SiUS181305Eiv Table of Contents8.2 Thermostat Sensor in Remote Controller................................................... 848.3 Freeze Prevention Control ......................................................................... 868.4 Hot Start Control (In Heating Operation Only)............................................ 86Part 6 Test Operation and Field Settings ...................................... 871. Test Operation ..........................................................................................881.1 Procedure and Outline ............................................................................... 881.2 Operation when Power is Turned On ......................................................... 901.3 Branch Provider (BP) Unit .......................................................................... 911.4 RA Indoor Unit: CTXS, FTXS, CDXS, FDXS Series .................................. 931.5 SA Indoor Unit: FFQ Series........................................................................ 942. Field Settings ............................................................................................962.1 Outdoor Unit ............................................................................................... 962.2 RA Indoor Unit: CTXS, FTXS, CDXS, FDXS Series ................................ 1102.3 SA Indoor Unit: FFQ Series...................................................................... 113Part 7 Remote Controller ............................................................. 1211. CTXS07JVJU, CTXS09/12HVJU ............................................................1222. CTXS07LVJU, FTXS15/18/24LVJU........................................................1243. FDXS09/12LVJU, CDXS15/18/24LVJU ..................................................1264. FFQ09/12/15/18LVJU .............................................................................1284.1 Wired Remote Controller..................................................... 1284.2 Wireless Remote Controller .............................................. 134Part 8 Troubleshooting................................................................. 1361. Troubleshooting with LED .......................................................................1381.1 Outdoor Unit ............................................................................................. 1381.2 Branch Provider (BP) Unit ........................................................................ 1431.3 Indoor Unit................................................................................................ 1442. Service Check Function ..........................................................................1452.1 CTXS, FTXS, CDXS, FDXS Series.......................................................... 1452.2 FFQ Series ............................................................................................... 1483. Error Codes and Description...................................................................1544. Troubleshooting for CTXS, FTXS, CDXS, FDXS Series.........................1564.1 Indoor Unit PCB Abnormality ................................................................... 1564.2 Freeze-up Protection Control or Heating Peak-cut Control...................... 1584.3 Fan Motor or Related Abnormality ........................................................... 1604.4 Thermistor or Related Abnormality........................................................... 1644.5 Check for CTXS, FTXS, CDXS, FDXS Series ......................................... 1655. Troubleshooting for FFQ Series..............................................................1675.1 Indoor Unit PCB Abnormality ................................................................... 1675.2 Drain Level Control System Abnormality.................................................. 1685.3 Fan Motor or Related Abnormality ........................................................... 1695.4 Drain System Abnormality........................................................................ 1705.5 Thermistor or Related Abnormality........................................................... 1715.6 Remote Controller Thermistor Abnormality .............................................. 172