Daikin RXMQ4·5·6PVE Service Manual

Contents

Daikin RXMQ4·5·6PVE Service Manual Manual pdf 123 page image

Si34-603112 Troubleshooting3.28 “JA” Outdoor Unit: Malfunction of High Pressure Sensor......................1633.29 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor.......................1643.30 “L1” Outdoor Unit: Malfunction of PC Board ..........................................1653.31 “L4” Outdoor Unit: Malfunction ofInverter Radiating Fin Temperature Rise .............................................1663.32 “L5” Outdoor Unit: Inverter Compressor Abnormal ...............................1673.33 “L8” Outdoor Unit: Inverter Current Abnormal.......................................1683.34 “L9” Outdoor Unit: Inverter Start up Error..............................................1693.35 “LC” Outdoor Unit: Malfunction of Transmission betweenInverter and Control PC Board .............................................................1703.36 “P1” Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit ...1713.37 “P4” Outdoor Unit: Malfunction of Inverter Radiating FinTemperature Rise Sensor ....................................................................1723.38 “UO” Outdoor Unit: Low Pressure Drop Due to RefrigerantShortage or Electronic Expansion Valve Failure ..................................1733.39 “U2” Power Supply Insufficient or Instantaneous Failure ......................1753.40 “U3” Check Operation not Executed......................................................1773.41 “U4” Malfunction of Transmission between Indoor Units andOutdoor Units .......................................................................................1783.42 “U5” Malfunction of Transmission between Remote Controller andIndoor Unit............................................................................................1803.43 “U8” Malfunction of Transmission between Main andSub Remote Controllers .......................................................................1813.44 “U9” Malfunction of Transmission between Indoor andOutdoor Units in the Same System ......................................................1823.45 “UA” Excessive Number of Indoor Units ................................................1843.46 “UC” Address Duplication of Central Remote Controller ........................1853.47 “UE” Malfunction of Transmission between Central Remote Controllerand Indoor Unit.....................................................................................1863.48 “UF” System is not Set yet .....................................................................1883.49 “UH” Malfunction of System, Refrigerant System Address Undefined...1894. Troubleshooting by Indication on the CentralizedRemote Controller ...............................................................................1904.1 “UE” Malfunction of Transmission between CentralizedRemote Controller and Indoor Unit.......................................................1904.2 “M1” PC Board Defect ............................................................................1914.3 “M8” Malfunction of Transmission between OptionalControllers for Centralized Control .......................................................1924.4 “MA” Improper Combination of Optional Controllers forCentralized Control...............................................................................1934.5 “MC” Address Duplication, Improper Setting ..........................................1955. Troubleshooting by Indication on the Unified ON/OFF Controller.......1965.1 Operation Lamp Blinks .........................................................................1965.2 Display “Under Host Computer Integrate Control” Blinks(Repeats Single Blink)..........................................................................1985.3 Display “Under Host Computer Integrate Control” Blinks(Repeats Double Blink) ........................................................................201