Mitsubishi Electric JT-MC106G-W-NA Handbook page 13

Error Display
Sensor Check
(Motor error)
Sensor Check
(Motor brush error)
Sensor Check
(Temperature detection er-
ror (Power circuit board))
Sensor Check
(Temperature detection er-
ror (Control circuit board))
Sensor Check
(Microcomputer error)
Cause
Connector dis- Check if the lead wire connectors between the motor and the
connection for the power circuit board are disconnected.
motor
Motor brush at the Replace the blower (assembly).
end of its life
Motor lock Check if the motor vanes are locked.
Blown current Measure the resistance between the both ends of the motor lead.
fuse (FUSE 3) If it is ∞ Ω, replace the blower (assembly).
or blown thermal
fuse of the motor
Malfunction of If no error is found after checking the above, replace the control
the control circuit circuit board.
board
Malfunction of If the error persists after replacing the control circuit board, re-
the power circuit place the power circuit board.
board
Unusually worn- Replace the blower (assembly).
out motor brush
Motor brush at the Replace the blower (assembly).
end of its life
Malfunction of If the error persists after performing the above, replace the control
the control circuit circuit board.
board
Malfunction of If the error persists after replacing the control circuit board, re-
the power circuit place the power circuit board.
board
An abnormal If the temperature on the power circuit board rises because of the
temperature has overuse, the hand dryer stops the operation.
been detected. Leave it until the temperature falls, and then check if the error oc-
curs again.
Malfunction of If the error persists after performing the above, replace the power
the power circuit circuit board.
board
An abnormal If the temperature on the control circuit board rises because of the
temperature has overuse, the hand dryer stops the operation.
been detected. Leave it until the temperature falls, and then check if the error oc-
curs again.
Malfunction of If the error persists after performing the above, replace the control
the control circuit circuit board.
board
Malfunction of Replace the control circuit board.
the control circuit
board
Check Method and Remedy
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