Samsung WA45M3100A Series - Page 27

Troubleshooting _ 25
Symptom Check Code Countermeasure Troubleshooting Procedure Measurement Picture
Switch Code (Panel-Sub PBA)
►
Eco Warm LED Flash
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/off Code has
occurred, replace the main PBA.
• The“EcoWarmLED”f ashesifthemain
relay connections are incorrect. Check the connections.Ifthereisnof ashinginthe connections, replace the main PBA.
• Check beep sound, when pressing button
- sound on : Panel fault -> Check connections, still same, change a panel - no sound : Main PBA fault -> Check connections, still same, change a 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 its corresponding micro switch.
Otherwise, an Code occurs afterapprox.30secondshas passed.