

Cycle not completing

Nov 12, 2008 | Kenmore 24 in. 17362 / 17364 / 17369...

1 Answer

Cycle runs for 2-3 or more hours


If your dishwasher's cycle times are too long, check these: Water pre-heating Your dishwasher may pre-heat the water. If so, and if the water entering the dishwasher is cool, the heater may take up to half an hour to heat the water. 

To avoid the wait, increase the incoming water temperature before turning on the dishwasher. Do that by running the kitchen sink faucet until the water runs hot. Or increase the temperature of the hot water to the entire house at the hot water heater.

Warning! To lessen the risk of scalding, don't set the hot water heater temperature higher than 120 degrees Fahrenheit. 

Cycle not completing f the cycle doesn't complete, check these:
Water-heating cycle Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:

  • On some units, the pause is timed and the unit continues after the allotted time.


  • On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too.


Timer Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it. 

Oct 23, 2008 | GE Nautilus 24" Built-in Dishwasher

2 Answers

Frigidaire FDB635RBB heat wash/heat rinse


Most DW today take a minimum of 90 minutes. Run the hot water from the sink until it gets hot, then start the DW, this will shorted the first wash cycle. It is not uncommon for the DW to run 2hrs or more based upon the water temperature entering the DW and the soil level of the items in the DW.

May 29, 2008 | Frigidaire 24 in. FDB635RF Built-in...

1 Answer

Dishwasher problem


If the cycle doesn't complete, check these:
1. Water-heating cycle
2. Timer

Water-heating cycle
Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:

On some units, the pause is timed and the unit continues after the allotted time. 


On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too. 

Timer
Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it.
 thanks for using FixYa

Feb 10, 2008 | Kenmore 65924 Electric Dryer

2 Answers

Wash cycle


momrules, it could vary depending on the water entering the dishwasher. On a heavy cycle normal time is about 85 minutes not including thermal holds ( pauses that heat the water). On a normal wash, 68 to 75 minutes not including thermal holds. If the water entering the dishwasher is not at least 120 to 140 degrees the dishwasher will pause in cycles to heat the water before advancing. So 120 minutes is not unrealistic. The heaters in the dishwasher are low wattage and will only heat the water approx. 2 degrees every 5 minutes. Catriver.

Nov 30, 2007 | Kenmore 24 in. 17512 Built-in Dishwasher

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