Name: Manual for RAS-13SKV-E
Brand: TOSHIBA
Availability: InStock

Troubleshooting and error codes

No.	Part name	Procedure	Remarks
1	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) TOSHIBA Discharging position (Discharging period 10 seconds or more) A screw (ST1T-4 x 8MSZN Plug of soldering iron P.C. board (Soldered surface) Put each leads through the hole. The connector is one with lock, so remove it while pushing the part indicated by an arrow. Put each leads through the hole. Be sure to remove the connector by holding the connector, not by pulling the lead wire.
4	Control board assembly	1. Disconnect the leads and connectors connected to the other parts from the control board assembly. 1) Leads • 3 leads (black, white, orange) connected to terminal block. • Lead connected to compressor : Disconnect the connector (3P). • Lead connected to reactor : Disconnect the two connectors (2P). 2) Connectors (x8) CN300: Outdoor fan motor (3P: white)* (See NOTE) CN701: 4-way valve (2P: yellow)* CN600: TE sensor (2P: white)* CN700: PMV (6P: white) CN603: TS sensor (3P: white)* CN601 :TD sensor (3P: white)* CN602: TO sensor (2P: white) NOTE These connectors have a disconnect prevention mechanism: as such, the lock on their housing must be released before they are disconnected. 2. Remove the control board assembly from the P.C. board base. (Remove the heat sink and control board assembly while keeping them screwed together.) NOTE Disengage the four claws of the P.C. board base, hold the heat sink, and lift to remove it. 3. Remove the two fixing screws used to secure the heat sink and control board assembly. 4. Mount the new control board assembly. NOTE When mounting the new control board assembly, ensure that the P.C. board is inserted properly into the P.C. board support groove.	CN603 CN601 CN600 CN701 Π CN700 CN602 CN300 CN300, CN701, CN600 and CN603 are connectors with locking mechanisms: as such, to disconnect them, they must be pressed in the direction of the arrow while pulling them out. P.C. board base P.C. board
⑤	Side cabinet	1. Side cabinet (right) 1) Perform step 1 in ② and all the steps in 3. 2) Remove the fixing screw (ST1TØ4 × 10L 4 pcs.) used for securing the side cabinet to the bottom plate and valve fixing panel. 2. Side cabinet (left) 1) Perform step 1 in 2. 2) Remove the fixing screw (ST1TØ4 × 10L 1 pc.) used to secure the side cabinet (left) onto the heat exchanger. 3) Remove the fixing screw (ST1TØ4 × 10L 2 pcs.) used for securing the side cabinet to the bottom plate and heat exchanger. Detail A Detail B Detail C Hook the claw noto the bottom plate The back body section hooked onto the bottom plate here.
⑥	Fan motor	1) Perform work of item 1 of ① and ②. 2) Remove the flange nut fixing the fan motor and the propeller. • Flange nut is loosened by turning clockwise. (To tighten the flange nut, turn counterclockwise.) 3) Remove the propeller fan. 4) Disconnect the connector for fan motor from the inverter. 5) Remove the fixing screws (4 pcs.) holding by hands so that the fan motor does not fall. * Precautions when assembling the fan motor Tighten the flange nut using a tightening torque of 4.9 N•m.	Propeller fan Fan motor Flange nut
⑦	Compressor	1) Perform work of item 1 of ① and ⑤. 2) Extract refrigerant gas. 3) Remove the partition board. (ST1TØ4 × 10L 3 pcs.) 4) Remove the sound-insulation material. 5) Remove terminal cover of the compressor, and disconnect lead wire of the compressor from the terminal. 6) Remove pipe connected to the compressor with a burner. • Take care to keep the 4-way valve away from naked flames. (Otherwise, it may malfunction.) 7) Remove the fixing screw of the bottom plate and heat exchanger. (ST1TØ4 × 10L 1 pc.) 8) Remove the fixing screw of the bottom plate and valve fixing plate. (ST1TØ4 × 10L 1 pc.) 9) Pull upward the refrigeration cycle. 10) Remove BOLT (3 pcs.) fixing the compressor to the bottom plate. * Precautions when assembling the compressor. Tighten the compressor bolts using a tightening torque of 4.9 N•m.	Partition board Compressor Valve fixing plate
⑧	Reactor	1) Perform work of item 1 of ②, and ③. 2) Remove screws fixing the reactor. (ST1TØ4 × 10L 4 pcs.)	Reactor
⑨	Electronic expansion valve coil	1. Detachment 1) Perform step 1 in ②, all the steps in ③ and 1 in ⑤. 2) Remove the coil by rotating it at 90° toward either direction. 2. Attachment 1) Insert a valve coil in a volve body to the bottom, and fix it by rotating at 90° toword either direction. And confirm to fix it surely.	Lead connecting part Notch Rotate 90° Coil fixing position Coil inserting position Fixing hole for coil
⑩	Fan guard	1. Detachment 1) Perform work of item 1 of ②. 2) Remove the front cabinet, and put it down so that fan guard side directs downward. Perform work on a corrugated cardboard, cloth, etc. to prevent flaw to the product. 3) Remove the hooking claws by pushing minus screwdriver according to the arrow mark in the right figure, and remove the fan guard. 2. Attachment 1) Insert claws of the fan guard in the holes of the front cabinet. Push the hooking claws (9 positions) by hands and fix the claws. Check that all the hooking claws are fixed to the specified positions.	Minus screwdriver Hooking claw
11	TE sensor (outdoor heat exchanging temperature sensor) • Attachment Install the sensor onto the straight pipe part of the condenser output pipe. Detail C for RAS-10SAVR-E, 13SAV-E Detail C for RAS-13-16SAVR-E, 16SAV-E	Sensor lead Straight Part Remarks • Shown in the above figure is the model 13SAVR-E and 16SAV-E. • The sensor mounting positions in the model 10SAVR-E, 13SAV-E and 16SAVR-E are all the same witth the sole exсерtion of the TE sensor. Refer to the figure shown on the left. Arrow D Detail B Detail C
12	TS sensor (Suction pipe temperature sensor) • Attachment Install the sensor onto the straight pipe part of the suction pipe. Be careful for the lead direction of the sensor.	TS sensor
13	TD sensor (Discharge pipe temperature sensor) • Attachment With its leads pointed upward, install the sensor onto the vertical straight pipe part of the discharge pipe.	TD sensor
14	TO sensor (Outside air temperature sensor) • Attachment Insert the outdoor air temperature sensor into the holder, and install the holder onto the heat exchanger. TO sensor holder Arrow D
15	Replacement of temperature sensor for servicing only Common service parts of sensor TO, TS, TE, TD	1) Cut the sensor 100 mm longer than old one. 2) Cut the protective tube after pulling out it (200 mm). 3) Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part. 4) Pass the stripped part through the thermal constringent tube. 5) Cut the old sensor 100 mm length on the connector side, and recycle that connector. 6) Tear the lead wire in two on the connector side and strip the covering part. 7) Twist the leads on the connector and sensor sides, and solder them. 8) Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them. 9) Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used. 10) Fix the sensor again. NOTE 1) Store the joint part of the sensor and the connector in the electric parts box. 2) Never joint them near the thermal sensor part. Otherwise it would cause insulation inferiority because of dew drops. 3) When replacing the sensor using the colored protective tube, wind the color tape matching the color of that tube. These are parts for servicing sensors. Please check that the accessories shown in the right table are packed. Parts name Q'ty Remarks Sensor 1 Length : 3m Sensor Spring (A) 1 For spare Sensor Spring (B) 1 For spare Thermal constringent tube 3 Including one spare Color tape 1 9 colors Terminal 3	Thermal sensor part Cutting here Connector 100 Thermal constringent tube Cutting here Soldered part Dryer Winding the color tape

Manual for RAS-13SKV-E

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Troubleshooting and error codes