Daikin FNA25A2VEB9 User Reference Manual

Also see for FNA25A2VEB9: Installation manual Installer's reference guide Installation manual

Contents

8 TroubleshootingUser reference guide8FNA25~60A2VEB(9)Split system air conditioners4P543324-3 – 2018.087.3 After-sales service and warranty7.3.1 Warranty period▪ This product includes a warranty card that was filled in by thedealer at the time of installation. The completed card has to bechecked by the customer and stored carefully.▪ If repairs to the product are necessary within the warranty period,contact your dealer and keep the warranty card at hand.7.3.2 Recommended maintenance andinspectionSince dust collects when using the unit for several years,performance of the unit will deteriorate to some extent. As takingapart and cleaning interiors of units requires technical expertise andin order to ensure the best possible maintenance of your units, werecommend to enter into a maintenance and inspection contract ontop of normal maintenance activities. Our network of dealers hasaccess to a permanent stock of essential components in order tokeep your unit in operation as long as possible. Contact your dealerfor more information.When asking your dealer for an intervention, always state:▪ The complete model name of the unit.▪ The manufacturing number (stated on the nameplate of the unit).▪ The installation date.▪ The symptoms or malfunction, and details of the defect.WARNING▪ Do NOT modify, disassemble, remove, reinstall orrepair the unit yourself as incorrect dismantling orinstallation may cause an electric shock or fire. Contactyour dealer.▪ In case of accidental refrigerant leaks, make sure thereare no naked flames. The refrigerant itself is entirelysafe and non-toxic. R410A is a non-combustiblerefrigerant, and R32 is a mildly flammable refrigerant,but they will generate a toxic gas when theyaccidentally leak into a room where combustible airfrom fan heaters, gas cookers, etc. is present. Alwayshave qualified service personnel confirm that the pointof leakage has been repaired or corrected beforeresuming operation.7.3.3 Recommended maintenance andinspection cyclesBe aware that the mentioned maintenance and replacement cyclesdo not relate to the warranty period of the components.Component InspectioncycleMaintenance cycle(replacements and/orrepairs)Electric motor 1 year 20,000 hoursPCB 25,000 hoursHeat exchanger 5 yearsSensor (thermistor, etc.) 5 yearsUser interface and switches 25,000 hoursDrain pan 8 yearsExpansion valve 20,000 hoursSolenoid valve 20,000 hoursThe table assumes the following conditions of use:▪ Normal use without frequent starting and stopping of the unit.Depending on the model, we recommend not starting andstopping the machine more than 6 times/hour.▪ Operation of the unit is assumed to be 10 hours/day and2,500 hours/year.NOTICE▪ The table indicates main components. Refer to yourmaintenance and inspection contract for more details.▪ The table indicates recommended intervals ofmaintenance cycles. However, in order to keep the unitoperational as long as possible, maintenance work maybe required sooner. Recommended intervals can beused for appropriate maintenance design in terms ofbudgeting maintenance and inspection fees.Depending on the content of the maintenance andinspection contract, inspection and maintenance cyclesmay in reality be shorter than listed.8 TroubleshootingIf one of the following malfunctions occur, take the measures shownbelow and contact your dealer.WARNINGStop operation and shut off the power if anythingunusual occurs (burning smells etc.).Leaving the unit running under such circumstances maycause breakage, electric shock or fire. Contact your dealer.WARNINGIn case the unit is equipped with a refrigerant leakagesensor1, turn off the unit using the ON/OFF button on theuser interface only.The system MUST be repaired by a qualified service person.Malfunction MeasureIf a safety device such as a fuse, abreaker or an earth leakage breakerfrequently actuates or the ON/OFFswitch does not function properly.Turn off the main powerswitch. In case of R32refrigerant, turn off thepower using the ON/OFFbutton on the userinterface only and contactyour dealer.If water leaks from the unit. Stop operation.The operation switch does not functionproperly..Turn off the main powerswitch. In case of R32refrigerant, turn off thepower using the ON/OFFbutton on the userinterface only and contactyour dealer.If the user interface display indicates theunit number, the operation lamp flashesand an error code appears.Notify your installer andreport the error code.If the system does NOT properly operate except for the abovementioned cases and none of the above mentioned malfunctions isevident, investigate the system according to the followingprocedures.(1) Only for units using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.