Carrier 42QHC009DS series Owner's Manual

Also see for 38QHC009DS series: Installation manual Service manual Owner's manual Installation manual

Contents

trouble shooting

TROUBLE SHOOTING1413The following may occur during normal operation,and may not indicate malfunction.Automatically happens in heating mode - preventscold air blowing onto occupants.Frost removal on outdoor unit is inprogress (5 ~ 10mins).May occur when unit temperature is low and roomair is hot and humid.“Hissing”: normal – gas pressure equalizing whencompressor stops or starts."Squeaking": normal expansion and contraction ofplastic and metal parts.Rushing air – normal when louver resetsits position.May occur when air conditioner is used for thefirst time or has not been used for a long time.Usually caused by chemicals, cigarette smoke, cookingetc. If not the case call your suitable contractor.Room temperature is the same as that selected withthe remote. If not the case call a suitable contractor.May occur when outdoor temperatures are closeto or below zero degrees Celsius.If not the case call a suitable contractor.Normal when power is restored after apower failure.Interference from cell phone towers and remoteboosters may cause the unit to malfunction.Disconnect the power and then re-connect.Press the ON/OFF button on the remote controllerto restart operation.If the problem is not resolved call a suitablecontractor.Case ExplanationA 3 minutes delay protects the compressor.Cooling or heating is delayed.Fan speed changes – off , very slow andthen normalThe heating operation stops suddenly anddefrost-light blinks.Mist coming out of the indoor unitDust discharges from the unit.Emits a peculiar odour.Changes to fan only while cooling or heating.Turns on automaticallyLow volume sounds are emitted bythe air conditionerPoor heating performanceOperation is erratic, unpredictable orunresponsive.Guides, Tips and Cautions CONCERN PLEASE FIRST CHECK!• Is there a power failure?• Has a switch been turned off, a circuit breaker tripped or a fuse blown?• Are the batteries in the remoter control fresh?• Are the clock and timer on the remote set correctly?• Are the temperature and mode settings correct?• Are the air filters clean?• Are the windows and doors closed?• Is air flow unrestricted in & out of indoor & outdoor units?• Is fan speed on high and louvers allowing maximum flow?Unit will not operate.Not cool/warm enough.UNIT NOT RESPONDING AS REQUIRED?• Record the product’s model number,• Contact a suitable contractor,• Share all observed details!In the case of ANY of the following, turn off the unit immediately!• Power cord is damaged or abnormally warm.• Burning odours are smelled.• Loud or abnormal sounds are heard.• A power fuse blows or a circuit breaker trips frequently.• Water or other objects fall into or out of the unit.• Indicators blink continuously.• A self-diagnostic code is displayed e.g. E0, E1, E2 … or P0, P1, P2… etc.DO NOT ATTEMPT TO CORRECT THESE ITEMS YOURSELF!CONTACT A SPECIALIST SERVICE PROVIDER!( C)ˇTEMPAUTOCOOLDRYHEATFANHIGHMEDLOWMODE FAN SPEEDTIMER ONSLEEPON/OFFTIMER OFFAIRDIRECTIONRESET LOCKSET TEMPERATURESWINGLEDDISPLAY TURBOCAUTIONThe multi-system air conditioner can not be in different operating modes at the same time, such as oneunit being in the “COOL” mode and one unit being in the “HEAT” mode.When conducting different operations, the “HEAT” mode will be given priority. The indoor unit whichoperates in “COOL” or “FAN” mode will stop and display “P5”.

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