[. . . ] Call customer service Call customer service Call customer service Call customer service tE tE3 The resistance of the thermistor for the vent blockage detection operation is very low or very high. DE Running the dryer with door open dF Invalid door state for more than 256 milliseconds. Invalid state of key circuit short for 30 secs bE2 FE Invalid power source Frequency 2E Electronic Control Problem (Over Voltage Error) AE Electronic Control Problem (Communication Error) Et AE4 AE3 AE5 HE Invalid state of Eeprom communication A Communication error between the WIFI PBA and the MAIN PBA A Communication error between the DR Modem and the MAIN PBA A Communication error between the LCD PBA and the MAIN PBA Invalid heating Temp in running the dryer 2 Technical_information-02835D-01_EN. [. . . ] Definition of Software Version Mode: Display Mode 0 : Temperature data Display Mode 1 : Average Touch Sensor data for 1 minute Display Mode 2 : Average Temperature data for 1 minute DV457* If you press the “5” button in service mode, the mode changes to data display mode. Definition of Software Version Mode: Display Mode 0 : Temperature data Display Mode 1 : Average Touch Sensor data for 1 minute Display Mode 2 : Average Temperature data for 1 minute 5 Technical_information-02835D-01_EN. Indd 5 2012-03-26 2:28:50 ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. DR modem connection test Check if the parts from the Main PBA to the DR modem are properly connected electronically. DV457* Model Only - If you press the “3” button in service mode, the DR wire test is performed. Service Mode * If "AE3" or "AE4" error occured, press the Start button then error will be cleared. If no key is operated during Service Mode for 5 minutes, the machine will return to normal user mode. DV457* Tap Segment “4“ three times Tap Segment “1” two times Tap Segment “4” once On the Service Mode. If no key is operated during Service Mode for 5 minutes, the machine will return to normal user mode.      Segment 1  Segment 2  Segment 3  Segment 4 6 Technical_information-02835D-01_EN. Indd 6 2012-03-26 2:28:50 ALIGNMENT AND ADJUSTMENTS WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. TROUBLE DIAGNOSIS As the micom dry machine is configured of the complicate structure, there might be the service call. Below information is prepared for exact trouble diagnosis and suitable repair guide. Caution for the Repair and Replacement Please follow below instruction for the trouble diagnosis and parts replacement. [. . . ] Indd 9 2012-03-26 2:28:50 TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. ς Lamp resistance 80~100 Ω (Violet & gray)  Motor (Electronic & GAS) Contacts Function 1M 2M 3M 5M 6M Start Run  1) 2) Measure resistance of the following terminal Door switch : off Terminal : “COM” - “NC” (1-3) < 1Ω Terminal : “COM” - “NO” (1-2) : ∞ Ω Door switch : On Terminal : “COM” - “NC” (1-3) : ∞ Ω Terminal : “COM” - “NO” (1-2) < 1Ω  = Contact closed Centrifugal Switch (Motor) 2. Indd 10 2012-03-26 2:28:51 TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. [. . . ]