John is correct, the unit will have to be pulled to repair. Now, this line is never under pressure unless the nozzle through the wall freezes up. This is caused by a weeping water valve. If you find that the nozzle is frozen, replace the valve and thaw out the nozzle. When this happens most if not all the time the tubing is just pushed out of the fitting of the nozzle and when the ice maker calls for water, it all runs down the backside of the refrigerator.
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Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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