5. Troubleshooting Troubleshooting Code on Display Panel & Solutions. Troubleshooting

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1 Code on Display Panel & Solutions for each Error Code Error Code Cause Robotic vacuum cleaner is caught, stuck or trapped while navigating. A foreign substance (string, paper, toy etc.) is caught in the power brush. A foreign substance (string, paper, toy etc.) is caught in the left driving wheel. A foreign substance (string, paper, toy etc.) is caught in the right driving wheel. Check bumper sensor. SOLUTION Turn off the Power Switch at the bottom and move the robotic vacuum cleaner to a different location. Turn off the Power Switch at the bottom and remove the foreign substance from the power brush. Turn off the Power Switch at the bottom and remove the foreign substance from the left driving wheel. Turn off the Power Switch at the bottom and remove the foreign substance from the right driving wheel. Slightly pull the stuck bumper outward. A foreign substance (dust, stain etc.) is on the Obstacle sensor window. A foreign substance (Dust, stain etc.) is on the Cliff sensor window. Dust bin not inserted. A foreign substance (String, cloth etc.) is caught on the edge-cleaning side rotating brush. Turn off the Power Switch at the bottom and wipe the foreign substance from the front and rear sensor windows using a soft cloth. Turn off the Power Switch at the bottom and wipe the foreign substance on the cilff sensor window with a soft cloth. Insert the dust bin until you hear a Click sound. Turn off the Power Switch at the bottom and wipe the foreign substance from the edge-cleaning side rotating brush. If you press the Start/Stop button or turn off the Power Switch, the error code is cleared. When an error code occurs, a voice announcement will be heard. 5-1

2 5-2. Self-Diagnosis & Solutions Make sure to turn off the Power Switch before repairing the unit. Symptom Cause The Suction Motor does not rotate. The Driving Wheel does not rotate. The Power Brush does not rotate. Suction is weak. Battery drained Motor damaged Wire broken Wire-Housing Pin loose Battery defect Protector tripped due to battery overheat PBA MAIN defect Material stuck in the Driving Wheel Gear Box broken Battery drained Motor broken Motor wire cut Wire terminal contact defect PBA MAIN defect Battery defect Protector tripped due to battery overheat Material stuck in the Power Brush Battery drained Motor wire broken Motor broken Protector tripped due to Motor overheat Motor Housing Terminal loose Battery defect PBA MAIN defect Protector tripped due to battery overheat Battery run down Battery running low Dust Bin full Improper Assembly of the Power Brush Rotation Error due to Foreign Substances stuck in the Power Brush Insufficient Rotation Power due to Foreign Substances stuck in the Suction Motor Recharge the Battery Replace the Motor Connect the wiring Tighten the Pin Replace the Battery Cool down the Battery Remove the material from the Driving Wheel Replace the Gear Box Recharge the Battery Replace the Motor Connect the wiring Reconnect the terminal Replace the Battery Cool down the Battery Remove the material from the Power Brush Recharge the Battery Replace the Motor Replace the Motor Cool down the Motor Re-connect the Terminal Replace the Battery Cool down the Battery Replace the Battery Recharge the Battery Empty the Dust Bin Re-Assemble the Power Brush Remove Foreign Substances Remove Foreign Substances 5-2

3 Make sure to turn off the power before servicing. Symptom Cause Solution Abnormal Noise No Power Keep backing up even though there is no obstacle in front of the unit. Auto Recharging does not work. Auto Charging does not work. The Robot Cleaner could not clean and rotates at one spot. The Robot Cleaner falls off the steps. The Robot Cleaner does not go straight but goes around. The set time does not keep time. The remote controller does not work The Impeller is full with foreign substances The Impeller nut is loose. Foreign substances are stuck in the Drum Brush. Foreign substances are stuck in the Suction Motor. The Drum Motor Gear is worn down. The Battery Fuse is blown out. Due to the battery overheating, the overheat protect device is triggered. The Battery Cell is cut. Defective Power Switch Contact The Battery Wire is cut. The Bumper Switch is got stuck up being pressed down. The Cliff does not operate properly. The Fence is defective. When there are obstacles within 1.5 meter around the Charger. When the Robot Cleaner does not start cleaning from the Charger When moving the Robot Cleaner away from the Charger and having it start cleaning When the Infra Red Ray of the Robot Cleaner is defective When the voltage at the Charger Terminal is not normal When the Infra Red Ray of the Robot Cleaner is defective When the Signal Receiving of the Robot Cleaner is defective When the Obstacle is defective When the PBA MAIN is defective When the Cliff is defective The Cliff does not detect the steps due to footwears or other obstacles. 5-3 Remove the foreign substances Fasten the Impeller nut Remove the foreign substances Remove the foreign substances Replace the Drum Motor Gear Box. Replace the Battery. Cool down the Battery. Replace the Battery. Replace the Power Switch Reconnect the Battery Wire. Remove the foreign substances on the Bumper or adjust the Bumper Spring Remove the foreign substances on the Window. Check if the connector is properly connected or replace the Cliff. Replace ASS Y FRONT HALL Move the Charger to the area with no obstacles around the Charger. Put the Robot Cleaner on the Charger and have it start cleaning from the Charger. Put the Robot Cleaner on the Charger and have it start cleaning from the Charger. Replace PBA SMPS Check the Charger Connector or Replace ASS Y SMPS Replace PBA ADAPTOR Replace PBA REMOTE Replace the Obstacle Replace the Cliff Remove the obstacles When there is no Virtual Guard or Fence Tape Install Virtual Guard or attach Fence Tape When the Forward Calibration is defective When the Wheel Motor Encoder is defective When the PBA MAIN is defective When the initial time setting is not done Defective PBA MAIN Defective Timer Battery The Remote Controller battery got drained The Remote Controller Module is defective Replace the Wheel Motor Set its time Replace Battery Replace PBA FRONT RECIVER Replace PBA MID RECIVER

4 5-3. Test Mode How to activate Test Mode 1. How to enter the Test Mode 1 Switch on the Power Switch. 2 Remove the Dust Bin. Dust Bin Eject (PUSH) Button Dust Outlet 3 Press the Bumper and press the Start/Stop button for 3 seconds. Dust Bin 2. Test starts ( Test Method and Diagnosis Refer to Page 5~6) 1 Press the Mode button and select the cleaning mode you want (select the Cleaning Mode) 2 Press the Timer/Daily or Timer button and select a Test Mode to check. 3 Take a necessary measure according to the diagnosis and decide whether it has problems based on the Display Panel Mode Display (Cleaning Mode) Check (Timer Cleaning) Name Diagnosis Diagnostic Code (Diagnosis Criteria) 5-4

5 Each Location Dust Outlet Control Button Status Display Window Camera LS Virtual Guard L2 Virtual Guard RS Virtual Guard Obstacle : 7 ea in total (RS, R2, R1, C, L1, L2, LS) Front R2 R1 L1 C Remote Controller Receiver Bumper Dust Bin Eject Buton Dust Bin Dust Outlet Remote Controller Receiver Side Cliff Driving Wheel Charger Pin Cliff Battery Cover Power Brush Charger Pin Roller Power Brush Cover Power Switch Driving Wheel Cliff Bottom 5-5

6 Left Signal Center Signal Power Lamp Charger Lamp Charger Terminal Remote Controller Holder Ventilation Outlet Hook Right Signal Charger Mode Lamp Distance Main Body Sensing Signal Mode/Power Button Distance Control Switch Main Body Sensing Signal Main Body Sensing Signal A Type Mode Lamp Mode Switch / IR Receiver IR Transmitter IR Receiver B Type Virtual Guard 5-6

7 Failure Criteria Mode Display (Cleaning Mode) Check 1 (On/Off Type) Auto Cleaning Mode Selection Name Left Bumper Right Bumper Left Lifted-up Right Lifted-up Dust Bin Remote Controller Receiver Gyro Docking Detection Charging Detection Diagnosis When the Left Bumper is not pressed When the Left Bumper is pressed When the Right Bumper is not pressed When the Right Bumper is pressed When the Left Driving Wheel is put on the floor When the Left Driving Wheel is lifted up higher than 30cm When the Right Driving Wheel is put on the floor When the Right Driving Wheel is lifted up higher than 30cm When the Dust Bin is removed When the Dust Bin is assembled When the Remote Controller buttons are not pressed When the Remote Controller buttons are pressed The initial value 50 will be displayed and be increased by 1 degree When the unit is not attached to the Charger When the unit is attached to the Charger Not Normal (in 1 sec after being attached to the Charger) Normal (in 1 sec after being attached to the Charger) Diagnostic Code (Diagnosis Criteria) There are no, and sensor checking codes. 5-7

8 Mode Display (Cleaning Mode) Selection Name Diagnosis Diagnostic Code (Diagnosis Criteria) Left Side Obstacle (LS) Distance Value (Display ~ ) Left Obstacle (L2) Distance Value (Display ~ ) Left Obstacle (L1) When there is no obstacle, the Distance Value (Display ~ ) Check 2 (Obstacle ) Spot Cleaning Mode Center Obstacle (C1) Right Obstacle (R1) Right Obstacle (R2) display shows 0 and the number increases as it gets closer to obstacles. Distance Value (Display ~ ) Distance Value (Display ~ ) Distance Value (Display ~ ) Right Side Obstacle (RS) Distance Value (Display ~ ) Left Cliff When the unit put on the floor When the unit is lifted up higher than 5cm Center Cliff When the unit put on the floor When the unit is lifted up higher than 5cm Right Cliff When the unit put on the floor When the unit is lifted up higher than 5cm 5-8

9 Mode Display (Cleaning Mode) Check while shaking the Cleaner sideways in front of it. Check 4 (Charger) Displaying Repeat Cleaning Mode. Virtual Guard Red LED Display Status Check 5 (Virtual Guard) Displaying Repeat Cleaning Mode. Mode Display (Cleaning Mode) Check 6 (Motor & Encoder, Manual Cleaning Mode) Caution : Because the motor is rotating, lift the wheels off the floor. Selection Selection Name Front Left Front Right Rear Right Rear Left Left Right Left / Right at the same time Left / Right at the same time Name Left Wheel Motor Right Wheel Motor Power Brush Motor Suction Motor Side Rotating Brush Motor Diagnosis No Signal Received Left Signal Detected Right Signal Detected Center Signal Detected No Signal Received Left Signal Detected Right Signal Detected Center Signal Detected No Signal Received Left Signal Detected Right Signal Detected Center Signal Detected No Signal Received Left Signal Detected Right Signal Detected Center Signal Detected Signal Detected Signal Detected Signal Detected No Signal Detected Diagnosis When the Motor rotates clockwise When the Motor rotates counter clockwise When the Motor rotates clockwise When the Motor rotates counter clockwise When the Motor is rotating When the Motor is defective Normal : There are motor rotating sounds. Defect : There are no motor rotating sounds. When both of the Motors are rotating at the same time When both of the Motors are not rotating When only the left Motor is rotating When only the right Motor is rotating Diagnostic Code (Diagnosis Criteria) Diagnostic Code (Diagnosis Criteria) RPM Increasing RPM Decreasing RPM Increasing RPM Decreasing RPM Increasing There is no sensor checking code. 5-9

10 5-4. PCB & Solutions When Battery does not get charged Check Charger Make sure to switch off the Power Switch before replacing parts. Power Supply to Charger Voltage at Charge Terminal Before Charging : 4V~5V During Charging : 21V~22V Normal Disassemble Charger Fuse is in good condition? Replace Fuse Replace PBA-ADAPTOR Check Battery Make sure to switch off the Power Switch before replacing parts. Charge Battery 1 Hr Charging Remove Battery from Main Body Read voltage at Battery Terminal Voltage at Battery Terminal : Over 12V Replace Battery Replace PBA-MAIN 5-10

11 Suction Motor Rotating Defect Make sure to switch off the Power Switch before replacing parts. Read voltage at Battery Terminal Charge the battery for an hour Connect Q4 #2 and #3 Terminals Replace Battery Suction Motor operates. Replace Suction Motor Separate the Q4 #2 and #3 terminals. Connect Q30 #1 and #2 terminals. Suction Motor operates. Defective Q4 or Defective Pattern (Replace Q4) Replace PBA MAIN 5-11

12 Brush Motor Rotating Defect Make sure to switch off the Power Switch before replacing parts. Read voltage at Battery Terminal Charge the battery for an hour Connect Q5 #3 and #5 Terminals Connect Q6 #1 and #5 Terminals Replace Battery Power Brush Motor operates. Replace Power Brush Motor Replace PBA MAIN 5-12

13 Side Brush Motor Rotating Defect Make sure to switch off the Power Switch before replacing parts. Read voltage at Battery Terminal Charge the battery for an hour Connect Q2 #2and #3 Terminals Replace Battery Is the Side Rotating Brush Morot rotating? Replace the Side Rotating Brush Motor Disconnect Q2 #2and #3 Terminals Connect Q23 #1and #3 Terminals Is the Side Rotating Brush Morot rotating? Defective Q2 or Defective Pattern (Replace Q2) Replace PBA MAIN 5-13

14 Wheel Motor Rotating Defect Make sure to switch off the Power Switch before replacing parts. Read voltage at Battery Terminal Charge the battery for an hour Separate the Main Body Separate the Connector of the Driving Wheel Motor Replace Battery Read the continuity between Connector #1 and #6. Value of Resistance : 0Ω? Replace the Driving Wheel Motor Replace PBA MAIN 5-14

15 Charger Docking Problem Make sure to switch off the Power Switch before replacing parts. Power Supply to Charger Voltage at Charge Terminal Before Charging :4~5V During Charging :21~22V Replace PBA ADAPTOR Charge Battery 1 Hr Charging With the Test Mode function, check the Infra Red signal of the Charger. The Infra Red signal of the Charger is normal Replace PBA ADAPTOR Replace PBA MAIN 5-15