The water line inside of my ice maker has a leak. Not the line from the wall, but the plastic tubing that runs along the bottom, up the back, and into the insulation. I have found the part on line, but wanted to find out if it is difficult to replace and how I would do it. Thanks for the help.
Take off the back panel, the water line plugs in from the back. The icemaker has mounting screws, but there's a thermal mastic that kind of glues it to the evaporator. You don;t need to remove the icemaker to change the water line, I would put the screws back in and leave it. Don't force the icemaker from the evaporator, it might damage the evaporator.
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The plastic line that connects to the ice maker rubber FILL tube is what came off. Check inside the freezer and squeeze the end of the rubber tube at the back of the ice maker. I would bet it is frozen with ice. (Hand held hiar dryer for quite a while to defrost the tube FYI and do NOT melt the plactic of the ice maker water funnel.) What causes the tube to freeze is the inlet water valve starts bypassing water when it is supposed to shut off. The result of this bypassed water is a frozen rubber tube and the plactic tube on the back of the refirgerator blows off or leaks. This inlet water valve is NOT repairable.
The Fix... Replace the inlet water valve and make sure the rubber ice maker fill tube is defrosted BEFORE re-inserting the plastic tube back into the rubber fill tube. It just pushes in and the adhesive pads for holding the plastic line in place are not critical even if they are lost. The rubber fill tube fitting will retain the plastic hose just fine as long as the ice maker end of the tube is not frozen from a leaking inlet water valve.
I have to manually make the ice dump. 2) I now have a slight build up of ice under the ice maker where it appears the water from the ice tray is leaking and the inside of the freezer also has a slight build up of frost on the walls.
From my 40 years of experience that statement is telling me that the freezers' evaporator coils are blocked with ice. (i.e frost on the walls) When the coils become blocked or built up with ice everything APPEARS to be working fine but the actual freezer temp is above 17 deg F. An ice maker will not initiate an ice-harvest cycle until the temps are between 14 - 16 Deg F. I.e it is not cold enough to automatically make ice because the ice maker thermostat is not closing at 14 - 16 deg F to start the ice harvest.
So I will pose these questions for you and answer them:
Q? What causes the ice on the walls
A: The unit is not defrosting properly.
Q? What causes a refrigerator to not defrost properly?
A: There are several; reasons that a refrigerator will not automatically defrost
1. The defrost control has failed (Most common failure)
2. The defrost heating element has failed
3. The defrost thermostat has failed
4. A wiring problem in the defrost circuit
Now.... you also made this statement: I now have a slight build up of ice under the ice maker where it appears the water from the ice tray is leaking
You may have a leaking ice tray but it is quite rare. What usually causes an ice build up directly under and ice maker is the inlet water valve leaking / bypassing water when it is supposed to be shut off. An inlet water valve will bypass water when the internal diaphragm fails or debris is blocking the needle seat of the diaphragm. Either way the only remedy is to replace the inlet water valve because the valves are NOT repairable.
Reach inside your freezer and squeeze the rubber tube that fills the ice maker with water. If there is a problem with the inlet water valve the rubber tube starts freezing up with ice. Eventually when the rubber tube is totally frozen the plastic tube on the back of the refrigerator that connects to the rubber tube either leaks or separates from the rubber tube and ports water onto the floor. If you really want to prove that there is a problem with the inlet water valve turn the ice maker OFF. Remove the plastic tube from the rubber ice maker fill tube (Just pulls out) and place it in a bucket overnight. IF you note water in the bucket the next day then the inlet water valve has for sure failed. Sometimes they LEAK intermittently when the failure first begins so the bucket test may not reveal a leaking inlet water valve. The key here is you said you have water UNDER the ice maker and you suspect a tray leak.
Here is what I recommend you do after the overnight plastic tube in a bucket leakage / bypassing test: 1. Reinstall the plastic tube on to the rubber fill tube. 2. Turn the ice maker ON 3. UNPLUG the refrigerator and so a manual defrost by removing the freezer contents then directing a fan into the freezer compartment for just over 2 hours. (Makes a water mess) 4. Return the unit to normal service 5. Check for ice production 6 - 8 hours after you performed the manual defrost. If you have automatic ice production you most likely have and automatic defrosting problem... BUT.... there can be a problem with the freezer door / light switch. The door light switch is a 3 contact switch. One contact is a common power wire and the other 2 contacts turn on the light and provide power to the ice maker (and some times the evaporator fan also depending on unit design)
Test the door light switch amd make sure the light will go off when the door is closed. (depress the plunger) If the light stays on the door switch is bad.
Hopefully you have enough information to understand what is happening with your refrigerator and what the causes of the symptoms you have are.
I think in the end you will have to repair the automatic defrost problem and replace the inlet water valve. Do not forget about testing the door light switch.
I would replace the plastic tubing ASAP. After 8 years using the plastic tubing we found our finished basement ceiling leaking water. When we looked into the source we found a hairline crack spiraling along the plastic tube. This must have leaked for several months. The very fine water spray ran down the wall and through the supply line hole in the floor and onto the ceiling. Replace the plastic line with a steel braided one. You wont have any issues with taste or breaking.
Make sure your ic maker is empty. On the bottom of the ice maker is a small button. Watch the plastic fill tube and hold the botton in. Let the ice maker cycle anmd see if the water over shhoots rne ice maker. If it does, trim 1/8 of an inch off of the tube with a raxor knife on an angle = / this should take care of your problem.
You will have to remove the ice maker , to have access to the fill tube . Only 3 screws , hold the ice maker on . After removing , make sure the tube is not frozen inside , and that it is securely , pushed inside the fill tube holder . If frozen inside , then the water valve behind the refrig , where the wall water line connects to , on the refrig , will need replaced also , due to " seeping " , not closing completely , after filling .
The fill line internal to the freezer is likely frozen up from the elbow inward.. When the icemaker calls for fill...pressure builds up on the plastic tubing causing it to pop out of the elbow. Check the tube inside the freezer by removing icemaker and running a long thin screwdriver or a rigid wire up into the tube until you feel ice or the plastic elbow outside.
Clear ice, if present, by squeezing hot water in from freezer side with turkey baster until cleared and water comes out back.
I wonder if you just notice the noise now because the leak has you more aware? First things first. Lift up the arm on the ice maker (a few hours prior to attempting service) to stop it's operation. You need to roll the unit forward to give you access to the back. You'll see a plastic tube that runs from the bottom compartment (water valve) to the ice maker fill tube. Lower the arm of the ice maker and observe the plastic tube for the location of the leak. The most likely spot would be at the top. A hose clamp can be put on the fill tube after making sure the plastic supply tube is completely inserted into the fill tube. The fill tube is the piece that goes through the rear bulkhead and delivers the water to the icemaker. It may be neccessary to remove the icemaker to thaw out the fill tube using a hair dryer.