Mitsubishi Electric JT-SB116EH-W-CA, Руководство пользователя

Страница: 20 / 46

—21—
Power
If the power switch is turned ON while the sensor is shielded,
an error occurs.
Turn OFF the power switch and, in the state that the sensor is
not shielded, turn ON again the power switch.
Check if TAB7, 8 or 9 is disconnected.
Visually check for cracks on the circuit board, corroded
electronic parts, defective soldering, etc. Defective sensor
circuit board
(Side F of blow panel)
Disconnected lower
sensor circuit board
Dirty sensor
window
Leftover object
Disconnected lower light
emitting/illumination
lead wires
Sensor is
shielded at the
power ON.
Leftover object
Disconnect lead wires
of upper/lower light
receiving sensors
Disconnected upper
sensor circuit board
Defective upper
sensor circuit board
(Side B of blow panel)
Defective control
circuit
Error Mode Display Cause Check Method and Remedy
Check screws clamping the heat sink for missing or
looseness. Missing or loose
heat sink screws
If no error is found after checking the above, replace the
control circuit. Defective control
circuit
(Heat sink overheat error)
Heater
O
Check Blue LED
O
Disconnected
motor lead wire
Power
O
Power
Power
Check if CN7 or CN14 is disconnected.
(CN14 is on the sensor circuit board.)
Check the sensor circuit board for disconnection or displaced
fixing position.
Visually check for cracks on the circuit board, corroded
electronic parts, defective soldering, etc.
Dirty window may shield incoming light. Make clean the
sensor window.
Check if CN5 or CN15 is disconnected.
(CN15 is on the sensor circuit board.)
Check the sensor circuit board for disconnection or displaced
fixing position.
If no error is found after checking the above, replace the
control circuit. Defective control
circuit
(Current detection circuit error)
Heater
O
Check Blue LED
O
If no error is found after checking the above, replace the
control circuit.
Check the inside of drying area for any object left over and
shielding the sensor.
Sensor is
shielded when
turning the power
switch ON.
Dirty window may shield incoming light. Make clean the
sensor window. Dirty sensor
window
(Upper sensor error)
Occurring at the power ON
Heater
O
Check Blue LED
O
Check the inside of drying area for any object left over and
shielding the sensor.
(Lower sensor error)
Occurring at the power ON
Heater
O
Check Blue LED
O
If no error is found after checking the above, replace the
control circuit. Defective control
circuit
If the power switch is turned ON while the sensor is shielded,
an error occurs.
Turn OFF the power switch and, in the state that the sensor is
not shielded, turn ON again the power switch.