15CHECK BEFORE REQUIRING SERVICESIf your air conditioner still does not work properly although you checked the points as described above, first stop the operationand turn off the power switch. Then contact your dealer and report the serial number and symptom. Never repair your airconditioner by yourself since it is very dangerous for you to do so. You also report if the inspection mark and the letters E, F,H, L, P in combination with the numbers appear on the LCD of the remote control unit.TIPS FOR ENERGY SAVINGAvoid• Do not block the air intake and outlet of the unit. If either is obstructed, the unit will not work well, and may bedamaged.• Do not let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed bythe sun, it will take longer to cool the room.Do• Always try to keep the air filter clean. (Refer to “CARE AND CLEANING”.) A clogged filter will impair the performance of theunit.• To prevent conditioned air from escaping, keep windows, doors and any other openings closed.Should the power fail while the unit is runningIf the power supply for this unit is temporarily cut off, the unit will automatically resume operation once power is restored using thesame settings before the power was interrupted.Symptom Cause RemedyAir conditioner does not run atall although power is turnedon.Power failure or after power failure Press ON/OFF operation button on remote controlunit again.Operation button is turned off. • Switch on power if breaker is turned off.• If breaker has been tripped, consult your dealerwithout turning it on.Fuse blow out. If blown out, consult your dealer.Poor cooling or heatingperformanceAir intake or air discharge port of indoorand outdoor units is clogged with dust orobstacles.Remove dust or obstruction.Wind speed switch is set to “Low”. Change to “High” or “Strong”.Improper temperature settings Refer to “TIPS FOR ENERGY SAVING”.Room is exposed to direct sunlight incooling mode.Doors and /or windows are open.Air filter is clogged. Refer to “CARE AND CLEANING”.Too much heat sources in room incooling mode.Use minimum heat sources and in a short time.Too many people in room in coolingmode.Reduce temperature settings or change to “High” or“Strong”.NOTE