My dishwasher had a trouble code 4 after entering the Test program. I removed the circuit board and found the heater relay soldier joint was burnt. I resoldered the connection and ran the Test program again. This time I got a trouble code 2 and the dishwasher runs continuously without completing its cycle. I performed the troubleshooting as called out in the PDF tips and the only problem I found was that the resistance on the NTC probe shows open. I checked it from the two brown wires 15-1 & 15-2 at the contol board connector and then checked it at the connector where the two green wires connect directly to the probe and do not get a reading. Both areas show an open NTC PROBE. Does this sound like the probe is the problem? Code 2 is a heating fault, the dishwasher sounds like it is continually draining forever and all resistance checks are normal except for the NTC probe. I don't have a coil type ammeter so I wasn't able to measure the amperage during the heating cycle. Thanks for you assistance.