Haier HDU-42CF03/H installation manual Malfunction

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Malfunction

Failure description	Code on wired controller

Room temp. sensor abnormal	E1

Indoor coil temp. sensor abnormal	E2

Outdoor temp. sensor abnormal	E3

Outdoor coil temp. sensor abnorma	E4

Over-current malfunction	E5

High / Low pressure abnormal	E6

Communication malfunction between indoor PCB and wired controller	E8

Communication malfunction between indoor PCB and outdoor PCB	E9

The float switch malfunction	E0

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Contents Duct Type AIR Conditioner Table of Contents Disposal of the old air conditioner Make sure the system is grounded Safety PrecautionsDo not wash the air conditioner with water Machine is adaptive in following situation Parts and Functions Parts and Functions Operation Buttons and display of the wire controllerCool Fan operation Auto RUN, COOL,HEAT and DRY Timer operation Timer ON-OFF Cooling, dehumidifying mode Heating mode This series changeover switch is set 1. on 2.OFF 3.OFF 4.OFF Unit fails to start MalfunctionCooling or heating is not sufficient Cooling is not sufficientMalfunction Followings are not malfunction Points to observe Care and MaintenanceHOT KEEPis operated in the following cases For Preparation of HeatingHot KeepInstallation place Is The Unit Installed CorrectlyWhen you change your address or the installation place For inspection and maintenanceInstall wire controller Installation Manual For Wire ControllerHint Wire sizeHint Safety precautions Installation Manual For Indoor UnitHeight of ceiling Choose installation placeHanger bolts installation Preparation before installationAdjusting to the levelness Installation of indoor unitDrain Piping Good pipingDrainage Test Installation of air suction and discharging ductProcedures Air volume Chosen chart of simple ductExamples of improper installation Operation method of fan controller Rotate this switchR0.4~0.8 Refrigerant pipeWiring connection Installation Manual For Electric WiringHaier Group