Code :

Code: C473
Description: Surge pressure detection / power and voltage upper limit abnormality
Remedy: 1. Check the power voltage (1) Check if the power voltage is normal.(Is the voltage during the operation ?10% of the rated voltage?) 2. Check the thermostat (1) Check if the thermostat is blown. 3. Check the IH board (1) Check if the connectors of the power supply unit are disconnected (power supply unit AC output connector and LGC I/F connector CN404). (2) Check if the fuse on the IH board has blown. (3) Replace the IH board. 4. Check the LGC board (1) Check if the connectors CN305/CN306 are disconnected. (2) Check if the conductor pattern on the board is short circuited or open circuited. (3) Replace the LGC board. 5. Clear the status counter Change the current status counter value "1" or "2" to "0", then press [ENTER] or [INTERRUPT].

Code: C474
Description: Power and voltage lower limit abnormality
Remedy: 1. Check the power voltage (1) Check if the power voltage is normal.(Is the voltage during the operation ?10% of the rated voltage?) 2. Check the thermostat (1) Check if the thermostat is blown. 3. Check the IH board (1) Check if the connectors of the power supply unit are disconnected (power supply unit AC output connector and LGC I/F connector CN404). (2) Check if the fuse on the IH board has blown. (3) Replace the IH board. 4. Check the LGC board (1) Check if the connectors CN305/CN306 are disconnected. (2) Check if the conductor pattern on the board is short circuited or open circuited. (3) Replace the LGC board. 5. Clear the status counter Change the current status counter value "1" or "2" to "0", then press [ENTER] or [INTERRUPT].

Code: C480
Description: IGBT high temperature abnormality
Remedy: [C480] IGBT high temperature abnormality 1. Check the IH cooling fan (1) Is the IH cooling fan rotating normally? (Check if the connector is disconnected.) 2. Check the IH board (1) Replace the IH board. 3. Check the LGC board (1) Check if the connectors CN305/CN306 are disconnected. (2) Check if the conductor pattern on the board is short circuited or open circuited. (3) Replace the LGC board. 4. Clear the status counter Change the current status counter value (08-400) "14" to "0".

Code: C481
Description: IH drive circuit abnormality
Remedy: 1. Check the IH board (1) Replace the IH board. 2. Check the LGC board (1) Check if the connectors CN305/CN306 are disconnected. (2) Check if the conductor pattern on the board is short circuited or open circuited. (3) Replace the LGC board. 3. Clear the status counter Change the current status counter value (08-400) "15" to "0".

Code: C490
Description: IH circuit abnormality / IH coil abnormality
Remedy: 1. Check the power voltage (1) Check if the power voltage is normal.(Is the voltage during the operation ?10% of the rated voltage?) 2. Check the IH board (1) Check if the heaness of IH coil. (2) Check if the conductor pattern on the board is short circuited or open circuited. (3) Replace the IH board. 3. Check the IH coil (1) Check if the IH coil is open circuited or short circuited. (2) Replace the IH coil.

Code: C4B0
Description: Fuser unit counter abnormality
Remedy: 1. Check the LGC board (1) Check if the conductor pattern on the board is short circuited or open circuited. (2) Check if SRAM is mounted. (3) Replace the LGC board. 2. Clear the status counter Change the values “30” or above, or “4” of the status counter (08-400) to “0”.

Code: C4B1
Description: Fuser unit voltage judgment abnormality
Remedy: (1) Check if any of the harnesses in the fuser unit is open circuited. (2) Check if any of the connectors CN305, CN306 and CN330 on the LGC board is open circuited. (3) Check if there is any abnormality on the harnesses between the connectors CN305, CN306 and CN330 on the LGC board and the fuser unit. (4) Replace the LGC board. (5) Replace the fuser unit. (6) Check if the AC input connector on the IH board is disconnected. (7) Check if the connector CN404 of the switching regulator is disconnected. (8) Check if the fuse of the IH board has blown. (9) Replace the IH board. (10) Replace the FIL board.