Samsung DMR78 Series Service Manual page 6

1. Safety Instructions
Check if the power cable is damaged, flattened, cut or otherwise degraded.
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If faulty, replace it immediately.
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Failing to do so may result in electric shock or fire.
Completely remove any dust or foreign material from the housing, wiring and connection
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parts.
This will prevent a risk of fire due to tracking and shorts in advance.
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When connecting wires, make sure to connect them using the relevant connectors and
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check that they are completely connected.
If tape is used instead of the connectors, it may cause fire due to tracking.
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Make sure to discharge the PBA power terminals before starting the service.
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Failing to do so may result in a high voltage electric shock.
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When replacing the heater, make sure to fasten the holder heater after ensuring that it is
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inserted into the bracket-heater.
If not inserted into the bracket-heater, it touches the tub and causes noise and
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electric leakage.
Check for any water leakage.
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Perform a test run for the dishwasher using the standard(normal) cycle and check
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whether there is any water leakage through the floor section or the pipes.
Do not allow consumers to repair or service any part of the dishwasher themselves.
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This may result in personal injury and shorten the product lifetime.
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If it seems that grounding is needed due to water or moisture, make sure to run
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grounding wires.
(Check the grounding of the power outlet, and additionally ground it to a metallic water
pipe.)
Failing to do so may result in electric shock due to electric leakage.
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[Running a grounding wire]
- Twist a grounding wire (copper wire) two or three times around the tap.
- If you connect the grounding wire to a copperplate, bury it 75 cm under the earth in a
place with a lot of moisture.
 Do not connect the grounding wire to a gas pipe, plastic water pipe or telephone
wire. There is a risk of electric shock or explosion.
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While Servicing
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