Chris January 03, 2022 for Model Number SHX55R55UC/64 I am replacing the thermistor/high temp limit sensor on my Bosch dishwasher due to non-heating issue. However, the thermistor measures fine, and the high temp limit does work, but seems to switch at a lower temp than I expected. Does anyone have the spec for this device (00165281)? Thanks.
1 Answer Chris, the hi-limit thermostat should open at a temperature of 185°F, close at 130°F, and the thermistor should read about 55K Ohms of resistance at room temperature. The heater 00480317 would need to be tested for resistance and it should measure 11 Ohms. The flow switch 00426400 attached to the heater should measure continuity when it is removed and manually activated. If these things test good and the wires are not broken or pinched, the failure would likely be in the main control module 00705665. Read More...
Kt Anderson April 25, 2020 for Model Number SHX57C02UC/31 Hello, My dishwasher suddenly stopped working. I had just installed a new impeller in the circulation pump and started to test it out by running a load of dishes. It started working, then suddenly stopped. After opening the door, I saw that no lights on the panel were on, and I couldn't get them to come on. I then turned off the power at the breaker panel in the garage, took apart the dishwasher and found that there was a pool of water under the tub in the white base (thankful for that so it didn't go all over the floor). After drying it out, checking all the seals (found that one hose had come partly loose somehow), putting it all back together, and hooking up the wiring again (it's hard-wired), I turned the breaker back on and pressed the power switch on the dishwasher and it still didn't work. I did test the wires in the Roma power cable coming out of the wall and there's power coming from the wiring, and I know it's wired correctly to the dishwasher (black/black white/white green/ground). Can you please tell me if the water leak would've caused it to stop working, and if so, what the fix might be? Did the water leak cause some part to fail? I wouldn't think it would be the power switch since the washer was already working when it quit, and I don't think there's a fuse in this model. It may be the control panel, but I hate to get a new one only to have it ruined again if there's another issue causing it. Thx.
1 Answer KT, It would be recommended to check the wiring between the wire hookup to the main control board to make sure that there are not broken or damaged wires. If the wiring checks ok then the issue will be a faulty control module that would need to be replaced. Read More...
Carlos Batista April 04, 2020 for Model Number SE25240EU Hello, I have in my kitchen an older (18+ years) Siemens Dishwasher, not heating up the water. The heater is fine although it is not being turned on, so there is a chance of an issue with NTC temperature sensor. It uses an NTC (ref. 00165281). Before deciding to replace it (lots of patience required) did the following measure: - At room (kitchen) temperature of +/- 17º C the NTC has a resistance is 69Kohm. Is this an acceptable value, could it lead to a damaged NTC? I'd like your opinion. I'd appreciate any additional info based on your professional experience. Thanks & BRs Carlos Batista
1 Answer Carlos, It is a good chance that the sensor would be faulty or the other issue would be that the main control board is not sending power to the control board. Read More...
Raymond March 30, 2020 for Model Number SHU5312 UC/06 I checked the thermistor resistance as per your recommendation and came up with 46.5KO. That's a little bit lower than your specifications. Is this okay or should I replace it?
1 Answer Hello Raymond, This should be fine since there is a 10% tolerance for the part. Read More...
Raymond March 25, 2020 for Model Number SHU5312 UC/06 Your advice is to check the thermistor resistance. Can you tell me what is the color code for the wire connections to the control board. I'd also like to check heater and turbidity resistance.
1 Answer Raymond, the heater resistance should measure 11O of resistance and the turbidity sensor should measure greater than 1MO. The turbidity sensor can be tested at connection BN15 pins 5, 6, and 7. The NTC would be tested at pins 1 and 2 of the same connector. Read More...
Raymond March 25, 2020 for Model Number SHU5312 UC/06 I have the usual problem in that my dishwasher sometimes continues running with a 1 showing on the timer. However sometimes it will finish OK. I replaced the control board. No luck. I put a voltmeter on the heater output from the board and started it.. It registered 120v for a few seconds, then dropped off. The water was only warm. I opened the door later in the cycle and the water was hot and steamy. Still, the machine did not finish. If I force it to finish by pushing the two program buttons, and then immediately start a new wash cycle with the tub already preheated, it will usually finish by itself. NTC sensor?
1 Answer Raymond, the NTC sensor 00165281 can be tested for resistance and should measure about 55KO at room temperature. If this tests properly, the turbidity sensor 00165279 will need to be checked for any residue build-up and tested (from the middle wire to the left wire) for resistance greater than 1MO. If both items tested properly and did not have any residual build-up, then the main control 00266746 would be the more likely suspect. Read More...
Ohm December 16, 2019 for Model Number SHE23R55UC/64 My dishwasher turns on when I close it and start a cycle, the light for that cycle starts blinking and it makes a clicking sound synchronized with the blinking. It sounds like a relay in the control board clicking but not sure. I had someone test the control board for me and they said it was perfectly fine. Would this piece be the fault?
1 Answer Ohm, If the control light is flickering when the unit is running then it would be recommended to check to make sure that the power supply is not dropping and if it is not then this would likely be a faulty control board 00706316. Read More...
Ian May 07, 2019 Hi there, Still having questions on my power issue on Bosch model shx55R55UC/64. I have replaced the on/off switch and control board, but still no power. I can verify power is getting to the washer and the wiring looks fine... I have heard that replacing the thermistor can be an issue as well. Is this a logical next step? Or do I just need to troubleshoot all of this wiring...
1 Answer Ian, the dishwasher should turn on if there is 120VAC getting sent to the control. You will need to use a multimeter to verify the voltage. If the tool being used to test for voltage is the "sniffer" pen, it will indicate if there is a voltage reading but will not indicate as to what the actual voltage measurement is. As you have replaced the control and the on/off switch, the last thing that would prevent the control from operating is a voltage issue. Read More...
Ian April 24, 2019 for Model Number Bosch SHX55R55UC/64 Hi there, Bosch Dishwasher SHX55R55UC/64 won't turn on, the display is blank. I checked the door latch fuse and the on/off switch. I have understood that replacing the main control board is next... but is there another way to validate that my board is bad before I purchase a replacement?
1 Answer Ian, the voltage being supplied to the main control [00705665] is the best thing to check for at this point. If the main control is receiving 120VAC and is not operating, then the control is the issue. If the control is not receiving 120VAC, then there may be a wiring issue or a voltage issue going to the dishwasher. Read More...
Ian April 16, 2019 *edit from previous post* My Bosch dishwasher won't turn on. Model SHX55R55UC/64. 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, when testing the switch, you will want to test pin 1 to 2, 3 to 4, and 5 to 6 for continuity. When the switch is engaged, there should be continuity through the switch. If the switch tests good, then you will want to test for voltage at the control [00705665]. If voltage is getting to the control, then the control would be the issue. Read More...