MBC12GAZLSS General Electric Refrigerator - Instructions

I found if I would put pressure on one connector on the board the unit would come on. So the board had a short. I ordered it, it came in 24 hours and I installed it and problem was solved.

Removed shelves from freezer section and removed protective cover using a screwdriver and nutdriver. 5 screws.
Upon removal of the cover, I noticed the coils totally cover with ice. At this point I noticed that the defrost heater was burnt out. I removed the heater using screwdriver and pliers and tested the heater according to instructions from Parts Select website.
Since the coil was exposed, I also tested the defrost thermostat according to Parts select instructions and found it to be working properly. i also tested the defrost timer and found it OK.
I replaced the heater, closed the protective cover, replaced the shelves and plugged the unit on.
It has been working just fine since then..
In addition to saving money, i saved myself the agravation of looking for a repairman and having to wait for THEIR convenience to to the work.

Remove and empty ice maker from freezer . Remove two screws from bottom to remove the front panel (cover bucket). Remove one screw which holds the deflector on top of the bucket.(tray which holds the ice curbs). Remove one screw that holds the clip that holds the wire actuator rod.

To remove the the ice crusher/dispenser mechanism from the bucket I used two table knives Spread one side of the bucket with one knofe and pry up with the other to get the retainer wedge free from the bucket side. Repeat on the other side. Once the retainer wedges are free the ice crusher/dispenser with the auger attached can be lifted free from the bucket.

With a spanner wrench remove the nylon nut from the shaft. NOTE: THIS IS A LEFT HAND NUT. Note the orientation and relationship of the crusher blades. They must be replaced properly for the system to crush ice and dispense cubes correctly. Remove blades and spacers from Auger.

Reassemble in reverse order. Be sure to get the actuator rod in place in the cam for the dispensor cover before sliding the crusher/dispenser mechanism totally in place. If not in the cam correctly the crusher/dispenser may have to be removed again.

Although a little difficult the first time the project is easily done by an adventourous handy person.

Used by pass filter and problem disappeared. Of course wayer is now unfiltered. This is a GE design flaw. Also replacement filters are outrageously expensive and do not last long. We have good water here and I'll stick with the bypass.

Took panel off back of inside of freezer section, took off old sensor from the evaporator, spliced new sensor into the existing wires, waterproofed spliced connections, snapped sensor back onto evaporator, then put panel back on the inside of the freezer. Really, it took only 10 minutes to fix. Now refrigerator defrosts like it used to, and temps have settled in at specified temps.

Cause: Failed relays on main circuit board. Fix: Main circuit board replacement: Unplugged refrigerator. Removed 10 screws securing main circuit board metal cover (located on back of refrigerator) using a nutdriver. Disconnected 7 multi-pin electrical connectors from the circuit-board by firmly pulling each connector from the circuitboard sockets using a needlenose plyers. Depressed the small locking prong on each of the 4 plastic circuit board mounting pegs while pulling the board off the mounting pegs.
Pressed new board in place over mounting pegs. Re-plugged in all connectors (no confusion because each connector has unique pin counts). Replaced all mounting cover bolts, making sure to pin green ground wire to last bolt. Plugged in refrigerator. Done.
Note: I determined the main circuit board was bad by removing the auger motor assembly from the freezer and testing the auger motor harness power pins. AC voltage should jump when ice demand lever is pushed (while pressing the internal door light off switch). If no voltage jump, then auger motor relays on main circuit board have failed, indicating board replacement is needed.
Another check would be connecting an extension cord to the auger motor terminals and plugging it in. Motor should run. If it does, then motor is good and main circuit board is bad. If it doesn’t then auger motor is bad and needs replacement.

I have unlock the black panel. With a screw driver I have removed 2 screws and removed 3 conectors from circuit board. So, I had access to solenoid set. From this point on was intuitive. Very easy.

I recomend these parts be replaced once time for each two years.

after finding the video describing the same problem, i gave it a shot. Major problem was figuring out how to take outside trim off of the ice/water dispenser. Everything i tried did not work like the videos i had seen. Looking thru some of the posted blogs i found another way to get behind the control panel without even taking off the trim piece. i pressed a 1/8th allen wrench into the two outer holes on the bottom of the control panel which released the panel to pull out from the bottom. after that it was simple to release the three plugs from the circuit board and remove the control panel. 4 phi lips screws later the ice chute comes straight out revealing the flapper door which is held in by 2 more screws. once that assembly is out the solenoid is held by three more screws. there was nothing difficult at all about this repair once the secret was out about the first step about the three holes (use only the outer two) in the bottom of the control panel

Very easy repair to do. Read instruction sheet before starting! Unplug unit prior to removing panel cover.

Remove three hex head screws holding control panel cover in place and reveal the circuit board.

Remove all the wiring harnesses by gently pulling them from the sockets on the board. Do not pull the wires - make sure you pull on the plastic socket so that the wires aren't damaged. If plugs seem tight use needle nose pliers to gently wiggle them out. Remove earth (green) wire from spade connection on fridge chassis. The new board has a slightly different connection for the earth wire.(No spade connector - wire now has a ring connector that attaches between panel cover and fridge chassis using one of the hex head panel screws when the cover is replaced.

Using needle nose pliers locate four plastic mounting tabs holding the board in place and squeeze in the end of each tab whilst gently pulling the board off it. Repeat for all four tabs and remove old circuit board.

Making sure the new board is the right way round locate it on the plastic tabs and push gently until you hear the tabs click. Gently pull the circuit board to ensure it is locked in place.

Re-install all the wiring harnesses. Put a hex head screw through the cover panel and slip the earth wire ring over it and screw panel to chassis. Replace two remaining hex head screws and plug fridge back in.

Voila!! No more ticking sounds and a plentiful supply of ice and water!!

Noticed the problem in November 2009. Replaced Hi Limit Sesor for Defrost thinking it was the freezor temperature sensor. Did not fix the problem. Replaced Motherboard. Did not fix the problem. Called Sears Repair. They mis-diagnosed the problem and told me it was the sealed system. I doubted them and sent them home. Replaced the correct freezer temperature sensor that connects to the motherboard. FIXED.
Removed a panel, cut two wires, soldered and insulated two wries, reinstalled panel.

Dis-assembly only consisted of three screws, but for the not-so mechanically inclined, I would suggest taking a picture of the ice crusher blades before removing them from the auger shaft.

first replace the solenoid behind the front display. than replace the mother board on the back side of the fridge due to a relay being burned out on it.

GE Wanted $300 + to come out and do the repair.

With partsselect and a little time I cut that cost in half.

Thank you,

Mike

First turned off power and removed top shelf.
Then I used a flathead to slowly pry the switch out by the two sides. You just anlge ita bit and it slideds out easily. Then I disconnected the wires from the old switch, connected the new one and installed the new switch by snapping it back into the cutout.

Pulled out the control sensor on the ceiling of the fridge. (2 screws) Took a picture with phone on how everything was installed. Unplugged all wires and pulled out Control Temp sensor. Installed new one and attached all wires. Installed back in fridge and plugged it back in. Everything works like new.

unscrewed old filter by hand, installed new filter.