My DW wouldn't start, so I thumped the timer dial and she started and of course that is not a permanent solution.
Where can I get a blow-up diagram, so I can attack the problem and replace the timer?

I'll need your entire model number to get the break down you request. Remove the screw holding the knob on the latch lever then remove the knob. Open the door and remove the screws on both sides and the top. Two of those screws will be different than the others, remember where they went. Close the door and move the latch lever half way closed then the inner door will seperate from the outer door. The timer is right there and easy to access.

__________________
SERVICE TECHNICIAN: BEEHIVE APPLIANCE....... 1985-1988
SERVICE TECHNICIAN: HANSEN REFRIGERATION. 1988-1998
OWNER/SERV TECH: RICK'S APPLIANCE REPAIR...1998-2001
SERVICE MANAGER:Used Appliance store..... 2004-PRESENT
ONLINE SERV TECH: ApplianceBlog.com ApplianceJunk.com
LINCOLN TECHNICAL INSTITUTE:..................... 1977-1979
CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

I removed the door panel and into the timer mechanism, I sprayed Deoxit D5 spray.
The stuff removes corrosion and promotes conductivity (unlike WD-40).
MY DW seems as good as new and it looks like a simple thing to replace the timer, if I need to in the future.

I'm glad you got it working. If the points inside the timer are arching and getting a carbon build up, that might have cleaned them enough to work for a while. Unfortunatly, the other problem with the points is the heat starts to warp the arm untill they fail to make contact any longer. Hopefully it will last for a while. Still need model number if you want timer part number.

__________________
SERVICE TECHNICIAN: BEEHIVE APPLIANCE....... 1985-1988
SERVICE TECHNICIAN: HANSEN REFRIGERATION. 1988-1998
OWNER/SERV TECH: RICK'S APPLIANCE REPAIR...1998-2001
SERVICE MANAGER:Used Appliance store..... 2004-PRESENT
ONLINE SERV TECH: ApplianceBlog.com ApplianceJunk.com
LINCOLN TECHNICAL INSTITUTE:..................... 1977-1979
CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

GSD 3830Z044WW
SN FV838200B
AND, thanks for your fast reply

Part# WD21X10015 Timer

__________________
SERVICE TECHNICIAN: BEEHIVE APPLIANCE....... 1985-1988
SERVICE TECHNICIAN: HANSEN REFRIGERATION. 1988-1998
OWNER/SERV TECH: RICK'S APPLIANCE REPAIR...1998-2001
SERVICE MANAGER:Used Appliance store..... 2004-PRESENT
ONLINE SERV TECH: ApplianceBlog.com ApplianceJunk.com
LINCOLN TECHNICAL INSTITUTE:..................... 1977-1979
CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

The timer in my DW is a SIEBE APPLIANCE CONTROLS.
418-001-20
NM 03 MARCH 99
I am guessing that it was a replacement part.
We have lived in this house for 3 years and the house was built in '99
Al