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WDC

Member Since 16 Apr 2012
Offline Last Active Apr 18 2012 06:40 PM

Posts I've Made

In Topic: Maytag Neptune MAH3000AWW Reoccurring PCB (control board ) trace burning

18 April 2012 - 06:43 PM

After careful review the two burnt tracers (looking out the photo) starting from down the top is tracer number 2 and 3. When I referenced P4 it was a broad description of the location which I shouldn't have done.

Tracer number two (second from the top) you can see just to the right is a solder point which on the other side of the board is actually labeled JP13 which is a jumper wire right alongside P4. When I follow track number three to the left, it terminates at the first pin terminal on P7.

Regarding your other points I had checked fairly closely each of the connector points and each seems to be typed in a good connection with no heat or burn marks. I have not tracked down the wire loom checking for frayed spots along the wire but I will based on your recommendation.

If any of this sheds light on your analysis your comments would be greatly appreciated

In Topic: Maytag Neptune MAH3000AWW Reoccurring PCB (control board ) trace burning

18 April 2012 - 06:40 PM

My gut feeling is that you are probably right about placing the machine unfortunately in these economic times if I can replace a $100 component versus a several hundred dollar machine it would sure help.

Thanks for your comments

In Topic: Maytag Neptune MAH3000AWW Reoccurring PCB (control board ) trace burning

18 April 2012 - 06:36 PM

Clarification regarding burnt trace and P4



After careful review the two burnt tracers (looking out the photo) starting from down the top is tracer number 2 and 3. When I referenced P4 it was a broad description of the location which I shouldn't have done.

Tracer number two (second from the top) you can see just to the right ,is a solder point which on the other side of the board is labeled JP13 a jumper wire right alongside P4.

When I follow track number three to the left, it terminates at the first pin terminal on P7.

Regarding your other points I had checked fairly closely each of the connector points and each seems to be typed in a good connection with no heat or burn marks. I have not tracked down the wire loom checking for frayed spots along the wire but I will based on your recommendation.

If any of this sheds light on your analysis your comments would be greatly appreciated

In Topic: Maytag Neptune MAH3000AWW Reoccurring PCB (control board ) trace burning

18 April 2012 - 01:45 PM

I should also add that whereas I suspected the motor controller, all of the diagnostics as referenced above check out fine, so I do not believe this is the problem. Also after removing the motor controller and inspecting a closely front and back there are no heat marks or signs of damage. One could also be suspect of the water valves since the unit runs water nonstop and sometimes the temperature is not in accordance with the selector, but it does not run water if the power is off or in delayed start, so it is likely operating in accordance to the signal it is getting.

This is however, an interesting clue, regardless of the position of the water temperature selector buttons warm water runs so both solenoids are opening, even after switching out the selector switch.

In Topic: Maytag Neptune MAH3000AWW Reoccurring PCB (control board ) trace burning

18 April 2012 - 12:59 PM

I should add that both control boards overheated and burn the traces in the same location. There does not appear to be any other damage to the board other then the overheated trace as photographed. If possible I would like to try to jump the trace and save the board.

With that said it appears that whatever the problem is, it is burning the board in the same place.


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