ZISB420DRK General Electric Refrigerator - Instructions

removed freezer door / shelf /ice maker pulled back panel off and removed fan

-Pulled refrigerator out to access back.
-Removed compressed paperboard cover.
-Found compressor running by the feel.
-Removed metal cover to control board.
-Found ~5V coming from control board to inverter (variable frequency drive) board assembly attached to compressor.
-Found ~120 going to inverter board.
-Removed inverter board assembly from compressor.
-Found equal resistance (~7 ohms for mine) at all three contacts of inverter (DC) compressor.
-Ordered inverter assembly, plus one extra and control board for possible future use so not to loose all my food again; I might order a compressor so I have it before price goes up.
-Installed inverter when arrived.
-Used air compressor to blow out accumulated dust on condenser coil.
-Closed up and cleaned up (C^2).
-Fridge cooled and back to proper temperature the next day.

The old switch was hard to remove. Thinking that I may have to loosen the wires I used a socket wrench to remove a clamp. This was unnecessary. In the end the switch did come out using a large size screwdriver. The problem was that the expanding plastic tongue is not visible from the ouside so you have to try to feel your way around. If i had ordered the replacement before and not afterwards I would have seen this before hand.

After replacing the light bulb and still no light I manually pushed the light switch button. Intermittently the light would come on then go out. I removed the power plug from the power source then replaced the light switch. I plugged the refrigerator back in and now I open the door the light comes on and stays on until the door is closed.

Performed self test.turned off ice maker switch four 5 minutes.Then turn on switch,within 10 seconds,pushed ice paddle 3 times,with 1 second in between each push.Push all the way back and release. Ice maker should cycle and squirt water. My ice maker did neither.I unplugged cord from fridge.So i replaced the ice maker.After a couple of screws had ice again !

The problem was both the valve and a frozen slug of water in the supply line located inside the door. After replacing the valve, I turned the freezer to a setting of 1 and in about 30 hours, water flowed out the tap.

found the correct bulbs, the hardest part.
un screwed old bulb.
Screwed in new bulb.
Waa La,
There was light.

Unplugged ref.,turnned water off at wall and drained, removed back cover on lower part of ref. then removed screw holding water valve,unplugged both wires from unit,pulled the 3 water lines off,1 I had to cut, would not release,got new water valve,push 3 water lines in place,attached the 2 wires in place and screwed unit back on ref.and replaced back cover on ref. Then I got a hair dryer and thawed all ice that had built up behind and under ice maker in freezer,cleaned that mess up,turned water back on plugged in ref. All good ,repaired problem,old water valve was bad.

I ordered two switches, replaced both with a knife in 10 minutes. Interior light works, thanks.

just had to unscrew old one put the new one in

1 opened door 2. pryed cover off from cieling 3.cut and stripped wires on 4. sodered wires from old wires to new sensor. 5 insulated conection.6 put cover back on. This did not fix the problem it was the control moduel.

Nothing to tell it was just a replacement part that the old part was removed and the new one inserted. Works like a dream Thanks

Just fallow video shows that it 123 !

removed broken bin , slid new ice bin in closed door. I bought the complete part.

Unplug refridge then loosened two bolts holding old ice maker. Lower then unplug and removed. Plugged in new harness and tightened two bolts to secure new ice maker. Plug in frig and wait for ice.