DTH18ZBSORWW General Electric Refrigerator - Instructions

I applied some tips learned by reading other reviews. So before I started I grabbed my trusty vise grip pliers and a small screw driver. I locked onto the switch actuator, the part that the refrigerator door pushes in, with the vise grips and pulled on it just hard enough to get the screw driver inserted in the right side to push in the catch clip so the switch could be pulled out further each time the catch clip was depressed to the next detent. Then I used the screw driver on the left site to encourage the switch past the detents on the left and very quickly the switch was out of the mount. The wires from the refrigerator pulled out with the old switch. I unplugged the old switch from the wires and plugged in the new switch and shoved the new switch back into the mount, wiggled it a couple of times to make sure it was secure and the job was done. Once I applied the vise gripes at first, the whole job took less than a minute.

First I removed the rear cover, located at the bottom of the refrigerator. Then I cleaned out the dirt & dust on and around the compressor. The relay has a cover, that is secured with a spring loaded clip. To release the clip, push in with your fingers, while disengaging the end clip with a screwdriver. Once one side is off the other lifts off. Remove cove exposing the relay. There is one wire terminated, with a spade clip, remove it. With a strait blade screwdriver, pry the relay off the 2 post it slides on to. (Don't be surprised if it breaks into pieces, as they are sometimes brittle. ) Slide the new relay onto the 2 posts, replace the wire onto the right terminal, and replace the relay cover & clip. Replace the rear cover. Plug in and test.

Had to remove inside panels to expose coils in freezer. Used hair dryer and towels to de-ice. Reading online learned about defrost heater (long thin glass tube with wire coil in it I could not see b/c up under the inside of the coils). Who would have guessed freezers have heaters in them!! And learned the defrost timer (inside the fridge) is just a continuous clock turning on and off the defrost heater. Anyways I used a screwdriver to turn the timer to defrost mode and by disconnecting the wires from each end of the heater and measuring the voltage, I found 70 volts there. Hmmm. I didn't know what was the right volt amount.
Reading online I also found out the defrost Thermostat is basically a temp actuated on/off switch for that heater, so that while the timer is sending *120* volts to the heater (which gets red hot by the way) the therm switches the heater off when the temp gets high in the freezer.
I eyeballed the therm ( it looks like a little can) and I saw that it was coming apart. The key at this moment is you can cut out and bypass the therm to see if the heater works. If it does you know the therm is the bad boy. But only do this as a momentary test or the heater will probably set your fridge on fire after a while!

Always remember to unplug the fridge when you are messing with the wires! And dry it up inside before putting your hands and tools in there!

So I ordered a therm using the model # of the fridge. Had to cut the old out and strip / wire nut the new one in.

Took too long b/c I was hung up on the heater being bad (after all it didn't heat up when I put the timer in defrost) and not knowing about the rights volts to the heater.

PartSelect helped out great! Thanks!

Poped out with screwdriver the old swithch and unplugged the two wires. Plugged in the wires to the new swithch and pushed it back in the hole where the old switch was before.

While the switch did last for 9 years, the design is poor due to the failure mode. The failure should be to fail off or not able to turn on the lights which would be inconvenient but would not warm the refrigerator contents. Arcing at the contacts eventually caused the switch to "weld" closed. It is not obvious that this is occurring so it took some time to recognize why the temp inside the ref was high while the freezer was OK. Replacing the switch was easy once it was recognized as the problem. All that was required to replace the switch was to remove the screws holding a fiber cover and then pulling off the aluminum cap which covered the switches. Unplug the switch an squeeze the keeper on the switch to release it and pull down. Pop the replacement switch in place and plug the wires harness back in. All in all it took much less time to replace than it has to write this up. T Pope

Just replaced it.

The existing light switch was very hard to remove. I ended up having to grab it with a pair of pliers and pull it out. Once it was out, it was very easy to put in the replacement and it seems to be working fine.

Based on the relatively young age of refrigerator, I suspected the defroster electrical circuit. The evaporator core in the freezer was frozen solid, which confirms that the defrost heater circuit is not working. Thawed out (with a hot air gun) and disassembled the freezer section to access the evaporator core and defrost heater. If you have an ice maker, you will have to remove it to disassemble the freezer section. Confirmed with a voltmeter and ammeter that the defrost heater was not getting voltage. When the defrost heater is working, it will glow with an orange color. Also confirmed with a voltmeter that the defrost timer, located in the refrigerator section was working correctly. You can use a common blade screwdriver to rotate the timer through the cold and defrost cycles. Finally, I determined with a voltmeter and ammeter that the defrost thermostat, located on the evaporator core was not switching the defrost heater voltage. Ordered a new thermostat ($12) from this website and installed it. Refrigerator is as good as new. Be careful, there are many electrical hazards during the troubleshooting phase. Safety first.

First, using a nut driver, I removed icemaker and back panel inside freezer. I unhooked the wire connectors at each end of the heater defrost element and replaced with new element. I reinstalled the back panel and the icemaker.
Second, using the same nut driver I removed the casing located inside fridge on the top. I pulled the casing down & unhooked the wiring harness. I removed the control temp switch which was held in by two clips. I replaced with new switch, plugged harness back in, reinstalled casing and BINGO....it is as good as new....beats buying a new refrigerator anyday!!!!
THANK YOU Bernard S.!!!!!!!!!!!!!!
Sincerely,
Mom of three boys

I had to call for a appointment for repair with GE Appliance because I thought then it . .was something electrical. The technician came out & checked everything out, turned out it was not electrical, The technician went out to his truck got a light bulb from his truck, put it in & it worked. It cost me $121.00 for trip charge from GE appliance for a light bulb that worked, your light bulbs were defective twice. Very disappointed with your products, cost me alot of money for a good light bulb thru GE appliance

as described, I used a thin screwdriver to wedge in and pull down existing, broken switch. I was able to pull it down about a 1/4 inch, but wasn't quit able to disegage it until I gripped it with pliers. I then pulled it out, unplugged the old switch, plugged in the new switch, and carefully tucked the wires back into the fridge and snapped the new switch into place.

10 minutes total.

Unplugged the appliance for safety. Removed two 1/4" screws that held the assembly in place. Carefully removed the wire guard that retains the glass shield. Unscrewed old light bulb and replaced with new part. Reversed the steps after cleaning glass cover.

I noticed that if I unplugged the refrigerator and plugged it back in a while later it would start working but eventually would stop. I deduced the problem was likely the defrost thermostat. I ordered the thermostat but it was in a difficult place behind the evaporator coil which I could not remove. While I was trying to work it into position my hand pressed against the defrost coil and shattered the glass sheath. I ordered the coil and finally managed to get it and the thermostat installed. The refrigerator seems to work fine now.

Removed two screws holding the cover. Unclipped and unplugged the defroster timer. Plugged in the new one . Replaced the cover. Finished.

Refrigerator is not cooling. Light and fan working. Changed the capacitor.. Still not cooling. Back to discovery mode.It may be the timer
Certainly not PartSelect's fault. They have great service.