TROUBLESHOOTING

 

 

Symptom

Items to check

See Page

 

 

 

 

 

CHECK ONCE

Doesn’t operate at all:

● Has there been a power failure?

MORE

 

 

● Has a fuse blown out, or a circuit breaker been tripped?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

● Is the POWER switch set to the OFF position?

6

 

 

 

 

 

 

 

 

● Is the timer operating?

9 to 10

 

 

 

 

 

 

Poor Cooling perform-

● Is the air filter dirty?

 

 

ance:

● Are the air conditioner’s intake grille or outlet port blocked?

 

 

 

 

● Did you adjust the room temperature settings (thermostat) cor-

 

 

 

 

rectly?

 

 

 

 

● Is there a window or door open?

 

 

 

● Is a window allowing bright sunlight to enter? (Close the curtains.)

 

 

 

 

 

 

 

● Are there heating apparatus and computers inside the room, or

 

 

 

 

are there too many people in the room?

 

 

 

 

 

 

 

 

 

● Is the unit set for SUPER QUIET operation?

7

 

 

 

 

 

 

The unit operates

● Are the Remote Control Unit’s batteries dead?

 

 

differently from the

● Are the Remote Control Unit’s batteries loaded properly?

6

 

remote control unit’s

 

 

 

 

setting:

 

 

 

 

 

 

 

 

 

 

 

 

If the problem persists after performing these checks, or if you notice burning smells, or the

WARNING! TIMER indicator Lamp (Fig. 3 6) flashes, immediately stop operation, disconnect the Power and consult authorized service personnel.

OPERATING TIPS

Operation and Performance

In Event of Power Interruption

AUTO Restart

The air conditioner power has been interrupted by a power failure. The air conditioner will then restart automatically in its previous mode when the power is restored.

Operated by setting before the power failure. Then, the Air Flow Direction Louvers will automatically be restored to the direction before the power failure.

If a power failure occurs during TIMER operation, the timer will be reset and the unit will begin (or stop) operation at the new time setting. In the event that this kind of timer fault occurs the TIMER Indicator Lamp (green) will flash (see page. 5).

Use of other electrical appliances (electric shaver, etc.) or nearby use of a wireless radio transmitter may cause the air conditioner to malfunction. In this event, temporarily disconnect the Power, reconnect it, and then use the re- mote control unit to resume operation.

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Friedrich MR18DC3E, MW09C3E, MW12C3E Operating Tips, Operation and Performance, Auto Restart, Event of Power Interruption