LTEL7337D (ABDLLGA) LG Wall Oven

Unplugged oven electric and turned gas off. Removed all back covers from the unit. Removed the cover on the inside covering the burner and fan in the back of the convection oven. Removed the nut securing the fan to motor shaft with helper holding the motor. Removed the three electrical wires attached to motor, making note where they go. ... Read more Removed screws mounting the motor to oven. Removed motor cooling fan and shaft spacer from old motor. Fit in same orientation on new motor. Replace all parts in reverse order, restore gas and electric, turn on and test.

Dropped a hammer on the range while removing a ceiling light. Viewed a How-To video on Google. Ordered the needed parts. Followed the steps from the How-To video. Reinstall was a bit tricky by myself - could have used an extra set of hands. I have a few words of caution:
1) Put something between the range top and range - like a ... Read more sheet or drop cloth - to prevent a dropped screw from falling into a crevice in the stove. I dropped a screw and was unable to retrieve it, even with a magnet.
2) Makes sure you remove all bumpers, screws, clips, etc. from the item being replaced and put them on the new item if the new item does not come with replacement bumpers, screws, etc.

Trouble shooting took much longer than repair. Not obvious but a flow diagram in the LG service manual pointed towards a defective bimetal thermostat switch on the range inner back wall. The switch contacts tested bad when cold and this condition locks up the power module board to where it does not supply any DC power to the master contr ... Read more oller board - thereby shutting down all oven operations. Thermostat is accessed after removal of the back panel via mounting screws plus removal/re-attaching unit spade lugs (needle nose pliers) plus removing/replacing the thermostat via one mounting screw. Phillip screw driver needed for panel access and thermostat disconnect. While I did in the course of troubleshooting, there is no real need to remove the oven top unit. Very inexpensive repair.