Toshiba MMD-AP0481HF2UL Service Manual

Also see for MMD-AP0481HF2UL: Service manual Owner's manual Installation manual Manual

– 97 –– 17 – Check codes and parts to be checkedCheck methodOn the remote control (Wired remote control, Central control remote control) and the interface P.C. board of theoutdoor unit (I/F), a check display LCD (Remote control) or 7-segment display (on the outdoor interface P.C. board)to display the operation is provided. Therefore the operation status can be known. With this self-diagnosis function,a trouble or position with trouble of the air conditioner can be found as shown in the table below.Check code listThe following list shows each check code. Find the check contents from the list according to part to be checked.• To check from indoor remote control: See “Wired remote control display” in the list.• To check from outdoor unit: See “Outdoor 7-segment display” in the list.• To check from indoor unit with a wireless remote control: See “Sensor block display of receiving unit” in the list.IPDU : Intelligent Power Drive Unit: Lighting, : Flashing, : Goes offALT : Flashing is alternately when there are two flashing LED.SIM : Simultaneous flashing when there are two flashing LED.Check code Wireless remote controlCheck code name JudgingdeviceWired remotecontrol displayOutdoor 7-segment display Sensor block display ofreceiving unitAuxiliary code Operation Timer Ready FlashE01 — —Communication trouble between indoorand remote control(Detected at remote control side)RemotecontrolE02 — — Remote control transmission trouble RemotecontrolE03 — — Communication trouble between indoorand remote control (Detected at indoorside)IndoorE04 — —Communication circuit trouble betweenindoor / outdoor (Detected at indoorside)IndoorE06 E06 No. of indoor units in which sensor has been normallyreceived Decrease of No. of indoor units I/F— E07 —Communication circuit trouble betweenindoor / outdoor (Detected at outdoorside)I/FE08 E08 Duplicated indoor addresses Duplicated indoor addresses Indoor / I/FE09 — — Duplicated header remote controls RemotecontrolE10 — — Communication trouble between indoorMCU IndoorE12 E12 01: Indoor / Outdoor communication02: Communication between outdoor units Automatic address start trouble I/FE15 E15 — Indoor is nothing during automaticaddressing I/FE16 E16 00: Capacity over01 ~:No. of connected unitsCapacity over / No. of connected indoor unitsCombined capacity of indoor unitsexceeds 120% of combined capacity ofoutdoor units. (SMMS-i only)I/FE18 — — Communication trouble between indoor units IndoorE19 E19 00: Header is nothing02: Two or more header units Outdoor header units quantity trouble I/FE20 E20 01: Outdoor of other line connected02: Indoor of other line connectedOther line connected during automaticaddress I/FE23 E23 — Sending trouble in communicationbetween outdoor units I/FE25 E25 — Duplicated follower outdoor addresses I/FE26 E26 No. of outdoor units which received signal normally Decrease of No. of connected outdoor units I/FE28 E28 Detected outdoor unit number Follower outdoor unit trouble I/FE31 E31 IPDU communication trouble I/FF01 — — ALT Indoor TCJ sensor trouble IndoorF02 — — ALT Indoor TC2 sensor trouble IndoorF03 — — ALT Indoor TC1 sensor trouble IndoorF04 F04 — ALT TD1 sensor trouble I/FF05 F05 — ALT TD2 sensor trouble I/FF06 F06 TE1 sensorTE2 sensor ALT TE1 sensor troubleTE2 sensor trouble I/FF07 F07 — ALT TL sensor trouble I/FF08 F08 — ALT TO sensor trouble I/FF09 F09 01: TG102: TG2TG1 sensor troubleTG2 sensor trouble I/FF10 — — ALT Indoor TA sensor trouble IndoorF11 — TF sensor ALT TF sensor trouble IndoorF12 F12 01: TS1 sensor03: TS3 sensor ALT TS1 sensor trouble, TS3 sensor trouble I/FF13 F1301: Comp. 1 side02: Comp. 2 side03: Comp. 3 sideALT TH sensor trouble IPDUF15 F15 — ALT Outdoor temp. sensor miswiring (TE1, TL) I/FF16 F16 — ALT Outdoor pressure sensor miswiring (Pd, Ps) I/FF22 F22 — ALT TD3 trouble I/FF23 F23 — ALT Ps sensor trouble I/FF24 F24 — ALT Pd sensor trouble I/FF29 — — SIM Indoor other trouble IndoorF31 F31 — SIM Indoor EEPROM trouble I/FH01 H01 01: Comp. 1 side02: Comp. 2 side03: Comp. 3 sideCompressor break down IPDUH02 H0201: Comp. 1 side02: Comp. 2 side03: Comp. 3 sideCompressor trouble (lock) IPDUH03 H0301: Comp. 1 side02: Comp. 2 side03: Comp. 3 sideCurrent detect circuit system trouble IPDUH05 H05 — TD1 miswiring I/FH06 H06 — Low pressure protective operation I/FH07 H07 — Oil level down detective protection I/FCheck code Wireless remote controlCheck code name JudgingdeviceWired remotecontrol displayOutdoor 7-segment display Sensor block display ofreceiving unitAuxiliary code Operation Timer Ready FlashSub-codeA3-IPDU Fan-IPDU Sub-codeA3-IPDU Fan-IPDU1 2 3 1 2 1 2 3 1 201 c 0D c c c02 c 0E c c c03 c c 0F c c c c04 c 11 c c05 c c 12 c c06 c c 13 c c c07 c c c 18 c c08 c 19 c c c09 c c 1A c c c0A c c 1B c c c c0B c c c Circle (c): IPDU trouble0C c c33-EN 34-EN