Don't answer that, LOL. I just pulled it apart and found exactly the same thing. The solder/track was burnt off the relay, so I am soldering a wire back on again.
OK. All fixed. I soldered a piece of wire in place of the burnt track and viola!!! It works!
Here are the instructions on how to pull the controller board out and repair it.
DO THIS FIRST!!!
*Remove the plug from the power socket!
*Remove the inlet hose from the tap.
*Remove the outlet hose from the sink pipe
1/ Open the door of the Dishwasher and remove the six screws at the top of the inside of the door that hold the front control panel in place, being careful to support the panel with one hand, so it doesn't hang from the last of the screws. See pics below.
http://angelmansyndrome.org/download...B/IMG_4134.jpg
Remove the 2 screws above.
http://angelmansyndrome.org/download...B/IMG_4137.jpg
Remove the 2 outer screws above (not the ones either side of the latch slot)
http://angelmansyndrome.org/download...B/IMG_4136.jpg
Remove the 2 screws above.
2/ Close the door whilst supporting the CP with one hand and tilt the top of the control panel forward and slide it up and out.
3/ Carefully let the CP hang from it's own wires. See pics below.
http://angelmansyndrome.org/download...B/IMG_4129.jpg
4/ Remove the controller from the CP by carefully flexing the 4 plastic lugs inwards. See pics below.
http://angelmansyndrome.org/download...B/IMG_4130.jpg
I found it easier to lever the 2 lugs first that are on the wire side (top of pic) of the controller and then slide the controller sideways to remove it from the bottom lugs of the CP.
http://angelmansyndrome.org/download...B/IMG_4132.jpg
Bottom lugs at either side of of the controller near bottom of pic.
http://angelmansyndrome.org/download...B/IMG_4131.jpg
Close up of left bottom lug.
http://angelmansyndrome.org/download...B/IMG_4127.jpg
Controller after removal from the CP.
5/ After removing the controller from the CP, locate the 4 lugs (2 on each side) that hold it closed and flex the lugs carefully with a screwdriver so they are released from the matching part. Once you have done this, the controller should open up and hinge on one side.
http://angelmansyndrome.org/download...B/IMG_4119.jpg
Controller after it has been opened.
6/ Carefully remove all the plugs on the front of the controller. You will have to pry the front edge of the plastic case to slide them off.

Controller after the plugs have been removed.
5/ Carefully lever the front edge (where the plugs were removed) of the circuit board up and slide it forward.
6/ Locate the relay and flip the circuit board over.

Relay on circuit board.
7/ Inspect the bottom of the board where the relay is and see if it has a burnt track. See below.

Burnt track under relay.
8/ If there is no burnt out track, then this is not your problem. You will have to search these forums for another cause of the water heater failure or somehow obtain a service manual to locate the water heater to test.
9/ Clean the circuit board where the track is burnt with a tooth brush or the like.
10/ Prepare a copper wire and tin with solder. Solder this between the pin (that is now not contacting the circuit on the bottom of the relay) and the track that it was originally soldered onto.

Copper wire soldered between relay pin and track.
11/ Replace the circuit board, by sliding it back into the back of the case under the plastic lugs and pushing the front (where the plugs were located) of the board down.
http://angelmansyndrome.org/download...B/IMG_4125.jpg
Circuit board has been put back into place.
12/ Attach all of the plugs to the front of the board again and ensure that they are pushed fully forward and clip under the front edge of the case.
http://angelmansyndrome.org/download...B/IMG_4126.jpg
Plugs attached to circuit board.
13/ Close the controller case again and push the controller back into it's plasic lugs on the CP, ensuring that
the multiple light lens gismo, is place into the holes on the inside of the CP before closing the case.
http://angelmansyndrome.org/download...B/IMG_4138.jpg
Multiple light lens gismo.
http://angelmansyndrome.org/download...B/IMG_4129.jpg
14/ Place the CP back into the top of the door tilting it forward at the top. Locate the lug on the bottom of the CP and align it into the slot on the bottom of the CP cutout on the door. Push the top of the CP forward until it clips into place.
15/ Screw the CP in with the 6 screws on the underside of the door.
That's it! Your all done. Don't forget to reconnect the outlet hose to the sink pipe, the inlet hose to the tap and plug the power cord into the socket before turning the dishwasher on again.
~John