Mitsubishi MJ-EZ6CX-S1-IT, Руководство по обслуживанию, Страница: 24 / 50

A1 A2
Error code
Content
Cause
/
Remedy
Part name
Conditions
Connector
Check
terminals
Normal
value
A3 A6 A9 E2 E3 E4 E5 E6
RAM error
Frequency
determination error
(When it is reset.)
Frequency
determination error
(During operation)
Watch dog
error
Failure of photo
interrupter
for dryer fan
(open)
Disconnection
of room temp.
thermistor
Short circuit
of room temp.
thermistor
Disconnection
of heater
thermistor
Short circuit
of heater
thermistor
Disconnection
of frame
thermistor
Microcomputer
(IC1) failure
→ Replace power
control board
Microcomputer
(IC1) failure
→ Replace power
control board
Microcomputer
(IC1) failure
→ Replace power
control board
Microcomputer
(IC1) failure
→ Replace power
control board
Damage to
photo interrupter
Room temp. / humidity sensor
(1)Disconnection of
temp./humidity
sensor lead wire
(2)Failure in soldering
of sensor board
(3)Connector contact
failure
Remove P9
P10
Between pin3 and pin4
47k- 51k Ω
Frame ･ heater thermistor
(1)Contact failure
of operation control
board
(2)Short circuit of
lead wire
(3)Part failure
Remove P11 and P13
Between terminals
180 k - 500k Ω
(1)Contact failure of
operation control
board connector
(2)Part failure
(1)Contact failure
of operation control
board
(2)Disconnection
of lead wire
(3)Part failure
(1)Failure in soldering
of sensor board
(2)Short circuit of
connector pins (P9)
3
)
Err
or Indications and Corrective Actions
Display
24