Mitsubishi Electronics MSZ-GA25VA, MSZ-GA22VA Check of installation of the horizontal vane

When All lamps flash ON and OFF every 0.5-second. Indoor unit and outdoor unit do not operate.

E Check of installation of the horizontal vane

Start
Turn OFF the
power supply.
Is the stopper of the horizontal vane	No
locked to the indoor unit correctly?
Yes

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.

Relock the stopper of the horizontal vane to the indoor unit. Refer to 9-1.5.

Turn ON the power supply.

No

Are all lamp flashing? OK

Yes

Turn OFF the power supply.

No(∞ )

Is there resistance 0 "?

Yes

Replace the indoor electronic control P.C. board.

Replace the interlock switch(Fan).

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