Ian April 15, 2019 Hi there. My Bosch dishwasher won't turn on. Pressing on/off switch does nothing - still no light. I checked the power and it is getting to the machine, no breaker tripped... Should there be continuity in the on/off switch? I tested and there wasn't any. I've read about the thermal fuse but I don't know where that is on this washer. Door latch fuse has continuity...
1 Answer Ian, Without a model number, a little difficult to be able to be exact and correct. But, on a Bosch dishwasher, yes we would expect the on/off switch to have a closed circuit when pressed, or at least a momentary contact. We'll need at least a model number to check and verify the on/off switch circuits and the proper part number of the switch. Thanks, Read More...
Ran May 04, 2017 for Model Number NEFF 15 years old, don't know more than that... Hi, I have a 15 years old NEFF dishwasher. I opened it yesterday because it was leaking from the heating unit. I found out that the sealing around the rotatable plate was damaged, and the connection to the main cogwheel shaft was damaged also. I wanted to know what is this mechanism responsible for, and if I can bypass it? Finally, I took out the rotatable plate from the heating element ,and sealed the cogwheel shaft, so when the motor moves, it actually do nothing. Can it still function properly ? Thank you and best regards, Ran
Nick December 13, 2016 for Model Number SHX46AO2UC/21 Bosch SHX46AO2UC/21 Dishwasher. Fills fine. During a cycle it started to randomly eject and fill. I did not notice if the circulation pump was circulating right at that moment. I just shut er down for the night. Next day water was left. Started new reg wash expecting to hear 3 or main pre drains but not. Got under the hood and pulled the red drain rod and ejected all the water manually. Started new cycle thereafter. Filled and again it started it's random fill and ejects each for a couple of seconds. This went on for a couple mins and stopped. It never entered into the circulation mode. Wasup with this thing? Thinking the test would give me a clue, I'm still lost. The scrub and eco button test resulted in reg wash lit solid with the eco flashing? Any ideas? Thanks in advance Nick
1 Answer Nick, You will want to look for a leak which could be tripping the flood switch on the unit. Read More...
Jacob January 31, 2016 for Model Number SHE45M02UC/50 I've got the classic non-heating Bosch dishwasher problem. I've pulled the control board and verified that the relay is intact (and in fact replaced it anyway, figured as long as I was in there I might as well). When I measured the resistance of the NTC, I get a resistance of 71K ohms at 77 degrees, much higher than the stated resistance of 45K ohms. Is this out of the specification range? Thank you
1 Answer Hello Jacob, At 77°F you should read about 48K ohms.so your reading is out of range. I would replace it since it is a negative temperature co-efficient. This basically means that as the temperature decreases, the resistance increases. Read More...
Scott January 11, 2016 for Model Number SHX68R55UC/67 I have the Bosch Dishwasher model named. It runs completely fine with the major exception that the water appears to never get hot. I have looked at online videos indicating that a relay goes bad on the control board but my model of Bosch dishwasher does not appear to have any relays on the control board and the control board looks pristine. Should I consider thermistor replacement or the water heater? Are there any other parts that could be defective? Like I said earlier the only issue is that the water never get hot, otherwise the operation is normal. Thank you.
1 Answer Scott, There is a control board that is located on the right side of the unit down at the bottom that has to be accessed by removing the unit from installation. This control board is what has the relay on it but what you would first want to establish is whether the control board is sending power to the heater assembly. This can be done by running the unit through and testing the control board to make sure that it is sending power. If it is then the issue would most likely either be the thermistor having failed or the heater being defective. You can test the heater resistance and it should be approximately 11 ohms at room temperature. When looking at the NTC thermistor, it has a high limit and NTC in it. When looking a the terminals on the part, the 2 left terminals would be the high limit which can be checked to make sure that it is closed at room temp. For the NTC which are the 2 right terminals you will want to check the resistance Here are some temps that the resistance should read for the NTC, at 72 degrees should be 55K ohms, at 77 degrees would be about 48K ohms, at 100 degrees would be about 27K ohms, at 122 degrees would be about 17K ohms and at 145 degrees would be about 10K ohms. Read More...
Boston G. November 17, 2015 for Model Number SHU33A02 UC/14 (FD 8211-) Dishwasher fills, washes & keeps washing. I've checked the continuity on the heater & appeared fine. So, I replaced the control unit, but it is still doing the same thing. Now I'm thinking the Thermistor 00165281. I'd love to know what you think.
1 Answer Hello Boston, The thermistor is a very good possibility. Verify the harness integrity and all connections and the voltage to the heater from the control. Don't forget that proper leveling and unit mounting under the countertop is very important for normal operation. Read More...
Rich August 02, 2015 for Model Number Bosch SHU8805UC/U12 Volts make it to machine yet nothing. On/off checked for continuity and fine. Thought about just replacing parts as a true DIY would do yet if it's just a thermistor great. A control panel "not available" and 160 bucks. Time for new machine?
1 Answer Rich, If there is power getting to the control board but is not getting anywhere else in the unit then you will want to check the door latch. If the door latch is ok then the issue will be the control module. Read More...
Cochese October 21, 2014 for Model Number SHX46A05UC/40 Hi - I noticed my DW was leaking a bit from the base so I removed some panels, ran a cycle and found the leak at the base of the thermistor. Water slowly wells up around the metal base where it meets the plastic housing, especially near the clamps (where there are notches in the housing, which seems ill-advised, but anyway). I removed the thermistor and inspected the housing and all other areas of the heating element - no cracks or other issues. The o-ring seal did look a little scuffed on one side, so I turned it around and put the "good" side water-side down, re-ran a cycle and same result. I have ordered the factory seal and will try again soon with that new part. But I'm wondering if I'm missing something. Has anyone seen this problem before? Could it be as simple as a bad seal, even if to my (admittedly untrained) eyes the current seal doesn't look all that bad? Thank you!
1 Answer Cochese, with the unit leaking at the thermistor the issue would be caused by the seal. If the seal is bad then it will cause the issue. Read More...
Fred September 30, 2014 for Model Number Whirlpool GU2548XTPQ6 I have an issue with my whirlpool dishwasher. The dishwasher will not complete a cycle. It will stop and the clean light will flash 7 times. I have checked the heating element(10 ohms), and the over temp switch(closed). The component I have a question about is the Thermistor. With a meter connected to it, I hold it over my stove top element and watch it as it is heating up. It starts at about 50 ohms then starts to drop as it gets hotter. It will go open for a nano second at around 40 ohms, then continue to drop. It will do the same on the way back up when it is cooling in the freezer, open at around 40 ohms. I don't believe this is normal, but Im not sure if this is something built in to this particular sensor. Any advise?
1 Answer Fred, The resistance of this thermistor will drop as it get warmer. At room temperature there should be a resistance reading of 48K to 52K ohms at 77 degrees. At 140 degrees the resistance would be between 12k and 13K ohms of resistance. It sounds like the thermistor is doing what it should be. The slight delay may have been caused by rapid heating and time to adjust. You will also want to check the wiring and if the wiring checks ok and if it does then the issue would be the control board. Read More...
Jean-Pierre July 19, 2014 for Model Number Bosh Dishwasher SHU5316UC/14 serial 76X6 The unit runs, heat but stop as soon it gets hot, after about 30 minutes, then it cools down until a restart for another stopping few minutes later. Main switch... check Board connectors... check Could have been the motor thermal protection... Change the motor... done, it doesn't change the problem. Could have been the Thermistor Hi-limit Change the 85oC Thermistor... done it doesn't change the problem. What could it be then ? Change the dishwasher... not done yet. Any suggesting somebody?
1 Answer Jean-pierre, You will want to look at the power supply connection of the dishwasher to make sure that the wire nuts and connections are good. It sounds like there may be a loose connection and when the unit runs it heats up and causes the unit to shut down. Read More...