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      Webinar Recordings Index Page   10/03/2017

      On-demand appliance repair training videos for Professional Appliantologist members Over 30 hours (and growing!) of original, high quality appliance training webinars developed and given by yours truly are at your fingertips, on topics you won't find anywhere else. Fill in those knowledge gaps, strengthen those areas of uncertainty, and boost your skills. Watch on mobile or desktop at your convenience whenever, wherever.  Ultra Short Primer on Basic Electricity, Circuits, Ohm's Law, and Schematic Reading (Length: 1:04:48) Basic Refrigerator Troubleshooting (Length: 1:10:45) Schematic Reading Workshop, 10/2015 (Length 1:19:08) Troubleshooting Strategies for Computer-Controlled Appliances (Length: 48:34) Semiconductors and PN Junctions (Length: 1:04:37) Appliance Temperature Sensing Devices & Technology (Length: 1:27:33) Voltage Measurements, Meters, Ghost Voltages, and Triac-controlled Neutrals (Length: 1:29:32) Troubleshooting with Tech Sheets, Part 1, 4/2016 (Length: 1:09:26) Troubleshooting with Tech Sheets, Part 2, 4/2016 (Length: 1:21:11) Tech Sheet Review, 4/9/2016: Bosch Speed Cooker, Amana Refrigerator, GE Glass Cooktop Range (Length: 1:22:58) Pulse Width Modulated (PWM) Switches used in Samsung Switched Mode Power Supplies (SMPS) (Length: 27:07) PWM Computer Cooling Fan in a Whirlpool Refrigerator (Length: 14:53) Understanding AC Split-phase Household Power Supplies (Length: 52:41) Troubleshooting a Samsung Electric Dryer without Disassembly using Live Tests and the Schematic (Length: 22:47) Troubleshooting a Bosch Dishwasher No-Heat Problem using the Schematic and Live Tests (Length: 15:38) Linear Motors and Linear Compressors (Length: 55:54) Bi-directional PSC Drive Motor Systems in Whirlpool VM Washers (Length: 56:52) Appliance Service Call Structure and Troubleshooting Strategies (Length: 1:00:16) The Ten Step Troubleshooting Tango and Workshop Exercises (Length: 1:35:39) Troubleshooting Ten-Step Tango Advanced Workshop (Length: 1:32:06) Ten-Step Tango Troubleshooting Workshop: Refrigerators (Length: 1:35:57) Whirlpool Duet Washer Schematic Analysis & Whirlpool Dryer Moisture Sensor System (Length: 1:03:04) Neutral Vs. Ground, Inverter Microwave, Digital Communications, Loading Down in DC loads, and more! (Length: 1:14:45) Gas Oven Service Call After a Parts Changing Monkey (Length: 36:04) AFCI and GFCI Circuit Protection Technology (Length: 41:26) Troubleshooting Samsung Refrigerators and more (Length: 1:29:58) 3-way Valves and Dual Evaporator Refrigerators (Length: 1:15:45) Split-Phase Compressors and PTC Start Devices (Length: 1:11:57) Gas Dryer Ignition Systems (Length: 53:50) Refrigerator Sealed System Thermodynamics, Part 1 (Length: 43:07) Refrigerator Sealed System Thermodynamics, Part 2 (Length 1:09:09) To access these webinars and all the other info-goodies here at Appliantology, become a Professional Appliantologist today. If you need cost-effective, time-flexible, state-of-the-art appliance technical training, check out the Master Samurai Tech Academy.
activa

Whirlpool wdf520padb dishwasher stops

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activa

Whirlpool wdf520padb dishwasher fills, then I hear a (quiet) click-whirr, which repeats every four seconds for about 30 seconds, then the unit stops.

BTW, I believe this unit has a diagnostic mode, which I can trigger by clicking any three buttons three times in a row. When I do this all the LEDs come on, and then just three come on. But I don't have the diagnostic paperwork that's supposed to be in the plastic sleeve inside the kick cover. I must have... "filed" the papers somewhere. If anybody has a copy or can direct me to one online I'd be grateful.

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activa

Ok, so the problem was the circulation pump. Interestingly, I was able to remove just the motor from the side of the unit, just slid the washer out, pushed down a locking tab, rotated the pump and it slid right out. After I took it apart it started working. However, it's intermittent, and I think it's something on the PC board for the shaded pole motor (I tested the motor with 120AC out of the washer). The motor is an Askoll M310. But I can't find just the motor itself, which is a shame since it's all modular and just clicks together. Does anyone know where I can get just the motor for this unit? Otherwise I'll have to buy the whole pump assembly and just use the motor.

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johntech
Posted (edited)

Motor has updated part number and is sold as an assembly only.

Part number: W10879262

Part number: W10879262

You can pull up a picture on repair clinic.

You will need to install the whole assembly, I wouldn't reccommend just replacing the motor. Since the part has been updated it may not even fit on your existing housing.

Edited by johntech

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activa

Johntech,

Thank you for the answer.

"You will need to install the whole assembly"

Why? I was able to easily snap the motor out, test it on my bench, and snap it right back in. It has "O" rings and was clearly meant to be disassembled. I can supply pictures next time I have it disassembled.

"I wouldn't reccommend just replacing the motor."

Why not? Other than the "O" ring, there's nothing common to the assembly. Is there some possibility the failed motor has affected the pump housing?

Thanks again for your help,

Brad

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johntech

Do what ever you want. If I were to call tech support they would say they designed it to be replaced as an assembly and to install all parts in the kit. Me personally I would spend the extra couple of minutes to do the repair right or not do it at all. 

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Chat_in_FL
54 minutes ago, johntech said:

Do what ever you want. If I were to call tech support they would say they designed it to be replaced as an assembly and to install all parts in the kit. Me personally I would spend the extra couple of minutes to do the repair right or not do it at all. 

If the O-ring gets stretched, pinched, or twisted when taking the shortcut, you are screwed...

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Lighthouse

One very important thing I learned from this sight is "change the sump".

I did not heed this advice on my first pump call and it bit me in the butt. Now if there is a pump problem they are getting a quote for a new sump.

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johntech

Plus since it is an updated part number the manufacturing tolerances may be different then the original but visually be the same. Say the housing allows for a few thousandths difference. It may work and not leak right away but could leak prematurely. Aslo since it is updated they may have made minor changes to prevent problems they came across after the appliances were on the market. 

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MoTeD

You could have the motor windings rewound. Don't sell yourself short unless you like to wash dishes by hand. I learned very early on in this industry that usually it's better to not ask "why". The manufacturer has their reason for not offering the motor as a separate part and substituting as a whole assembly. If its that much hassle just replace the whole dishwasher. I just looked at a FRIGIDAIRE in the home improvement store for 299$ (USD). 

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