MITSUBISHI ELECTRIC MSZ-FD25VAS - Manual (Page 32)

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Check of installation of the horizontal vane E
Replace the
indoor electronic
control P.C. board.
Replace the
interlock switch(Fan).
Is the stopper of the horizontal vane
locked to the indoor unit correctly?
Yes
No
Is there resistance 0 " ?
Relock the stopper of the
horizontal vane to the indoor unit.
(Refer to 10-1.5.)
Yes
Are all lamps flashing?
Yes
No( ∞ )
No
OK
Turn ON the
power supply.
To check the continuity of the interlock switch
(Fan), measure the resistance of connector
1 - 2
connected to CN1R1 on the indoor electronic
control P.C. board.
Turn OFF the
power supply.
Turn OFF the
power supply.
All lamps flash ON and OFF every 0.5-second.
Indoor unit and outdoor unit do not operate.
Check of PLASMA operation F
PLASMA lamp flashes 2-time.
POWER lamp flashes 1 to 5 times while PLASMA operation failure mode (Refer to 10-2.5) is recalled.
After performing the check, make sure to release the failure mode recall function.
w 2 Turn PLASMA operation OFF and ON again.
(For turning OFF PLASMA operation, refer to 10-2.3.)
(If it goes normal without turning OFF and ON, PLASMA lamp doesn't go OFF.)
High voltage (approx. -4.4 kV) is generated during PLASMA
operation.
Pay careful attention and never touch PLASMA ELECTRODE
UNIT and the high-voltage lead part (red wire).
Yes
No
OFF
PLASMA
operation
Continuously blinking.
Does PLASMA lamp flash
2-time with unit stopping?
Turn ON the power supply.
Replace the indoor electronic control P.C. board.
1 While pressing both OPERATION SELECT button and
TOO COOL button on the remote controller at the same time,
press RESET button.
2 First, release RESET button.
And release the other two buttons after all LCD except the set
temperature in operation display section of the remote
controller is displayed after 3 seconds.
3 Press OPERATE/STOP (ON/OFF) button (the set temperature
is displayed)
4 And press PLASMA button once with the remote controller
headed towards the indoor unit. w 1
PLASMA operation is selected.
w The plasma operation check mode is set.(Refer to 10-2.5.)
Does PLASMA lamp stay OFF, or continuously
blink?
Replace the PLASMA POWER P.C. board.
w 1 Regardless of normal or abnormal condition,
a short beep is emitted once the signal
is received.
Normal
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