I can not find a service manual for this unit. The customer says his daughter was trying to get ice out of dispenser when the dispenser jammed up. She forced the ice out of the unit but now the temp and dispenser controls are dead. I tried to check voltage out of the main control board on Pin 4 J1 to J2 but got 0 A/C volts. Pin 1 to Pin 3 and Pin 2 to Pin 3 read 48 vac. I thought the main control board was bad and ordered and replaced the main board but display and dispenser are still dead. I am now thing that Dispenser interface board WR55X10776
is bad but I also see that their is a display lighting board WR55X10889
. Don't want to order another wrong part so any assistance will be greatly appreciated. I should also say that the refrig seems to be working fine just not the dispenser and temp display. I have the tech sheet but it is not of much use since it does not tell you what voltages to expect.