User manual TOSHIBA RAV-1003CHE8 SERVICE MANUAL

[. . . ] WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDOOR UNIT CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Check indoor unit EEPROM and insertion into socket. Check indoor unit boards. E04 Serial signal from outdoor unit does OFF not reach indoor unit. (auto reset) · Wrong wire connection · Failure of outdoor unit serial transmitter · Failure of indoor unit serial receiver Duplication of indoor unit address Duplication of header indoor unit Group line in individual indoor unit Indoor unit group address not set Indoor unit capacity not set External interlock alarm input Failure of indoor unit DC fan OFF Indicated when an error is detected E08 L03 L07 L08 L09 L30 P12 Indicated when an error is detected OFF OFF OFF Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected P19 Failure of 4-way valve system · Indoor unit heat exchange temperature lowers after HEAT operation starts. Indoor unit OFF during alarming to other indoor units Improper mounting, disconnection or short-circuit of indoor unit heat exchange sensor TCJ Improper mounting, disconnection or short-circuit of indoor unit heat exchange sensor TC Improper mounting, disconnection or short-circuit of indoor unit room temp. sensor TA Failure of indoor unit EEPROM · EEPROM access error Communication error between header and follower indoor units OFF (auto reset) Indicated when an error is detected P31 OFF (follower units) (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected F01 F02 F10 F29 E18 ­ 33 ­ Failure mode detected by outdoor unit (Representative codes) · The check code used varies depending on the combination with the outdoor unit. Check code H01 Diagnosis function Possible causes Air conditioner status OFF Compressor breakdown · Compressor stops due to operating frequency decrease. · Overcurrent protection circuit is activated after a certain time from compressor startup. Failure of current detect circuit · Large AC current even during compressor OFF · Phase loss in power supply Low-pressure switch ON (applicable models) COOL : 30 seconds HEAT : 10 minutes Other outdoor unit errors · CDB-IPDU communication error (connector disconnection) · Abnormal heatsink temperature (over specified value) Phase detection protection circuit activated (normal models) OFF Conditions Indicated when an error is detected Indicated when an error is detected Judgment and action 1. Check power voltages (200±20 VAC). Check current detect circuit on the AC side. Improper compressor wiring (phase loss) 3. Lost-phase operation of power supply (3-phase models) 1. Note Do not press [CL] as this button clears entire error log of indoor unit. After checking the error log, press [TEST] to return to the normal indication. A B C Numbers appearing on the LCD <Seven-segment display> Hexadecimal number ­ 35 ­ TCC-LINK Central Control Remote Controller (TCB-SC642TLE) (1) Checking When an error occurs in the air conditioner, a Indication of unit number check code and an indoor unit number appear on UNIT No. Check code is displayed only during operation. If indication disappears, check errors following "Checking Error Log" below. Indication of alarm CHECK (2) Checking Error Log When an error occurs in the air conditioner, error log can be checked following the steps below. Error log can be checked in both operation ON and OFF states. A Press [SET] and [TEST] at the same time for 4 seconds or more. B Indication of "SERVICE CHECK" and UNIT No. C When selecting a group number (blinking), a unit number and the latest error log, if any, are displayed alternately. * Temperature setting is disabled at this time. Indication of unit number UNIT No. Indication of alarm CHECK D To check other errors, choose a code (01 to 04) with TEMP. E To check error log of another group, choose a group number with / buttons. [. . . ] Sends self thermo ON/OFF request to the main unit. (Example) 1-1 main unit communicates with 1-2 and 1-3 sub units without being affected by indoor units with refrigerant line address 2 or 3. ­ 72 ­ [2] Examples of Auto Address Setting from No Address Setting 1) Standard (one outdoor unit) a) Single b) Twin c) Double twin (1-1) (1-2) (1-1) (1-2) (1-3) (1-4) 1-1 (H/M) individual 1-2 H/M 1-1 F/S 1-2 F/M 1-1 F/S 1-3 H/S 1-4 F/S *** Turn ON the power. Address setting is completed automatically. *** 2) Group operation (multiple O/U = multiple indoor units with serial communication interface, no twin) 2-1 F/M 1-1 F/M 3-1 H/M 8-1 F/M 8 indoor units maximum *** Turn ON the power. [. . . ]