Blown Resistor. Valve is char-broiled.
What's the chance of repairing one of these?
Anyone got a good one in their truck they can read a R-value for me?
Any reliable rebuilders out there?
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Neptune MCB
Started by
Guest_Roger_*
, Apr 09 2005 12:02 PM
11 replies to this topic
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#2
Samurai Appliance Repair Man
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- Fermented Grand Master
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- 24,296 posts
Your Sometimes-Lucid Host
- Location: USA
- Flavorite Brew:Kirin Ichiban
Posted 09 April 2005 - 06:07 PM
This fellow says he has a fix for it. Never tried it myself, been meaning to; got several of these crispy critters kicking around.
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#3
Guest_Roger_*
Guest_Roger_*
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- Lurking at the Threshold
Posted 10 April 2005 - 11:57 AM
Most honorable SARM-sam, thank you for not beheading me as I stood at the door peering in.
I'm going to try that fix mentioned at the link you provided. All I have to loose is about $30 and a small peice of my pride if I have to cut an additional $250 check for a new MCB.
However, as replacing the Door Lock Wax Motor is required, I'd like to retrofit my MAH3000AWW to the new Solenoid Door Lock mechanism.
Do you know if that's possible, either officially or otherwise?
I will report back everything I've discovered at the end of this quest.
I'm going to try that fix mentioned at the link you provided. All I have to loose is about $30 and a small peice of my pride if I have to cut an additional $250 check for a new MCB.
However, as replacing the Door Lock Wax Motor is required, I'd like to retrofit my MAH3000AWW to the new Solenoid Door Lock mechanism.
Do you know if that's possible, either officially or otherwise?
I will report back everything I've discovered at the end of this quest.
#4
Guest_Roger_*
Guest_Roger_*
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- Lurking at the Threshold
Posted 11 April 2005 - 05:50 PM
Oh great Samurai Master, I've digested the available information and executed an integrated repair that's 100% successful and reliable. Unlike some suggested, I chose to replace Components with identically rated pieces.
If your Neptune Washer doesn't Spin in the Spin Cycle and the "Door Locked" indicator light is not illuminated, then you have a Shorted (perhaps intermittently) Door Latch Wax Motor and a blown Master Control Board (probably R11).
The Components on the MCB directly effected are R11 and Q6. Others mentioned as potentials are R43 and Q2.
First, install the new Wax Motor Kit, Maytag #12002535 ($17 retail).
Second, remove and replace the Components called out in this photo (about $2 retail).
R11 a 3.9K Ohm Carbon or Carbon Film Resistor
Q6 a Triac NTE5656
R43 a 18K Ohm Carbon or Carbon Film Resistor
Q2 a Transistor NTE288
Some of these may not have failed, but for a total parts bill of under $2, replace them all and consider it a belt-and-suspenders solution.
Lastly, if you're suspicious of an identical future failure you can cut and install an in-line Fuse on the Brown Wire (Plug 7, Pin 4), (Holder Kit and pack of 500mA Fast Blow Fuses, about $5). Consider this the belt-and-suspenders and stay home solution.
Note: this Board is not built to withstand all but the slightest heat soaking so the Solder Leads were trashed at R11 and required some creative scraping and soldering. And jumpers for good measure.
Samurai, if you email me your email I can forward a photo of the toasted MCB "with the lines and arrows and captions".
Roger
If your Neptune Washer doesn't Spin in the Spin Cycle and the "Door Locked" indicator light is not illuminated, then you have a Shorted (perhaps intermittently) Door Latch Wax Motor and a blown Master Control Board (probably R11).
The Components on the MCB directly effected are R11 and Q6. Others mentioned as potentials are R43 and Q2.
First, install the new Wax Motor Kit, Maytag #12002535 ($17 retail).
Second, remove and replace the Components called out in this photo (about $2 retail).
R11 a 3.9K Ohm Carbon or Carbon Film Resistor
Q6 a Triac NTE5656
R43 a 18K Ohm Carbon or Carbon Film Resistor
Q2 a Transistor NTE288
Some of these may not have failed, but for a total parts bill of under $2, replace them all and consider it a belt-and-suspenders solution.
Lastly, if you're suspicious of an identical future failure you can cut and install an in-line Fuse on the Brown Wire (Plug 7, Pin 4), (Holder Kit and pack of 500mA Fast Blow Fuses, about $5). Consider this the belt-and-suspenders and stay home solution.
Note: this Board is not built to withstand all but the slightest heat soaking so the Solder Leads were trashed at R11 and required some creative scraping and soldering. And jumpers for good measure.
Samurai, if you email me your email I can forward a photo of the toasted MCB "with the lines and arrows and captions".
Roger
#5
Samurai Appliance Repair Man
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- Fermented Grand Master
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- 24,296 posts
Your Sometimes-Lucid Host
- Location: USA
- Flavorite Brew:Kirin Ichiban
Posted 12 April 2005 - 04:23 PM
Great report, Roger! Yes, please email me the photos you have and I'll post 'em. samurai AT fixitnow.com
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#6
mopar X
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- Master Appliantologist
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- 76 posts
Yamabushi
Posted 18 April 2005 - 04:02 PM
Neptune board resistor locations
Attached Files
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Maytag Neptune.pdf 428.95K
40 downloads
#7
Mad Mac
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- Academy Fellow
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- 1,432 posts
Sensei
Posted 26 April 2005 - 06:17 PM
There's an excellent site on this subject at
http://members.shaw.ca/gavb/
(Edit: which Samurai mentioned above :bathead: )
http://members.shaw.ca/gavb/
(Edit: which Samurai mentioned above :bathead: )
Mad Mac....Pray to God he's out there....somewhere.
#8
The Seven
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- Master Appliantologist
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- 190 posts
Sōhei
Posted 11 May 2005 - 05:42 AM
Are these Neptune still smelly?
The Seven
#9
FatMan
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- Master Appliantologist
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- 233 posts
Sōhei
Posted 11 May 2005 - 07:05 AM
[user=7]The Seven[/user] wrote:
Only if you open the door!:poison:Are these Neptune still smelly?
#10
Guest_hason3_*
Guest_hason3_*
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- Lurking at the Threshold
Posted 11 October 2005 - 04:50 PM
i replaced r11 and its still smoking
#11
Moostafa
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- The Ayatollah of Appliantology
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- 765 posts
Senpai
- Location: non-US or Canada
- Flavorite Brew:Poppy Salmagundi
Posted 11 October 2005 - 06:26 PM
Hello, my smokey friend. Back in my days as a Mujaheddin warrior, I once hired a rancid Pakistani to set fire to Lord Vladimir's tie during the invasion of the Soviet infidels. It was only by the grace of Allah (and the enforced largess of the timid and compliant Ameedican taxpayer) that we, a motley and unruly crew of Afghani patriots, would successfully repel an heavily-armed, industrialized, northern European nation.
From this great historical lesson, I infer that you must locate the source of the smoking: the motor? the machine control board? that rancid Pakistani's bowels? Let us think on these things.
From this great historical lesson, I infer that you must locate the source of the smoking: the motor? the machine control board? that rancid Pakistani's bowels? Let us think on these things.
Allahu Akbar!
#12
Budget Appliance Repair
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- Academy Fellow
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- 3,999 posts
Sensei
Posted 12 October 2005 - 01:47 AM
[user=0]hason3[/user] wrote:
So, is that all you replaced r11?
If so, then that is your problem. You did not correct the problem that originally burned out r11.
You must read all the info and the links, (words in blue), in this discussion to correctly do this repair.
If r11 is burned the orginal problem that caused this part to fail has to be replaced first, (that would be the door latch "wax motor"). Also you must replace the q6 triac that controls the wax motor door lock circuit.
i replaced r11 and its still smoking
So, is that all you replaced r11?
If so, then that is your problem. You did not correct the problem that originally burned out r11.
You must read all the info and the links, (words in blue), in this discussion to correctly do this repair.
If r11 is burned the orginal problem that caused this part to fail has to be replaced first, (that would be the door latch "wax motor"). Also you must replace the q6 triac that controls the wax motor door lock circuit.
William Burk (Willie)
Willie's Budget Appliance Repair
Eureka, CA 95501
Willie's Budget Appliance Repair
Eureka, CA 95501
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