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Heating Without Water - LG F1***ND1 Service Manual

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PWB ASSEMBLY (MAIN)
AC 220~240V
PWB ASSEMBLY (MAIN)

HEATING WITHOUT WATER

Water level frequency 252 or more?
Water level frequency between
230~245~?
YES
Checking voltage between two
[Yellow(RD), Black(YL)]pins as press
the power button is the voltage
220 - 240V~ in without water condition
DRAIN MALFUNCTIONING
Is the drain hose twisted or frozen?
NO
Is the impeller of the drain pump clogged?
NO
Is the connector disconnected,
disassembled?
NO
Is the coil of drain pump cut-off?
(resistance of coil is 90~160Ω )
NO
When checking voltage between
connectors (
,
) on spinning, is the
1
2
voltage 220 - 240V~ as the figure?
NO
YES
YES
YES
YES
YES
NO
23
Replace the sensor
(pressure)
Replace the PWB
assembly
Repair drain hose
Remove foreign
material.
Reconnect or repair the
connector
Replace the pump
assembly
Replace the PWB
assembly (Main)

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