RT18BMXDN00 Roper Refrigerator - Instructions

removed flap door in front of icemaker...removed 3 screws with bolt heads...removed one additional screw with bolt head and ice unit slid out. I removed motor unit (pops out no screws). Replaced and had ice within 3 hours.

I troubleshot the problem by reading the electrical schematic and concluding the heating elements (defrost cables) were either defective or the bi-metal temp sensor was open. When closed the temp sensor completes the circuit for the current to flow through the heaters to defrost the cooling coils every 8 hours and then when the bimetal opens at 55 degrees the circuit is open and the coils are cooled because the refridgeration motor is in run mode. A timer between the motor and heater elements also was defective. The timer controls the cooling period and the defrost period. I ohmed out each part according to the spec sheet of normal resistance of parts and thus the bimetal and timer were defective. I gather a surge of some duration and amplitude affected these parts because a storm 24 hours prior to refridgerator problem had passsed through the area and the AC electrical power had oscillated several times during that event. I used hand tools to do the repair. If you are not mechanically inclined a step by step proceedure would be moot. It is a matter of disassembly and assembly paying close attention to fragile parts.

With socket wrench un-screwed the 3 screws and pulled out the ice maker assembly.

Pulled off white plastic end-cap and noticed the plastic gear disk had snapped off (sub part # R0167202)

However, it is all-one-part of the motor assembly unit # w10190935 (part # PS2341896) which must be ordered as a complete part.

Unscrewed the motor assembly (3 screws) with phillips head screw driver.

Screwed in the new unit.

Placed ice maker back into location and tightend the bacing srews.

1 hour later ice was falling!

I removed the ice maker from the refrigerator, by removing one screw on the underside bracket and loosening the two screws at the top side, then lifting the ice maker off the loosened screws. I then unplugged the electrical harness that supplies power from the refrigerator to the ice maker. I then disassembled the ice maker by removing the front cover which is snapped in place, then removing two recessed screws at the front. I removed the broken part, I then reassembled the ice maker with the new part. I replaced the two recessed screws at the front and snapped on the cover. Then I reinstalled the ice maker in the refrigator by plugging in the harness, slipping the ice maker over the loosened screws in the refrigerator and replacing the screw that was removed from the underside bracket. Tightening all the screws completed the project.

I used a flat-head screwdriver to pop out the old light rocker switch. Then, I unplugged the wires, plugged them into the new light rocker switch, and then popped the new switch into the hole. That's it! Lights began working again.

To troubleshoot - Check water supply to valve. It f that's good - remove back plate, remove water valve reconnect inlet line, disconnect electrical connector, place valve over a pan with outlet fitting disconnected, temporarily connect 110 VAC with clipleads to water valve solenoid. No water flow means valve is not opening. To install new valve, connect outlet line, and wiring connector, then insert in cabinet and install 2 screws, reinstall back plate, connect water inlet line.

Motor from Part Select was 185W instead of 260W that came out of unit. After a bit of searching online, I found out the 260W had been obsoleted for lack of torque when harvesting ice.

Removal instructions: Unplugged fridge. Then I removed the screw on the bottom right rear of the unit. Then removed the plastic cover that covered the power connector. Pulled out the icemaker by pushing in the tab on the bottom left middle of the icemaker unit and pulling unit toward me. Unplugged the connector on the back right hand side. Removed the cover on the left side covering motor. Took out 3 philips screws and removed old motor with broken axle that spun freely (the source of the clicking noise). Put new motor in aligning harvest arm (the thing with the fingers) and did reverse of removal. Then plugged fridge back in and it started a harvest and the next morning I had a half tub of ice.

The easiest thing to do was pull the ice make off. After taking the 3 screws out of the wall of the freezer, take a screwdriver (flathead) and push on the tab for the electrical plug and wiggle the cord out. Then you can take 3 screws out for the main cover and another 2 screws on the next cover. There's the part, pop it out and replace holding pins and start the process of putting back together the opposite way you took it apart.

Trouble shot the electrical circuit per the electrical schematic and zeroed in when I noted the Defrost Timer circuit was open. When I tapped on the bottom of the timer it began functioning normally (for a few days). Ordered a new Defrost Timer Kit and along with the installation instruction, I watched the on-line video. It was very helpful!!
After installation was complete, I plugged the Refrigerator into the electrical outlet and.......nothing happened! Hmmm!

Removed the Defrost Time Kit and inspected it for any damage and found none. Then I placed a flathead screwdriver to the manual advance knob and slightly rotate the gear mechanism. I heard a distance "click”. I believe the Timer was in the ‘defrost’ mode when received.

I reinstalled the timer, verified the wiring connections and this time plugged the Refrigerator into the electrical outlet and ….. it worked!!!

I unplugged the refrigerator, finished the installation per the instructions, plugged the unit in and monitored it for a few hours (just in case). That was a week ago and the Refrigerator is working like new.

The instructions were written in a manner which required re-reading a few times as they could be a bit vague. The video was what really helped and I appreciate PartSelect adding it to the instructions.

My troubleshooting narrowed down the problem to either the control assembly or the thermostat, so I bought both just in case. The motor assembly fixed the problem and I didn't need to install the thermostat.

The main thing I want to tell others who are doing this repair, however, relates to the thermostat. If you do indeed need to replace the thermostat (#PS380941) there is something you will need that is not included with the part or mentioned anywhere on this site. The instructions with the thermostat indicate you need to apply something called "Aluminastic" to the thermostat when installing it. I don't know about you, but that isn't something I have around the house, so be sure to order a tube of it when you get the thermostat so you don't have to take a trip to the store to get it to finish the repair.

first I diagnosed the problem with the whirlpool do-it-yourself repair manual, which was very easy to understand. as per the repair manual, "this part located on the evaporator or the back of the liner is used during the defrost cycle. This bimetal senses the temperature from the evaporator. When the temperature reaches 50-70 degrees (F) the defrost bimetal turnd the defrost heater off. " then I emptied the freezer. removed the the back panel to expose the evaporator. I looked for the bimetal defrost thermostat clipped on the evaporator. tested the bi-metal defrost thermostat, as per the manual, " the ohmmeter should show ZERO resistance (continuity). if not, the bimetal is bad and needs replacing." NOTE: the bimetal must be cold. it is also tested with the bimetal warm/hot, by running it under hot water. i used a styrofoam cup with hot water & dipped the bimetal in. as per the manual, " the ohmmeter should show an open circuit. if not, the bimetal is bad and needs replacing. then got online found partselect.com. ordered the part, recieved it in less than 2 days. within minutes after recieving the part, I removed the bimetal defrost thermostat and spliced in the new one. thanks to partselect.com my fridge is back up and running properly again. prior to installing the new bimetal, i tested it, as descibed above, you can hear & feel the bimetal open/close when it gets hot/cold.

De-iced the refrigerator. Removed two screws from the thermostat panel on the upper refrigerator section. Tilted it down, removed two speed nuts holding the timer, unplugged the timer plug. Determined from the instruction sheet (easy to follow) what time delay function is used, based on wire colors, placed the jumper on the correct terminal on the new timer. Plugged it in, replaced the speed nuts and screws. The timer fit perfect, works just like it is supposed to, quick easy job.

First I removed the old lightbulb from the socket and replaced it with a new one to confirm that the bulb was not the problem. I then pryed the socket out with a flat-head screwdriver. I could tell that the socket was anchored in its hole with clips so it was relatively easy to pry it out. Once the socket was out, I disconnected the lead wires and ordered a replacement socket kit from Partselect. When the new one arrived, I reconnected the lead wires to it, snapped it back into its hole, screwed in a new lightbulb, and presto!! The light was back on with no further problem. Thank you, Partselect!! A $15.00 part saved me what probably would have been at least a $100. service call and heaven knows what the technician would have told me I needed!!!

I first poured water into the ice maker itself and it made ice, so knew the ice maker itself was working ok. Turned the water valve at the wall off, removed the inlet valve from the back of the fridge with a nut driver, disconnected the solenoid wires and disconnected the water supply line entering the inlet valve and turned the water supply back on and found that the water was flowing ok out of the supply line. Reconnected the water line to the inlet valve and disconnected the water line going from the inlet valve to the ice maker and reconnected the wires to the solenoid on the inlet valve and found no water going through and so determined that the inlet valve/solenoid was faulty and easily replaced it. Note that an ohmeter check said the solenoid was ok, so it could have been that the filter screen inside the inlet valve was blocked. It's a sealed unit, so there was no way to take the screen out to check.

Glass sheet came in perfect condition, just put back in refrigerator and has been fine ever since. Not the first time I had ever taken out to clean, but it will be the last. From now on, I clean it in the refrigerator.