Samsung RT38 Service Manual page 61

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TROUBLESHOOTING
4-3. What to Check for No Ice / No Water (Only for models with the Ice Maker or Water Dispenser)
4-3-1. What to Check for No Ice
1. Check if the Ice OFF is lit on the Display Panel.
2. Press the Test Switch on the Ice Maker, and check if the Ice Maker Motor operates, there are ice cubes on the
Tray Ice and water is supplied after the rotation of the Tray Ice. (When the Ice Maker does not operate properly,
replace it.)
3. When there are ice cubes on the Tray Ice, measure temperatures at the Ice Maker Sensor or in the Freezer
Compartment. (Lower the temperature of the Freezer Temperature and see if it goes down.)
4. When water is not supplied to the Tray Ice, check if there is water in the Water Tank.
5. Check if the sieve on the tip of the Water Hose is blocked by any foreign substances. (If so, clean it up with a
fine brush.)
6. Take apart the Water Pump and check it. (When taking components apart, check if there is any kink on the
Water Hose first. And, measure the components' resistances and check if power is supplied at the Wire
Harness.)
☞ How to lower the temperature of
Freezer
[Caution] When the temperature
of Freezer is Max Cold, that of
Fridge may increase relatively.
4-3-2. What to Check for No Water
1. When pressing the Dispenser Lever, see if the Micro Switch at the back of the Lever works properly (by its
operating sounds "Tik-Tok".) At this time, the operation of the Water Pump can be judged by its working sounds.
2. Check if there is water leak at the Door Hinge and on the floor under the Refrigerator. (When there is water
leaking out of the Fitting or the Fitting Tube, take it apart and reassemble it. And, see if there is still water leak.)
3. Check if there is water inside the Water Tank.
4. Refer to "4-3-1" #5 and #6.
5. Take apart the Water valve and check it. (Check the connection of wire and hose and measure the resistances
of Water valve.)
[Note]
1. It supplies water when the Dispenser Lever is turned on.
2. It stops the water supply when the Dispenser Lever is turned off.
3. When it passes 60 seconds after turning on the Dispenser Lever, the water supply will be stopped regardless of
the state of the Dispenser Lever.
☞ How to measure resistances and their specifications (the values are
based on when the parts are at 25℃.)
Water Pump resistance check
- 9.54 ~ 11.66Ω
66
Water valve resistance check
- 36 ~ 44 Ω