Haier HDU-18CF03, HDU-18HF03, HDU-28CF03 installation manual Malfunction, Unit fails to start

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Malfunction

please check the following things about your air conditioner before making a servie call.

Unit fails to start

Is the power source switch adjust cut in?

ON

OFF

Power supply switch is not ON.

Is city supply power in

Isn't the signal receiving

Isn't the earth leakage

normal?

section exposed to the

breaker in action?

 

direct sunlight or strong

 

 

illumination?

It is dangerous. Turn off

 

 

Power

 

the power supply switch

stoppage?

 

immediately and contact

 

 

 

 

the sales dealer.

Cooling or heating is not sufficient

Is the thermostat adjust Isn't the air filter dirty?

Isn't any doors or windows

Doesn't any obstacle

as required?

left open?

exist at the air inlet or

 

 

outlet?

 

 

 

Isn't the swing louver

Cooling is not sufficient

 

horizontal?

 

 

 

Isn't sun-shine invading

Isn't any unexpected

Isn't the room much

(At HEATING mode)

If swing louver is horizontal,

direct?

heating load generated?

crowded?

the blow wind does not reach

 

 

 

floor.

 

 

 

The wind does not blow

 

 

 

 

 

 

during heating operation

 

 

 

Isn't it warming up?

 

 

 

When the air conditioner does not operate properly after you have checked the above mentioned items or when the following phenomenon is observed, stop the operation of the air conditioner and contact your sales dealer.

The fuse or breaker often shuts down.

Water drops off during cooling operation.

There is a irregularity in operation or abnormal sound is audible.

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Contents Duct Type AIR Conditioner Table of Contents Disposal of the old air conditioner Safety Precautions Make sure the system is groundedDo not wash the air conditioner with water Rated Maximum Minimum Indoor CoolingOutdoor Heating IndoorParts and Functions Power ON/OFF Parts and Functions OperationCool Fan operation Auto RUN, COOL,HEAT and DRY operation 1After unit start, select your desired operation mode 2TIMER mode selection3Timer setting 4Confirming your settingPress Timer button to change Timer mode 3Time setting for Timer onTime confirming for Timer on 5Time setting for Timer OFFCooling, dehumidifying mode Heating mode This series changeover switch is set 1. on 2.OFF 3.OFF 4.OFF Malfunction Unit fails to startMalfunction Followings are not malfunction Care and Malntenance Points to observeWhen heating is started For Preparation of HeatingHot KeepIs The Unit Installed Correctly Installation placeInstallation Manual For Wire Controller Install wire controllerIndoor unit wiring Installation Manual For Indoor Unit Safety precautionsIndoor unit Installation Manual For Indoor Unit Sketch map of long duct Installation of air return duct Installation of air sending ductThermal insulation of duct Foundation bolt Pipe and insulation material RequirementsHose Supplementary refrigerant Allowable pipe length and drop Pipe material and sizeConnection of refrigerant pipe Open all valves Vacuum pumpingGas leakage detection Electric wiring Haier Group