User manual LG AD420ZM

[. . . ] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indoor Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Outdoor Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation Characteristic Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Defect Replace ­ 80 ­ [E03 error] (Master indoor unit) [E03 error] is detected when the indoor unit cannot receive a signal from the remote controller (also central controller). Check A and B remote controllers and communication lines of the central control system U3 and U4. As communication is impossible, this check code [E03] is not displayed on the remote controller and the central controller. [E01] is displayed on the remote controller and [C06 error] is displayed on the central controller. If these check codes generate during operation, the air conditioner stops. [F29 error] This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P . C. board, which generated during operation of the air conditioner. When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed on the central controller. (Approx. 1 minute) [SET] goes off. [SET] is displayed on remote controller. LED (D02) on indoor unit P. C. 10 seconds. Reboot (Reset) (Repetition) [P31 error] (Follower indoor unit) When the master unit of a group operation detected [E03], [L03], [L07] or [L08] error, the follower unit of the group operation detects [P31 error] and then the unit stops. There is no display of the check code or alarm history of the remote controller. c) Are connecting cables of indoor unit and remote controller correct? 2. Troubleshooting procedure When a trouble occurred, check the parts along with the following procedure. Trouble Confirmation of check code display Check defective position and parts. NOTE : For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables. ­ 83 ­ <Wireless remote controller type> 1. Before troubleshooting 1) Required tools/instruments · + and ­ screwdrivers, spanners, radio cutting pliers, nippers, etc. · Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal. · Is not 3-minutes delay (3 minutes after compressor OFF)?· Is not the outdoor unit in standby status though the remote controller reached the setup temperature?· Does not timer operate during fan operation?· Is not an overflow error detected on the indoor unit?· Is not outside high-temperature operation controlled in heating operation? [. . . ] Indoor Unit RAV-SM1403DT-A, AD420ZM 213 205 208 204 207 211 207 209 213 202 212 201 203 206 214 210 215 216 ­ 150 ­ Location No. 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 Part No. 43172203 4312C041 43019830 43020352 43020353 43170244 43139167 43139154 43139155 43179135 431S8089 4314J404 43122118 43166011 43166004 43166005 Description Pan Ass'y, Drain Motor, Fan, AC240V, 50Hz, 600W Bushing Fan Fan Hose, Drain, 25A Bell Mouth Band, Motor, Left Band, Motor, Right Band, Hose, 37-40 Owner's Manual Refrigeration Cycle Ass'y Case Ass'y, Fan Remote Controller, SX-A4EE Remote Controller, SX-A11JE2 Remote Controller, EX-W2JE2 1 1 1 1 1 1 2 2 2 1 1 1 2 1 1 1 Model Name RAV-SM1403DT-A AD420ZM 1 1 1 1 1 1 2 2 2 1 1 1 2 1 1 1 ­ 151 ­ RAV-SM1403DT-A, AD420ZM 411 403, 413 401 402 406 412 404, 410 405 409 408 407 Location No. 401 402 403 404 405 406 407 408 409 410 411 412 413 Part No. [. . . ]