I've got a slow leak from the cold water dispenser on a GE refrigerator. My impression is that the when one calls for cold water, a solenoid opens an inlet valve. So, any leaks are caused by a faulty valve - i.e., it is not completely closing - and I need to replace the valve. Is this correct?
If the valve on the fridge is *not* getting insufficient water pressure, it may not close tightly and continue to allow small amounts of water through.
For this check any in-line water filters for being plugged, kinks in the line or the valve on the house water pipe. In the later case if a 'self piercing' type of saddle valve was installed, it could be partially plugged with lime and scale. That can also happen with drill type saddle valves is mounted on the underside of a water pipe.
Only a drill type saddle valve should be used (if not a real plumbing valve) and only mounted on the top side of a horizontal water pipe or the side of a vertical pipe. If fixing that does not correct the problem, the water valve on the fridge likely needs to be replaced.
If you're just getting a little bit of 'run on' after the dispenser is used and not a consistent dripping, it could be the fridge's internal water reservoir 'flexing' during use in which case the reservoir probably needs to be replaced.
Fill valve(s) solenoids open when power is applied to them and allow the house pressure to push the water through.
If dribbling at the dispensor the fill valve *may* yes not be 100% closing, poor water pressure can also cause the fill valve to stick/stay open....flexing water reservoir can also "push" out the water and dribble at the dispensor.
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