Daikin FNA35A2VEB Operation Manual

Also see for FNA25A2VEB: Installation manual Installer's reference guide Installer's reference guide

Contents

7 TroubleshootingOperation manual6FNA25~60A2VEBSplit system air conditioners4P456953-1 – 2017.066.2 Cleaning the air filter, suctiongrille, air outlet and outside panels6.2.1 To clean the drain panClean the drain pan so that it does NOT become clogged and dusty.Cover the drain pan to prevent dust from entering it.6.2.2 To clean the air outlet and outside panelsWARNINGDo NOT let the indoor unit get wet. Possibleconsequence: Electric shock or fire.NOTICE▪ Do NOT use gasoline, benzene, thinner polishingpowder or liquid insecticide. Possible consequence:Discoloration and deformation.▪ Do NOT use water or air of 50°C or higher. Possibleconsequence: Discoloration and deformation.▪ Do NOT scrub firmly when washing the blade withwater. Possible consequence: The surface sealingpeels off.Clean with a soft cloth. If it is difficult to remove stains, use water orneutral detergent.6.2.3 To clean the air filterWhen to clean the air filter:▪ Rule of thumb: Clean every 6 months. If the air in the room isextremely contaminated, increase the cleaning frequency.▪ Depending on the settings, the user interface can display theTIME TO CLEAN AIR FILTER notification. Clean the air filterwhen the notification is displayed.▪ If the dirt becomes impossible to clean, change the air filter(= optional equipment).How to clean the air filter:1 Turn OFF the power.2 Remove the air filter. Push the hooks and pull the filter asshown in the illustration below. (2 hooks for 25 and 35 type or 3hooks for 50 and 60 type)front suction bottom suction21213 Clean the air filter. Use a vacuum cleaner or wash with water.If the air filter is very dirty, use a soft brush and neutraldetergent.4 Dry the air filter in the shadow.5 Reattach the air filter. Hook the filter behind the flap andattach the filter to the main unit while pushing down the hooks.front suction bottom suction21216 Turn ON the power.7 Press the FILTER SIGN RESET button.Result: The TIME TO CLEAN AIR FILTER notification disappearsfrom the user interface.7 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.(1) Only for units using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.