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Customer Questions and Answers for Turbidity Sensor by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18071610
Manufacturer Part Number: WPW10705575

The Turbidity Sensor is an OEM part for Whirlpool dishwashers. It detects the level of particles in the water during the wash cycle, allowing the dishwasher to adjust the cycle duration and water usage for optimal cleaning performance. This sensor ensu

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Questions & Answers

For Whirlpool Turbidity Sensor (Part Number: OEM18071610)

George for Model Number WDF750SAYM3

I have the Whirlpool dishwasher model (about 1.5 yrs old) WDF750SAYM3. The problem I have is that: 1. Start the dishwasher 2. Water fills, but not enough to trigger the float switch 3. Motor won't start 4. Dishwasher completes cycle, but dishes are not washed Dispenser is opened but detergent is not dissolved. I ran the diagnostic test, as mentioned in the tech sheet. It always comes up with error code 6-4. I tested the float switch. When switch is off, reading shows infinity. When switch is on, reading shows 003. I checked the F8 and F9 fuse also (it wasn't easy getting to it, but with great difficulty managed it) and they both read 2. Could you please help and give me some guidance regarding what could be the issue? Last week, the dishwasher would work intermittently. Sometimes, washes, sometimes motor wouldn't start and some times it would start, but then motor would not run midway during the cycle. But cycle always gets completed. I tried pouring water into the dishwasher (like about one third gallon) by opening the door during the water fill to make sure float switch will turn on, but even then the motor is not starting now. I only hear clicking noise.

1 Answer

Greg, With the unit filling with water then having a burning odor then this would sound more likely to be a faulty motor. Sounds like the motor may have seized up.

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Chad for Model Number MDB7749AWB1

Dishwasher is not draining at all, unless you hit the cancel and drain button. I have checked for clogging and can't find anything clogged. I have also ran the dishwasher with the drain line in a bucket during the cycle and the washer is not draining until you hit the cancel and drain button. Is the drain pump bad? Is the optical water indicator bad? Are both bad? Could there be an issue with the electronic control not telling the other parts when to engage?

1 Answer

Chad, The drain pump WPW10348269 isn't the issue, it works when "forced" to. The OWL sensor isn't likely to be the issue either, that lengthens or shortens a cycle based on the clarity of the water in the tub. You may want to check and make sure the top (optical sensor) isn't coated with sediment or debris that may disrupt the operation. So that pretty much leaves the W11202746 control board as the culprit.

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1 Answer

Fred, the sensor will twist into place. You can check to make sure that it is fully seated and if it is then you will want to replace the sensor.

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1 Answer

Hello Rhonnda. Test for power to the board on the unit. If there is power there and the unit does not come on, you will need to replace the board W10597045 on the unit.

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Timothy for Model Number Maytag MDB7609AWS2

My dishwasher is shutting down completely at certain points in the cycle. A normal wash will shut down approximately 3 times, where as a light wash will shut down only once. The dishes come out clean and all audible visible functions are operating, wash pump, drain pump and heating element. The shut down completely disables the control panel for approximately 10 minutes. I have replaced the control panel (same issue happening). I ran a diagnostic cycle and it came up as the OWI sensor. I removed the sensor, cleaned it and placed it back in the unit. I ran a another diagnostic cycle and did not get the same OWI sensor indication, but still had the same shut-down issue when I ran the unit. I have ordered an OWI (turbidity sensor) and plan to replace it. Thoughts? Maybe the control board?

1 Answer

Hello Timothy. If you replace the sensor and the issue continues, it would lead to replacing the control board in the unit.

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Brad for Model Number MDB4709PAB1

The washer is working properly except when the sanitize option is chosen. This light flashes continually when the wash is completely done, indicating the water temp was not hot enough to sanitize. I replaced the heating element (the original one tested good when I used a ohm meter) Also, the dishes don't seem to be drying completely when the heated dry cycle is chosen. Thermostat? All the functions of the control board have been found to work properly.

1 Answer

Hello Brad, You have a door switch, the control, the heating element, the high limit, and the harness in this circuit. Each of these should be checked except for the control, which cannot be checked without voltage applied to the circuit. If all test good, the control W10486463 is the issue.

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1 Answer

Hello Leo. Most likely the cause was using an element not recommended for the unit. You need to use OEM parts.

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Ron for Model Number KUDP021RWH2

I have a leak from the bottom front of my dishwasher Kitchenaid Model KUDP021RWH2 where two wires are attached to this cylindrical shaped part about the size of a thimble.  Could this be thermistor AP4410881 and can this part be replaced without disassembly of the pump housing? This thimble shaped part with two wires is not part of the inlet valve assembly, nor the pump itself but from below appears to be located in or attached to the cavity of the return water back to the pump for circulation.

1 Answer

Ron, The part that would be leaking that looks like a thimble size would be the thermistor and can be replaced separately.

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