Dwm30-999Pg(영_Sm).Indd - Daewoo DWM30-999PG Service Manual

3) Inspection and Repairs of Water Inlet Valve
Defects Descriptions
Water supply Water is not
unavailable supplied despite
the "drone"
Water supply Water supply
unavailable continues with
the power "ON"
Constant Power is "OFF"
water supply Constant leaks
(into tub) on sides
Others
4) Defects and Relevant Parts
Unavailable PCB
water
supply
Incessant PCB
water
supply
Inlet Valve 1. Examine whether the water
Synchronous
Drain Motor
(Valve
Housing)
DWM30-999PG(영_SM).indd 36
Causes
Faucet is turned off. Check whether the faucet is turned on
Short coil Check whether the inter-terminal
resistance of inlet valve is 4.3kΩ
Excessive impurities Unplug the inlet hose and then check
on SUS filter the impurities
Impurities in valve Check the malfunctions in valve
Disconnected Check the connection of connector
connector with naked eyes
Coil wire Check whether the inter-terminal
resistance of inlet valve is 4.3kΩ
Disconnection in Check any disconnections in wiring
wiring -> Inspect circuit
Defective water See the inspection of "Water Level"
level sensor defects
Inspect any openings and Inspect any openings and blockages
blockages in pressure hoses in pressure hoses
Defective valve Check the malfunctions in valve
Check any leaks Check any leaks from the sides of
from the sides of inlet valve
inlet valve
1. Inspect the insertion of Easily detachable if the
PCB pin wire is pulled
2. Unavailable power or Open or destroyed PCB
water supply to inlet valve inlet circuit (Water relay
terminal unavailable)
1. Water supply starts Short circuit in PCB
promptly when the power inlet circuit or water
is turned "ON". relay (Incessant electric
transmission to valve)
Deformed water inlet
supply continues even when valve bellows
the power supply is cut off
1. Examine the operation/ • Unclosed due to
water supply of inlet valve impurities in
2. Examine the drainage drainage housing
through the drainage hose
3. Check any impurities in
valve housing
Inpsection Method
and "cleanse" the filter
Housing on pin
connection not
properly inserted
Defective inlet
circuit
Short circuit in
water relay
Defective inlet
valve
• Impurities in
valve housing
• Impurities
• Error in returns
of synchronous
motor
36
PCB Error
Repair Method
Mode
Turn on the faucet "IE"
Exchange the part if "IE"
it is open
Remove impurities "IE"
Exchange the inlet valve "IE"
Reconnect the "IE"
connector
Exchange the inlet "IE"
valve
Exchange the "IE"
harness
Exchange the water "E2"
level sensor
Exchange the "E2"
defective part
Exchange the inlet valve -
Exchange the inlet -
valve
Insert the housing
on pin connection
completely
Exchange the PCB
Exchange the PCB
Exchange the inlet
valve
• Remove impurities
• Remove impurities
• Exchange the
synchronous motor
16. 8. 23. 오전 10:10