Mitsubishi Electronics MSZ-FA25VA, MSZ-FA35VA Safety Deviceplasma Unit, Plasma Deodorizing 0V?

When PLASMA/WASH lamp flashes 2-time.

wThe power failure mode for PLASMA DEODORIZING power is memorized when the failure mode is called.

F Check of PLASMA DEODORIZING power

After performing the check, make sure to release the failure mode recall function.

Turn ON the power supply.

While the operation is being

stopped, doesYes PLASMA/WASH lamp flash

twice?

No

Make sure that the front panel is firmly closed.

1During pressing both OPERATION SELECT button and TOO COOL button on the remote controller at the same time, press RESET button.

2First, release RESET button.

And release the other two buttons since all LCD in operation display section of the remote controller is displayed after 3 seconds. (Failure mode recall function is set.)

3Press OPERATE/STOP (ON/OFF) button.

4 After a short beep sound is emitted, press once PLASMA button.

PLASMA DEODORIZING operation is selected.

wThe plasma power operation check mode is set.(Refer to 9-2.5.)

High voltage (approx. -3.9kV) is generated during PLASMA DEODORIZING power operation.

Pay careful attention and never touch PLASMA/WASH unit and the high-voltage lead part (red wire).

Replace the indoor electronic control P.C. board is out of order.

1 During 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 since all LCD in operation display section of the remote controller is displayed after 3 seconds. (Failure mode recall function is set.)

3 Press OPERATE/STOP (ON/OFF) button.

4 After a short beep sound is emitted, press once PLASMA button.

PLASMA DEODORIZING operation is selected.

PLASMA DEODORIZING operation

Does PLASMA/WASH lamp stay OFF, or continuously flash?

Continuously flashes.

Stays OFF	PLASMA DEODORIZING power supply is normal.
	The front panel is not firmly closed, therefore the
	protection by the interlock switch is active.

w1 Turn PLASMA DEODORIZING power OFF and ON again. (For turning off PLASMA DEODORIZING power, refer to 9-2.3.)

(If it goes normal without turning OFF and ON, PLASMA/WASH lamp doesn't go OFF.

	Remove the plasma unit, firmly close the			If the plasma unit is dirty, clean the unit.
				After cleaning, make sure to attach the unit when it is
	front panel, and then perform PLASMA		Stays OFF
				completely dry.
	DEODORIZING power operation check (w1).
				If the air conditioner goes ON with the plasma unit
	Does PLASMA/WASH lamp stay OFF, or
				being wet, protection gets active and PLASMA/WASH
	continuously flash?
				lamp continuously flashes.
		Continuously flashes.
	Turn OFF the power supply, and check the		No
	SAFETY DEVICE(PLASMA UNIT).			Firmly fix the SAFETY DEVICE.
	Is it firmly fixed?
		Yes
Turn ON and OFF the SAFETY DEVICE			No
(PLASMA UNIT) using something like a screw
driver, and measure the resistance value between				Replace the SAFETY DEVICE(PLASMA UNIT).
CN1T2 1 and 3 on the indoor electronic control
P.C. board. Does the switch work?
		Yes
	Keep the SAFETY DEVICE(PLASMA UNIT)		No
	ON using something like a screw driver.
			9.5V DC is generated.
	Turn ON the power supply.
	While the operation is being stopped, is the			Replace the indoor electronic control P.C. board.
	voltage between CN1 1(+) and 2(GND)
	on the PLASMA POWER P.C. board
	(PLASMA DEODORIZING) 0V?
		Yes
Set the plasma power failure mode recall function.
	When PLASMA button is pressed, is		No	Replace the indoor electronic control P.C. board.
	there voltage of 12.5V DC between CN1			Check the wiring of CN1T1 on the indoor electronic control
	1(+) and 2(GND)?			P.C. board.
		Yes
	Replace the PLASMA POWER P.C. board
	(PLASMA DEODORIZING).

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