Daewoo DWC-ED1213, Service Manual

Page: 39 / 65

35
4) HEATER
Failure
Cause Diagnosis of Failure Solution
PCB
Status
Error Mode
Can not
heat
water
Overheat
water
Can not
dry
Wiring Disconnection
Heater Wash
Disconnection
Connector/Terminal
Seclusion
Heater Wash/Thermistor
Wash Poor
Heater Wash/Thermistor
Wash Poor
Wiring Disconnection
Heater Dry Disconnection
Fuse Temp.
Connector/Terminal
Slipped out
Operation Trouble of FAN
MOTOR
Heater Wash/Thermistor
Fault of Thermistor (Dry)
Connecting the
disconnecting point
Replacing Heater Wash
terminal/connector tightly
Connecting
Replacing temp. sensor
Replacing Heater Wash
Inserting terminal/connector
Replacing Fuse Temp.
tightly
Connecting
Re-connecting
Replacing Fan motor
Re-assemble after
disassembling
Replace Thermistor
Check whether disconnected or not : See Fig. A
Check whether disconnected or not : if normal, the
resistance between two ends is 23.3~25.7
Ω
.
Check whether disconnected or not : See Fig. A
Measure the resistance of two ends of the sensor : if
11.981K
Ω
at R25, it is mormal
Measure the resistance of two ends of the sensor : if
11.981K
Ω
at R25, it is mormal
Check whether disconnected or not : See Fig. B
Check whether disconnected or not : if normal, the
resistance between two ends is 22.3~24.7
Ω
.
Shipped out
Check whether disconnected or not : See Fig. B
Excessive Noise : Restraint/Failure of Fan Motor
Fan slipped out : MOTOR is operating, but there is
rotating sound.
Measure the resistance of two ends of the sensor : if
26.065K
Ω
, it is mormal
"H6"
"H6"
"H6"
"H2"
"H2" or "H4"
"H7"
"H7"
"H7"
"H7"
"H7" or "E3"
"H7"
"H1"
Checking Method of wiring/coil disconnection, connector slipping out on PCB board : Operate with the heater connected
* Inspect Wiring/Heater
Wash Disconnection :
Check the current and
resistance of two
terminals
3P Connector
orange wire
1P Connector
Blue Wire
* Inspect
Wiring/Heater Dry
Disconnection :
Check the current
and resistance of two
terminals
3P Connector
Red Wire
1P Connecor
Blue Wire
[Figure A] [Figure B]