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    • Samurai Appliance Repair Man

      Webinar Recordings Index Page   11/07/2017

      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) Refrigerator Sealed System Thermodynamics, Part 3 (Length: 1:11:56) Refrigerator Sealed System Thermodynamics, Part 4 (Length: 37:45) Refrigerator Sealed System Thermodynamics, Part 5 (Length: 16:35) 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.
    • Son of Samurai

      [Webinar] Appliantology Workshop   12/14/2017

      In the first part of the webinar, we'll discuss some industry news, hot off the presses! After that, we'll give a brief 30 minute tour of the many valuable features that make Appliantology such a powerful information tool for your business.  

Samurai Appliance Repair Man's Blog

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About this blog

Pearls of appliance repair wisdom from the Appliantology Forums

Entries in this blog

Samurai Appliance Repair Man

This Public Service Announcement is brought to you today by Brother fixyourboard of Fixyourboard.com fame, providing fast, expert rebuild and repair of NLA circuit boards:

After replacing evaporator fan and having the main board rebuilt ... the new fan wouldn't run. Well it turns out that the new fan comes with a new wire harness BUT it only applies to certain models. It swaps some wires around and if you install it on the wrong model the evaporator fan doesn't get power!!! It looks just like the orignal (unless you look closely at the pinout). It seems the fan doesn't ship with the WP instruction sheet. Fan p/n 8201589, board p/n 2252159 and brothers, jumper harness p/n 2221077.

This has got to have caused a lot of head bangin' ! ??

Here's the instruction sheet. Sorry it's a png. Site didn't let me attach the pdf.

post-36798-0-47349600-1369173320_thumb.p

Here's the link to the PDF of the evaporator fan motor installation instructions: http://appliantology.org/files/file/867-whirlpool-fridge-8201589-evaporator-fan-instructions/

Source: KSSS42FK KA Built In Evap Fan not running after board/fan replacement

Samurai Appliance Repair Man

Winter Wonderland Hike up the Ammonusuc Trail

Celebrated the Second Day of Christmas with an awesome winter wonderland hike up the Ammonusuc Trail to the AMC Lakes of the Clouds hut. Didn't take the Oz Man this time because I didn't think this trail and conditions would be dog-friendly. Turned out to be the right choice-- would have had to abort mission if the Oz Man was with me, no way he could've made this.

Trail conditions were snow on top of ice-- combined with the steep grades, this is one of the most difficult traction conditions you can encounter. I only brought my Kathoola microspikes and they were not at all adequate for this hike-- needed full 10-point crampons, which I left back in the van. :( Took some world-class tumbles both going up and back down. No real injuries, just a wet, bruised butt and snow dumped down my shirt and britches.

Turn your speakers up and enjoy the slide show ==> Slide Show

<img src="http://cdn-3-service.phanfare.com/images/external/4169021_5407861_146794035_WebSmall_3/0_0_0b129d26f6caa057858a32ccc68eb6a7_1">

<img src="http://cdn-3-service.phanfare.com/images/external/4169021_5407861_146794093_WebSmall_3/0_0_6212151215ebdd23cd4f5fb6dac9746b_1">

Samurai Appliance Repair Man

Brother DurhamAppiance delivers today's sermon and illumines us. Let's listen...

Outside temps can affect fridges in many ways. The outside cold air is influencing the thermostat located in your fresh food section. When outside temp drops below 55 degrees, the compressor will be off for longer than usual awaiting temps in the fridge to rise. there is a garage kit that can help you....it should work for your frigidaire made kenmore http://www.repaircli...3918301/1037646

Source: Kenmore 253.68889014 too warm in cold garage

Samurai Appliance Repair Man

This is an excerpt of the full split-phase household power supply webinar held on June 6, 2016. In this excerpt, I explain why antiphase sine waves (meaning 180 degrees out of phase with each other) cancel each other out in a sound mixer but not in a center tapped transformer. Just because an AC voltage can be represented or modeled as a sine wave does not mean all sine waves behave the same way everywhere regardless of the device-- you have to know what you're measuring!

 

References:

Summing Amplifier Basics

How Sine Waves are Used to Model things in the Real World

Using an Oscilloscope to Understand 120 VAC Household Power Supplies

 

Samurai Appliance Repair Man

Brother Bob brings us fresh pearls from Whirlpool Tech line on the latest strangeness going on with these Whirlpool VM washers:

Hi All,

Had an interesting call on a Vertical Modular Washer yesterday and I thought I should pass on the info that Tech Line gave me.

This was actually a Maytag M# MVWC425BW0. Purchased 12/28/13.

Compliant: Customer started a wash, left the house, came back home 5 hours later and washer was still running. Later that night she said that as they were watching tv the washer started up all by itself.

This washer was stuck in the "Endless Test Cycle". Tech Line said that this is used to test the washers before they leave the factory.

Tech Line said that if this was a new washer it would simply mean that someone at the factory forgot to take the control out of the Endless Test Cycle. However, he said that for the past year to year and a half they have been seeing these washers putting themselves into the Endless Test Cycle and the Engineers are stumped as to why this is happening.

To turn Endless Test Cycle On or Off:

Put the washer into Diagnostics, turn the dial to the LEFT (counter-clockwise) until the Wash- Rinse- Done lights are on. Push Start. If the washer powers Off you have just taken the washer OUT of Endless Test Cycle. If the washer starts to Fill you have just put the washer INTO Endless Test Cycle.

If the washer powers OFF, unplug for 5 seconds, plug back in and wait 10 seconds, if the washer does NOT start to Fill you have successfully taken the washer out of Endless Test Cycle.

He said that they have also been seeing replacement Control Boards leaving the factory that have not been taken out of Endless Test Cycle. He said that if you replace a Control on these washers to go in and check to make sure that Endless Test Cycle is indeed turned off.

Source: Whirlpool VMW Washers

Samurai Appliance Repair Man

Starting to get my notes and photos together from an excellent United Servicers Association regional training in Albany, NY. Here's my summary of the training. Dave Shertzer was the instructor; he did a great job. This is a very easy machine to work on. Tears down in about 10 minutes; 15 minutes if you're one-armed, one-legged, or one-eyed.

0_0_1356298aeded38f205724ef29d8ad832_1

You're gonna want a set of these to facilitate electrical measurements on those tiny-ass wire harnesses.

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Inside the control panel the VM washer. Panel comes apart differently. Two clips in front, either end. Can press in with a putty knife or credit card while pushing back on the panel. Can also undo them by reaching underneath the top panel.

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Main control board and water inlet valve inside the control panel, closer look.

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Looking into the tub with the top panel removed. Kind of a funky z-maneuver to get the top panel off. Have to remove the hinge screws in back and then do the z-maneuver to lift off the top panel.

0_0_0d1447a4a718ee382395c203a5d23a16_1

Looking at the drive guts underneath the washer, laying on its front panel. The only two ways you'll be working on this machine: through the top or the bottom, as shown here. Do not remove the back panel.

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Belt cage and belt removed. Motor and main yellow drive pulley.

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Main yellow drive pulley removed. Seeing part of the splutch assembly.

0_0_96b6c1813cd355146a946fc7046dc833_1

With splutch removed.

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Splutch assembly.

0_0_2f58cd61e6754fac880bbff65c2aabb0_1

Mode shifter motor. Shifts the splutch between spin and agitate modes. This has been a common fail item so far in this machine. Very easy to replace.

Samurai Appliance Repair Man

Whirlpool Vertical Modular Washer (VMW) Training Manual

File Name: Whirlpool Vertical Modular Washer (VMW) Training Manual

File Submitter: Samurai Appliance Repair Man

File Submitted: 03 Jan 2012

File Category: Appliance Repair Manual Pot Luck Supper

Job Aid W10329932

Covers models:

MVWC400XW

MVWX500XW

MVWX550XW

MVWX600XW

MVWX700XW

WTW4950XW

WTW5500XW

WTW5550XW

WTW5600XW

WTW5700XW

Click here to download this file

Source: New Appliance Service Manual added: Whirlpool Vertical Modular Washer (VMW) Training Manual

Samurai Appliance Repair Man

The weirdness starts about halfway into the video:

And Master Nickfixit nails it:

recheck the motor harness connections, make sure the harness is fully seated. Some machines had an extra 2 wire harness connection that can work loose, these were 3 speed motors.

Source: Whirlpool washer LA9500XTWO slow agitator and grinding sound

Samurai Appliance Repair Man

May be a bad Thermistor

http://www.repairclinic.com/referral.asp?R=154&N=1181075

Thermistor-8577274-01024578.jpg

from the Tech Sheet - 3977696

Thermistor Test or Dryer Beeps 3 Times When PTS Pressed

An electronic temperature sensor called a thermistor is used in this model in place of an operating thermostat.

The Even Heat control monitors the exhaust temperature using the thermistor and cycles the heater relay on and off to maintain the desired temperature.

Procedure

Begin with an empty dryer and a clean lint screen.

1. Set the following configuration:

Timer Dial - TIMED DRY

Fabric Care/Temperature switch - COTTON HIGH

Signal switch - LOUD

Door - must be closed

2. Press the Push To Start switch.

a. If you hear three short beeps and the dryer shuts off after several seconds,

the thermistor or wire harness is either shorted or open.

Check wire connections at Even Heat control and thermistor.

If wiring is functional, replace the thermistor:

b. If the dryer appears to operate correctly, proceed to step 3.

3. Remove exhaust vent and start the dryer.

a. Turn Fabric Care/Temperature switch to desired temperature to be tested,

and select 20 minutes on the TimedDry dial.

Hold a glass bulb thermometer capable of reading from 90°F to 180°F in the center of the exhaust outlet.

Measure exhaust temperatures with heater off and on.

The correct exhaust temperatures are as follows:

FABRIC CARE/TEMP.

SWITCH SETTING . . . . HEAT TURNS OFF. . . . . . . . HEAT TURNS ON

COTTON . . .. . . . . . . . 150°F . . . . . . . . . 10° - 15°F below heat off

NORMAL/PERM PRESS 140°F . . . . . . . . . . 10° - 15°F below heat off

KNIT/CASUAL . . . . . . . 125°F . . . . . . . . . . 10° - 15°F below heat off

ULTRA DELICATE . . . . . 115°F . . . . . . . . . .10° - 15°F below heat off

b. If the exhaust temperature is not within specified limits, check the resistance of the thermistor.

THERMISTOR RESISTANCE

TEMP ° F . . . . . RES. K . . . . . TEMP. ° F . . . . . RES. K

50° 19.9 100° 5.7

60° 15.3 110° 4.7

70° 11.9 120° 3.7

80° 9.2 130° 3.1

90° 7.4 140° 2.5

c. If the thermistor resistance checks within normal limits, replace the Even Heat control.

http://www.repairclinic.com/referral.asp?R=154&N=1378522

Dryness-Control-Board-W10116565-00699964.jpg

Source: Kenmore Elite electric dryer stops mid cycle

Samurai Appliance Repair Man

Whirlpool Duet washer F1E1 error

If you're getting the f1e1 error code even after replacing the CCU, it means the CCU is (still) bad. Professor of Appliantology john63 gives us the poop on this one:

The F1 E1 error is a checksum error.

The MAIN BOARD is still at fault.

Checksum errors are "fatal errors".

The MAIN BOARD cannot verify internal data. (similar to being disoriented/confused)

http://en.wikipedia.org/wiki/Checksum

Buy the replacement CCU with a 365-day return policy here ==> http://www.repairclinic.com/PartDetail/Control-Board/W10309219/1876151?RCAID=24038

Source: Whirlpool duet washer mod# wfw9250ww01

Samurai Appliance Repair Man

Whirlpool Duet Sport washer with a F9E1 (91) error code

F9E1 (91) LONG DRAIN

If the drain time exceeds 8 minutes, the water valves turn off.

Possible Causes/Procedure

- Ask the customer how much detergent they are using and if it is HE detergent.

May have too much suds present causing this condition.

- Turn washer ON to verify pump operates; run the drain cycle.

- Check the drain hose and make sure it is not plugged or kinked.

- Unplug washer or disconnect power.

- Make sure that wire harness connections at the Drain Pump, Pressure SW, & CCU (DP2, PR6 cavities)

connectors are not broken or with wires detached, and that connector internal pins are visible.

- Check continuity from the Drain Pump & CCU (DP2 cavity) connectors.

- Check continuity from the Pressure SW & CCU (PR6 cavity) connectors.

- If the continuity diagnosis failed, Main Harness must be replaced.

- Make continuity test to the Pressure SW. See page 7.

- Check the resistance of the motor pump. See page 7.

- Plug in washer or reconnect power.

- Run the drain cycle.

- If the failure continues, unplug washer or disconnect power.

- Check the drain pump filter for foreign objects.

- Disassemble the drain pump from the washer.

- Check that the impeller is not detached from the motor shaft.

If the impeller is detached from the shaft, is broken or has any scratches, the drain pump must be replaced.

- Plug in washer or reconnect power.

- Verify the washer operation by performing the Diagnostic Test cycle.

See page 5.

- After the diagnostic test has finished, unplug washer or disconnect power and wait for 15 seconds.

Source: Whirlpool Duet Sport Washer WFW9150WW error code

Samurai Appliance Repair Man

So your Whirlpool Duet Sport or (Kenmore equivalent) washer is leaving your clothes sopping wet at the end of the wash cycle? It seems to be tumbling the clothes okay and it pumps the water out but it never kicks into high speed spin. Sublime Master tronicsmasta has some inside scoop on the fix:

We have gotten tons of complains about it. The recommended fix by Whirlpool is replace the MCU if everything else checks ok.

Check These:

Drain hose not siphoning back into washer,

Inlet Valve for dripping overnight,

Shocks,

Springs,

Level Unit,

Sorting of Clothing (bad sorting = jeans with t-shirts),

Load Size (About 2/3 full max),

HE detergent only (Tide, Gain, Cheer)

Part link ==> Motor Control Unit

Source: Whirlpool duet washer WFW9750WW01

Samurai Appliance Repair Man

Example model number: GEW9200

This problem is caused a bad door switch. Here's the link to the door switch, click the picture:

00830597.jpg

You can test using an ohmmeter. There are 3 prongs on switch, identified as C,NC, and NO.

C-NC should be closed circuit until you push switch and then it should be open.

C-NO should be open circuit until you push switch and then read closed.

Buying the switch through this site is a risk-free proposition because you can return the switch for a refund if that doesn't fix it. :rolleyes:

Samurai Appliance Repair Man

DSI Monitoring System:

When power is applied to the range, a safety delay of 40 seconds takes place before the direct spark ignition control becomes operational. The 40 second delay allows any unused gas inside the oven cavity to dissipate before a spark is activated. When the Bake or Broil operation is activated, the direct spark ignition control initiates an “internal self-test” and “flame safety check.” The flame safety check takes place anytime there is a flame present at either oven burner.

The self-test checks both solenoids on the gas distribution valve to verify that they are properly connected. If they are not, the control will turn the oven off, or lock it out. If the test is successful, the control will then open the appropriate valve, and initiate sparking at the

burner ignitor. Both the bake and broil ignitors spark simultaneously. Sparking will not occur until the gas distribution valve opens.

Once the gas has ignited, the “flame safety circuit” will monitor the flame at the burner to make sure it is present. If a flame is not present at the burner:

a)The control will allow the ignitor to spark for 4 seconds.

b)A 40 second delay to dissipate any unused gas inside the oven will occur.

The ignition attempt will occur three times. If the burner does not ignite after the three attempts, the system will “lockout”

Lockout:

The control will perform an oven system lockout if:

a) Any of the self-test checks fail.

B) The oven fails to ignite after three ignition attempts.

c) A flame is present within the oven for more than 10 seconds after the gas valve is off.

d)The flame is unexpectedly lost for any reason after being established.

NOTE:

If this occurs, a lockout condition will occur after 30 seconds with no attempt to reignite.

During the lockout, the gas distribution valve and ignition are turned off. All lockouts can be reset by pressing the OFF/Cancel keypad on the Electronic Oven Control.

NOTE: There will be no indication on the electronic oven control display showing a lockout condition.

Source: Whirlpool SF362LXSB Gas Oven Keeps Shutting Off

Samurai Appliance Repair Man

Tub bearing failure and seal leaks are just one of the repair joys that await the unsuspecting owner of these machines, especially if you're using non-HE detergent. Used to be that when the tub bearing or seal failed, you have to replace the entire tub because Whirlpool didn't sell the bearing and seal separately. The tub assembly alone runs $300 Part number: AP5306816

Part number: AP5306816

After much wailing and gnashing of teeth from both victims, er, I mean owners of these machines and the professional appliantologists who work on them, Whirlpool finally got the message and recently made the tub bearing and seal kit available as a separate repair kit without having to buy the entire tub assembly at considerable cost savings to the consumer.

The bearing and seal kit itself runs about $75 and is available here Part number: AP5325033

Part number: AP5325033

And you'll need a special $60 tool to install it Part number: AP5325072

Part number: AP5325072

If you're a DIYer doing this job, you'll probably only use the tool once in your lifetime. But still, even with the tool, the total parts cost is $135, less than half of what it used to cost when replacing the entire tub assembly.

Since this kit is so new, there's no info yet on how reliable this repair is-- replacing the bearing in a plastic tub which itself is prone to deformation and causing leaks-- vs. replacing the entire tub assembly with a factory-installed bearing. But at this kind of cost savings, it's worth a shot!

gallery_4_5_773565.jpg

Source: From: Cabrio Washer Tub Bearing And Seal Replacement Kit

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