Unit installation

AR-C330 SELF DIAG MESSAGE AND TROUBLESHOOTING 10 - 49
Main
code
Sub
code
Title
Fusing section high temperature
trouble (THS3)
H3 2 Phenomena Display Lamp
Message
Detail The fusing temperature
rises above 220°C. (The
temperature sensor
(Thermistor) voltage of
0.85V or less is detected.)
Section Fusing
Operation
mode
All modes
Note
Case 1 Trouble
position/
cause
Temperature sensor
(Thermistor) trouble
Remedy (Check) Check for dirt on
the temperature sensor
(Thermistor).
(Repair) Clean or replace
the temperature sensor
(Thermistor). / SIM 14
(After-work)
Case 2 Trouble
position/
cause
PCU SUB PWB trouble
Remedy (Check) Check the PCU
SUB PWB fusing
temperature sensor circuit.
(Repair) PCU SUB PWB
replacement / SIM 14
(After-work)
Case 3 Trouble
position/
cause
Heater lamp control PWB
(AC SUB PWB) trouble
Remedy (Check) Check the
operation of the heater
lamp. (SIM 5-2)
(Repair) Replace the heater
lamp control PWB (AC SUB
PWB). / SIM 14
(After-work)
Main
code
Sub
code
Title
Fusing section high temperature
trouble (THS4)
H3 3 Phenomena Display Lamp
Message
Detail The fusing temperature
rises above 220°C. (The
temperature sensor
(Thermistor) voltage of
0.85V or less is detected.)
Section Fusing
Operation
mode
All modes
Note
Case 1 Trouble
position/
cause
Temperature sensor
(Thermistor) trouble
Remedy (Check) Check for dirt on
the temperature sensor
(Thermistor).
(Repair) Clean or replace
the temperature sensor
(Thermistor). / SIM 14
(After-work)
H3 3 Case 2 Trouble
position/
cause
PCU SUB PWB trouble
Remedy (Check) Check the PCU
SUB PWB fusing
temperature sensor circuit.
(Repair) PCU SUB PWB
replacement / SIM 14
(After-work)
Case 3 Trouble
position/
cause
Heater lamp control PWB
(AC SUB PWB) trouble
Remedy (Check) Check the
operation of the heater
lamp. (SIM 5-2)
(Repair) Replace the heater
lamp control PWB (AC SUB
PWB). / SIM 14
(After-work)
Main
code
Sub
code
Title
Fusing section (upper) low
temperature trouble (HL1)
H4 0 Phenomena Display Lamp
Message
Detail The specified temperature
is not reached within the
specified time (5 min) after
starting warm-up.
Section Fusing
Operation
mode
All modes
Note
Case 1 Trouble
position/
cause
Temperature sensor
(Thermistor) trouble
Remedy (Check) Check for dirt on
the temperature sensor
(Thermistor).
(Repair) Clean or replace
the temperature sensor
(Thermistor). / SIM 14
(After-work)
Case 2 Trouble
position/
cause
PCU SUB PWB trouble
Remedy (Check) Check the PCU
SUB PWB fusing
temperature sensor circuit.
(Repair) PCU SUB PWB
replacement / SIM 14
(After-work)
Case 3 Trouble
position/
cause
Heater lamp control PWB
(AC SUB PWB) trouble
Remedy (Check) Check the
operation of the heater
lamp. (SIM 5-2)
(Repair) Replace the heater
lamp control PWB (AC SUB
PWB). / SIM 14
(After-work)
Main
code
Sub
code
Title
Fusing section high temperature
trouble (THS4)