RF378LXKB0 Whirlpool Range - Instructions

I didn't. Don't know how to get to light bulb to change it for this specific model

As a former appliance repairman, the installation went just like the repair instruction video.
Just use care not to scratch anything and clean behind the appliance and cabinet walls, etc. It's worth a hug and a piece of pie!

Following your installation, the old part came out easily, with new part installing easily., oven heat is being regulated properly..with range pulled out for part replacement, got that area cleaned too

Removed two screws and the front of the door popped off. Replaced the bottom metal piece that the glass front slides into. It was a piece of cake.

the hardest part was moving stove to trplace part

It went great. I am not very handy, but with a little help from your website reviews, I was able to easily remove the old broiler element and replace it with the new one in less than an hour. I immediately tested it and found that it worked great.

Unplugged unit from wall.
Unscrewed the two screws on at he back of the oven where the element is attached
Removed old element by pulling apart the connectors.
Attached new element to the connectors.
Replaced cover with the two screws.

I watched the video you provide and it answered all my questions. You estimate repair at 10 minutes. My wife said I waz done in under 10 minutes Watch the video, it explained every step and all the little tricks to the snap connections.

I watched the repair video on this site and another on YouTube before I started. The rear panel has a different shape and two additional screws on the bottom edge. The power clip was easy to manipulate.
This was an easy fix for a seventy year-old like me!

After identifying the part and taking delivery of it, I opened the breaker for the unit and then removed the range top by taking out 2 Phillips screws and lifting the part away from the hinges in the back. The element was attached with only 2 spring loaded clips which I then removed, noting the numbered position of each. I then photographed the wiring (x4) from several angles and removed each of them. I attached the clips to the new element and reconnected the wiring to the main heating element and the sensor per the photographs. The element was then re-positioned into its mounting slots, the range cover was reattached with the screws and the unit tested once power was restored.

1993 model oven, built in wall model, so didn't to remove oven for the normal rear access to replace the lamp socket. As someone else posted, replacement can be done from inside the oven -- BUT the socket removal was more complex than just 'twisting it out.' But below worked! (1) Turned off oven power at circuit breaker panel. To facilitate working in the oven compartment, removed oven door (2 screws on back of door), raised the over door almost closed, put 2 large nails through the hinge holes when they lined up. Lifted the door out (heavy ~20-25 lbs) and put aside. (2) Put work light inside oven. (3) unscrew glass socket lens and the bulb). (3) Using inspection mirror, studied the inside of the socket to determine that its lock tab type and locations -> were on left and right sides of the socket. These tabs needed to be bent in, but they were each held out by a small circumferential length of think metal, a tab about 3/16" x 3/8". These small tabs could be moved/positioned by just finger friction, with a little start with a screwdriver tip on their edge! I got an end positioned to put sharp screwdriver under that end, then pried it (bent it) inward a short distance. Enough to use needle-nosed pliers to pull it completely out - came fairly easily. Repeated on other side of socket. (4) Then, with pliers, bent each of the 4 locking tabs inward a short distance, Used sharp tool to get one socket edge lifted a small amount; then use mini-pry bar and screwdriver to gently pry around the socket in steps, working evenly around its edge. At about 3/8", it was free. Lifted it inward gently so as not to damage the insulation of the 2 wires attached to its rear. Noted the direction of the wire tabs was straight up (keep same orientation on new socket). (5) Needle-nosed pliers on each connector to gently work the connectors off their socket tabs. Note one tab is larger than the other. Keep the wires inside the oven compartment. Don't damage the insulation. (6) Pushed the wire connectors onto their respective new socket tabs. Aligned socket with the tabs upward, and inserted it, careful to nurse the wires back into the oven wall hole; press socket into the hole, pushing it in evenly and firmly until flush. (7) Pushed in the new type bulb that came with new Socket. Turned on power, and light came on. (8) screwed on new glass cover. (9) Lifted oven back onto the hinge prongs. (easier with two people to get the prongs aligned and into their door slots.) Worked door left and right to get it to lower down fully. Removed nails, lowered door, and put its 2 screws back on. (10) Poured a glass of wine.

Replaced bottom trim included in kit.
Installed side door trim.
While trying to slide glass front in place both plastic side trims broke.
Had to use already broken door trim and glued in. Just hope when use oven glue doesn’t melt and will have to replace entire oven.

Unpluged range for safety (power earlier removed by circuit breaker turnoff).
Removed two screws from front switch cover.
Removed knob from effected switch and removed the wires on the back of the switch.
Removed two screws holding switch and removed switch.
Reversed the process to install new switch.
The entire project took about ten minutes.

Turn off power, remove damage knobs and element, clean up burner and scorched surfaces, order parts, when received, installed

Very easy. Pulled the stove away from the wall. Used a screw driver to remove the two nuts to release the heat sensor, disconnected the wire, removed the sensor. Inserted the new sensor, plugged back into the circuit. put the two nuts back.
Beware, if the first time you put the oven on, if the error message comes back up (mine did) push the cancel/off button, wait a few minutes, put oven back on. System probably needed to reset. Mine worked perfectly after.