Samsung WA48H7400AP - Page 27

Troubleshooting _ 25
Symptom Error Code Countermeasure Troubleshooting Procedure Measurement Picture
Door Error
►dC
This may occur when the door switch is defective. This may occur when the main PCB is defective.
• Check if a dE error occurs during the boiling
course.
• As this error occurs because the door is
opened,closethedoor.
• Since120Vpowerisconnected,checkif
the power cord is disconnected or check the insulation status and repair it if necessary.
• If the main PBA door detection circuit is
defective,replaceit.
1. Check the resistance for Reed
SW (Checking Part :White- Green Wire)
- Resistance:Approx0.2Ω
between the terminals of Reed SW.
2. Check the resistance for Motor
(Checking Part : Black-Brown Wire)
- Resistance:33Ωto46Ω
between the terminals of Motor.
►dC1
The door lock switch unit is not inserted. The door lock switch unit is damaged. The wire is disconnected. The door lock switch unit is defective. This may occur due to a defect of the main PCB.
• Check whether the door lock switch unit is
inserted.
• Check whether the door lock switch unit is
damaged.
• Check the disconnection of the wire. • Ifthedoorlockswitchunitisdefective,
replace it.
• IfthemainPCBisdefective,replaceit.
3. Check the resistance for Lock/
Unlock Contact (Checking Part : Lock White- Red Wire Unlock White-Blue Wire)
- Resistance: Resistance:
Approx0.2Ωbetweenthe terminals of Contact.
Check the Door Lock/Unlock
state.
Switch Error (Main Relay Error)
►bC2
The Power button is continually pressed. A button other than the Power button is continually pressed.
• Check whether either the Power switch or a
tact switch is continually pressed.
• Check whether the service PBA holding
screws are fastened too tight. If they are fastenedtootight,loosenthemalittle.
• IfthemainPBAswitchingICon/o󰀨errorhas
occurred,replacethemainPBA.
• The “E2” error occurs if the main relay
connections are incorrect. Check theconnections. If there is no error in the connections,replacethemainPBA.
Check the contact between the control panel buttons and their corresponding tact switch. - There must be a gap between
a control panel button and itscorresponding micro switch.
Otherwise,anerroroccurs
afterapprox.30secondshas passed.