Brand: TOSHIBA
Category: Air Conditioner
Document Type: Manual
Language: EN
Manual for RAS-B10N3KV2-E
Uploaded: Nov. 21, 2025, 6:02 p.m.
Manual Publish Date: 2014-05-01
The manual provides detailed information on the operation, installation, and maintenance of TOSHIBA split-type air conditioners (RAS-B10N3KV2-E, RAS-B13N3KV2-E, RAS-10N3AV2-E, RAS-13N3AV2-E) using R410A refrigerant. It covers safety precautions, specifications, refrigerant handling, wiring diagrams, operation descriptions, installation procedures, troubleshooting, and parts lists. Key operational aspects include cooling and heating functions, refrigerant cycle, and performance curves based on temperature and compressor speed.
Troubleshooting and error codes
| No. | Part name | Procedure | Remarks |
| ② | Front cabinet | 1. Detachment 1) Perform step 1 in . 2) Remove the fixing screws (ST1TØ4 × 10L 2 pcs.) used to secure the front cabinet and inverter cover, the screws (ST1TØ4 × 10L 4 pcs.) used to secure the front cabinet at the bottom, and the fixing screws (ST1TØ4 × 10L 2 pcs.) used to secure the motor base. • The front cabinet is fitted into the side cabinet (left) at the front left side so pull up the top of the front cabinet to remove it. 2. Attachment 1) Insert the claw on the front left side into the side cabinet (left). 2) Hook the bottom part of the front right side onto the concave section of the bottom plate. Insert the claw of the side cabinet (right) into the square hole in the front cabinet. 3) Return the screws that were removed above to their original positions and attach them. | Front cabinet Claw Square hole Concave section |
| Inverter assembly | 1) Perform work of item 1 in . 2) Remove screw (ST1TØ4 × 10L 2 pcs.) of the upper part of the front cabinet. • If removing the inverter cover in this condition, P.C. board can be checked. • If there is no space above the unit, perform work of 1 in 2. Be careful to check the inverter because high-voltage circuit is incorporated in it. 3) Perform discharging by connecting + polarity by discharging resistance (approx. 100Ω40W) or plug of soldering iron to +, terminals a of the C14 (printed “CAUTION HIGH VOLTAGE" is attached.) electrolytic capacitor (760μF or 500μF) on P.C. board. Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains according to trouble type in some cases. NOTE This capacitor is one with mass capacity. Therefore, it is dangerous that a large spark generates if short-circuiting between + . 4) Remove screw (ST1TØ4 x 10L 4pcs.) fixing the terminal part of inverter box to the main body. 5) Remove the front cabinet by performing step 1 in , and remove the fixing screws (ST1TØ4 x 10L) for securing the main body and inverter box. 6) Remove various lead wires from the holder at upper part of the inverter box. 7) Pull the inverter box upward. 8) Disconnect connectors of various lead wires. Requirement As each connector has a lock mechanism, avoid to remove the connector by holding the lead wire, but by holding the connector. | Inverter cover P.C. board (Soldered surface) Discharging position (Discharging period 10 seconds or more) Plug of soldering iron Terminal block Partition The connector is one with lock, so remove it while pushing the part indicated by an arrow. Be sure to remove the connector by holding the connector, not by pulling the lead wire. |