Hi there,
There might something that went wrong on the door latch mechanism. You might need to check the latch motor or the motor driving circuit to see what's preventing it to go to OPEN position. But before doing that, please try to run the LOCK MOTOR TEST by following below steps..
ENTER AND EXIT THE DIAGNOSTIC MODE
To perform the ERC diagnostic tests, follow the steps below:
1. To initiate the ERC test mode, first remove power to the
appliance for approx. 8 seconds and then reapply power.
2. Simultaneously press the COOKING TIME, DELAY START
and number 8 pads. The word "tESt" will appear in the
ERC display. NOTE: If no keypad entry is made within 5
minutes, the ERC test mode will "time out".
3.LOCK MOTOR CYCLE TEST - The lock motor
cycle test allows you to run the latch assembly through
one complete cycle of operation, testing motor
operation and front & rear latch switch contacts. To
perform this test, push and hold the SELF CLEAN key
pad - make sure that the oven door is closed (light
switch depressed). While depressing the SELF
CLEAN pad the lock motor will run through a complete
cycle. Watch the ERC display closely as it will change,
based on the location of the motor and the position
(open or closed) of the latch switches.
Illustrations A, B, C, and D show the sequence of
events that will occur during the complete lock motor
cycle, as well as what will be seen in the ERC display.
Notice that the numbers shown in the left side of the
display represent the position of the lock motor as well
at the contact positions (open or closed) of the latch
switches.
DOOR LATCH MECHANISM
The latch mechanism is thermally Controlled.
When the SELF CLEAN cycle is selected and the
oven sensor senses a temperature between 560°F
and 650°F, the ERC supplies power to the lock
motor, driving the motor towards the LOCKED
position. When the lock motor reaches the
LOCKED position, the micro-switches on the lock
mechanism signal the control board to stop the
motor, leaving it in the LOCKED position.
When the oven sensor senses a temperature of
approximately 300°F. the control board once again
supplies power to the lock motor, driving it towards
the UNLOCKED position. When the UNLOCKED
position is reached, the micro-switches on the lock
mechanism signal the control board to stop the
motor, leaving it in the UNLOCKED position.
3. To terminate the ERC test mode, press the CLEAR / OFF
key pad.
If you can't see the lock moving during diagnostic then you might want to check the mechanism and circuit. I suggest ask help for an expert technician to do it for you but in case you want do it, here is the diagram on how to access the mechanism and also the circuit diagram..
Goodluck and I hope I was able to help.
Regards,
Jeep Brainy