Daikin Stylish Series Service Manual

Contents

Daikin Stylish Series Service Manual Manual pdf 51 page image

2 ComponentsService manual51(C)(F)TXA15~50A2V1B(W)(S)(T) + RXA42+50A2V1B +RXA20~35A2V1BSplit Stylish R32ESIE18-03 – 2018.09e dffa Clipb Thermistorc Thermistor holderd Insulatione Thermistor wiref Tie strap2 Connect the thermistor connector to the appropriate PCB.WARNINGWhen reconnecting a connector to the PCB, do NOT applyforce, as this may damage the connector or connector pinsof the PCB.3 Install the insulation around the thermistor.4 Fix the insulation and the thermistor wire using new tie straps.Is the problem solved? ActionYes No further actions required.No Return to the troubleshooting ofthe specific error and continuewith the next procedure.2.18.2 Other thermistorsChecking proceduresTo perform a mechanical check of the specific thermistorPrerequisite: Turn OFF the unit via the user interface.Prerequisite: Turn OFF the respective circuit breaker.Prerequisite: Remove the required plate work, see "2.13 Platework" on page 40.1 Locate the thermistor and remove the insulation if needed.Check if there is thermal contact between the thermistor andthe piping or ambient.Is the thermistor correctlyinstalled (thermal contactbetween the thermistor and thepiping or ambient)?ActionYes Perform an electrical check of thespecific thermistor, see"Checking procedures" onpage 51.No Correctly install the thermistor,see Repair procedures.Repair proceduresAs the room thermistor is located on the same PCB as the humiditysensor, see "2.6 Humidity sensor" on page 28 for the repairprocedures.2.19 Wifi control PCB2.19.1 Checking procedures1 As there is no specific check procedure for this component, firstperform a check of the indoor unit PCB to check if the wificontrol PCB needs to be replaced. See "2.8.1 Checkingprocedures" on page 30.After complete check of theindoor unit PCB, is theproblem solved?ActionYes No further actions required.No Replace the wifi control PCB, see"2.19.2 Repair procedures" onpage 51.2.19.2 Repair proceduresTo remove the wifi control PCBPrerequisite: Turn OFF the unit via the user interface.Prerequisite: Turn OFF the respective circuit breaker.Prerequisite: Remove the required plate work, see "2.13 Platework" on page 40.1 Disconnect the wifi control PCB connector from the indoor unitPCB.2 Carefully click the complete wifi control PCB assembly out ofthe indoor unit.aa Wifi control PCB assembly3 To install the wifi control PCB assembly, see "2.19.2 Repairprocedures" on page 51.To install the wifi control PCB1 Click the wifi control PCB assembly on the indoor unit.