LG refrigerator water intake valve leak

Sounds like you should buy a water filter to put in your house or wherever line to filter the water. it can be a cheap one with just a cheap paper filter to keep out any sand or settlement especially if you are on a well oh sounds like the valves are getting dirty inside and not closing completely because of debris in the valve.

Seals in water valve are likely leaking. Disassemble rebuild or replace water valve .
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1. Possible cause. Water leak. Check purge valve, water curtain, sump, sump hose.
2. Air filters clogged. Clean air filters.
3. Dirty condenser. Clean condenser.
4. Restricted location, intake air to hot. Have machine moved.
5. Ice thickness sensor dirty or disconnected. Check ice thickness sensor probe.
6. Water distributor dirty. Remove and clean water distributor.
7. Inlet water valve leaks through during freeze cycle. Check water inlet valve.
8. Connected to hot water. Check for bleed through from missing check valve in building water supply.
9. Incomplete harvest. Check harvest system.
10.High pressure cut out opened. Check fan motor pressure control, check fan motor, check controller using test mode.
11. Fan motor pressure control open. Check fan pressure control.
12. Fan motor not turning. Check fan motor, check fan blade,check controller using test mode.
13.Water pump not pumping. Check pump motor,check controller using test mode.
14. Pump hose disconnected. Check hose.
15. Compressor not operating. check compressor contactor, check controller using test mode.
Check compressor start components, check PTCR resistance and temperature, check compressor voltage, check compressor windings.
16. Low refrigerant charge. Add some refrigerant and restart unit. If cycle time imporves, look for a leak.
17. Hot gas valve leaks through during freeze. Check hot gas valve for hot outlet during freeze.
18. Thermostatic expansion valve bulb loose. Check bulb.
19. Thermostatic expansion valve producing very low or high superheat. Check evaporator superheat, Change TXV if incorrect.
20. Compressor inefficent. Check compressor amp draw, if low and all else is correcy, change compressor.

I am wondering about the hose you shoved in and the leak stopped. Is the hose you pushed in buckled where it hooks on or is there a buckled spot where the water comes out of the fridge. Just a guess.

Why don't you simply find out what the FE code is alluding to? Go to web site or do a google search and then you can check for the issue further.

yes you can get backflow....

purchase a 1/4 in line longe enough to do the job . insert in into the water valve and run it to the ice connection . this should correct problem . make sure the connectoins are tight and ck for leaks ..mm

If the leak is on the refrig water valve where the wall water line connects to , then use a 1/2" wrench and tighten the fitting on the water valve itself . If the leak is on the plastic tubing at the bottom of the refrig water valve , pull up on the small white ring while pushing down on the plastic tube to remove it from the valve . Cut off about 1 " of the tubing and reinsert it into the valve with pretty good pressure to be sure it is inserted completely .

A crack in that area of the block, while possible, is highly unlikely. A crack in the block usually happens in between the cylinder walls on the side of the block. It is most likely leaking from the intake manifold gasket that connects the intake manifold to the heads, or if the upper radiator hose connects to the intake manifold, it could be leaking from the thermostat housing or hose. There are also coolant temperature sensors that are mounted in that area. Or last but not least, it could be leaking from one of the freeze plugs in the end of the head. Coolant runs through the block, heads and intake manifold.

Leaky dispenser ???
Your water inlet valve on the back where the water supply comes in is probably leaking. disconnect the water line coming out of it and see if you have a slow drip. If so you need to replace the valves.