Service Manual
Contents
1. Replace a heater Solution 1 2 1 7 Heater dismantle Reference 2 Assembly is in reverse dismantle Heater should be checked resistance for inferiority 1 1 1 Temp doesn t increase Power Relay Malfunction 1 Press the Start Button to operate the unit Measure Voltage of Output terminal using of the multi meter LA gt If Voltage doesn t measure it is a malfunction Check point Replace the Relay Solution 1 2 1 5 Power relay Dismantle Reference 2 Assembly is in reverse dismantle 1 1 1 Temp doesn t increase Heater SSR Malfunction 1 Set the SV value higher than PV Press the Start Button 2 Check the HEAT LED is lightning on Display No Flickering Lightning Check point 3 Check Terminal Resistance using of the Multi meter Resistance MODE gt If resistance doesn t measure it is a malfunction Replace the Heater SSR Solution 1 2 1 5 Solid state relay Dismantle Reference 2 Assembly is in reverse dismantle Temperature 1 1 1 Temp doesn t increase Main control board 1 Set the SV value higher than PV Press the Start Button 2 Check the HEAT LED is lightning on Display No Flickering Lightning Check point 3 Check Heater connector Voltage of PCB using of the Multi meter AC MODE gt If Voltage doesn t measure it is a malfunction Replace the PCB Solution 1 2 1 5 Main control board Dismantle Reference 2 Assembl2. test pushing all buttons one by one gt If all buttons works good while there is some space on installing the Display board this means assembly error Replace the Display board Solution 1 Refer to 2 1 5 Main control board disassembly 2 The assembly is reverse order of disjointing 14 DISPLAY 1 3 2 Display error Main control board error 1 Disassemble the Harness on the Display board and reassemble correctly 2 Replace a new display board Check gt If you still notice display error the Main PCB is out of order Replace the Display board Solution 1 Refer to 2 1 5 Main control board disassembly 2 The assembly is reverse order of disjointing DISPLAY 1 3 2 Display error Temp sensor error 1 Replace a new Temp Sensor Check gt If display is OK the previous Sensor is out of order Replace a new Temp sensor Solution 1 Refer to 2 1 7 Temp sensor disassembly 2 The assembly is reverse order of disjointing DISPLAY 1 3 2 Display error Temp sensor contact error ec Fasten the blots of Temp Sensor on the Main control board Solution 1 Refer to 2 1 5 Main control board disassembly 2 Fasten Temp Sensor terminal on the Main control board OT 3 The assembly is reverse order of disjointing 1 O T LED is ON with buzzer while operating the unit Check 2 Check whether Over temp limit is set by 15 higher than SV 3 Check if there is not enough water in
3. Cause BIAS Value modification edon 1 Measure temp of the inner chamber using of A exterior temp detector installed in the middle eck poin i gt If displayed temp and the temp detector value are different Modify BIAS Value BIAS Value Modification 1 Install A exterior temp detector verified inner chamber 2 After setting the temp value Wait for the temp that is stabilized About 2hours over Solution 3 Measure the temp detector installed inner chamber 4 Press Temp Button six times to modify the Bias value 5 Modify the BIAS value to set the temp is equal to the temp detector And then press the ENTER Button to restore the value 6 Modify the temp value 1 1 3 Variation Cause Measurement Inferiority 1 Check the temp detector position Check point 7 gt If the temp detector is not in the middle position It s a malfunction Measuring position change Solution 1 The sensor of temp detector positioned in the middle of inner chamber 2 Fixture and the sensor of temp detector should be intervals minimum 15mm Standard Test Guide Reference Temperature 1 1 4 Temp trembling Temp Sensor connection inferiority 1 Check the temp sensor terminal bolts of Main control board gt If bolts are loosen it cause disconnection inferiority ff Check point gt 8 Eoo A SNA ae 7 SHEePase Tighten the temp sensor terminal bolts of Main control board 1 2 1 5 Main control board Dismantle Reference
4. control board disassembly Solution Replace a new Motor 2 Refer to 2 1 4 Motor disassembly 3 The assembly is reverse order of disjointing Shaking 1 4 1 RPM control error Main control board error 1 Replace a new Main control board to find the cause gt If RPM control is OK the old Main control board is error Check Replace a new Main control board Solution 1 Refer to 2 1 5 Main control board disassembly 2 The assembly is reverse order of disjointing 18 1 5 Current leakage e ia Ta a ee LE i eS AS Step 1 Check out fuses gt If fuses are out of order current leakage happens oy Se git aos a SSK N Step 2 Taking out wiring of heater Then measure resistance between terminal and surface of aren 2S wD caer Page heater with resistance meter Se Vy NN aS Check i 2 gt f resistance measures current leakage happens A OE i Replace Heater Solution 1 Refer to 2 1 7 Heater disassemble 2 Assemble vice versa Resistance of heating element must be checked with resistance meter before assembling Classification Symptom circuit breaker activates Insulation of wire Step 1 Check out fuses Shack Step 2 Replace fuses if it is out of order ec Step 3 Measure resistance between main plug and earth resistance meter gt If resistance measures insulation of wire is out of order Solution Replace wires 19 2 Dismantle amp Inspection 2 1 Di
5. parts which are involved in the Switch upper amp bottom from the panel 4 Assembly is in reverse dismantle 1 2 1 No Power Main control board Malfunction 1 Check Voltage from output terminal of AC in Main control board gt If Voltage is measured without Power Main control board Malfunction Check point Replace the Main control board Solution 1 2 1 5 Main control board Dismantle Reference 2 Assembly is in reverse dismantle 1 2 1 No Power Laboratory power Malfunction 1 Check the electricity of socket with multi meter Check point gt If power doesn t measure or value is lower or higher Laboratory power Malfunction Make Power of Laboratory stabilization 10 1 2 1 No Power Power code line disconnection inferiority 1 Check between Fuse holder and Soldering part of power code line Check point ar gt If Soldering part is separated disconnection inferiority Replace the Power Code line 1 2 1 1 Fuse dismantle Reference Solution 2 2 1 5 Power switch dismantle Reference 3 After soldering between Main cord and fuse holder Tube it with Shirking tube 4 Assembly is in reverse dismantle Power 1 2 2 Power shut off during operation Main control board Malfunction 1 Turn on the Main power Switch 2 Set the SV value 50 C Press the Start Button to operate 3 Check AC Voltage from heater output terminal in Main control board Check point gt If Voltage is not measured
6. the Bath 1 Set Over temp limit higher than SV by 15 Solution 2 Fill water in the Bath DISPLAY 1 3 3 O T error Main control board error Transformer error 1 O T still alarms even Over temp limit set is 15 higher than SV Replace a new Main control board Replace a new Transformer Solution 1 Refer to 2 1 5 Main control board disassembly 2 Refer to 2 1 5 Transformer disassembly 3 The assembly is reverse order of disjointing 16 1 4 Shaking Shaking 1 4 1 Noise while shaking Tray balance error 1 Remove Tray from the bath Check 2 Check Tray balance Remove Tray from bath make it balance Solution 1 Refer to 2 1 6 Tray disassembly 2 The assembly is reverse order of disjointing Shaking 1 4 1 Noise while shaking Crank Joint assembly error Roller wear 1 Check Crank bolt are loosen 2 Remove Tray Check 3 Check Roller wear Check Crank joint parts if found any loosen fasten again 1 Refer to 2 1 2 Shaking unit disassembly Solution When Roller replacement is needed replace 4 set all together 2 Refer to 2 1 6 Tray disassembly 3 The assembly is reverse order of disjointing 7 Shaking 1 4 2 Shaking does not work Main control board Motor error abe 1 Replace a new Main control board to check the cause ec 2 Check after replacing Main control board Replace a new Main control board 1 Refer to 2 1 5 Main
7. Aa S 2008 03 07 Service Manual Model BS 06 11 21 31 JEO TECH F MOL INDEX 1 Service 1 1 Temperature 1 1 1 Temp doesn t increase 1 1 2 Temp trembling 1 1 3 Variation Cause 1 1 4 Temp keeps rising 1 2 Power 1 2 1 No Power 1 2 2 Power shut off during operation 1 2 3 Power shut off after turning on 1 3 DISPLAY 1 3 1 Push button error 1 3 2 Display error 1 3 3 O T error 1 4 Shaking 1 4 1 Noise while shaking 1 4 2 Shaking doe does not work 1 4 3 RPM control error 1 5 Current leakage 1 5 1 Circuit breaker activates 2 Dismantle and Inspection 2 1 Dismantle 2 1 1 Fuse Drain valve Dismantle 2 1 2 Shaking Unit Dismantle 2 1 3 Amplitude Modification 2 1 4 Timing belt Motor disassembly 2 1 5 Main control board Start Stop switch Temperature regulator Power switch Power relay Transformer Solid state relay Noise filter disassembly 2 1 6 Tray disassembly Spring wire rack Spring wire rack Height adjustment 2 1 7 Bath disassemble Heater Temp sensor Temperature regulator disassemble 2 1 8 Tools 1 Service 1 1 Temperature 1 1 1 Temp doesn t increase Heater malfunction 1 After setting 50 C and then press Start Button to operate the unit 2 Check the Heater temp itself Be careful heater is very hot 3 Measure resistance checking positive terminal of heater using of the multi meter Check point gt If resistance doesn t measure It is a malfunction
8. Main control board Malfunction 4 Check DC Voltage from Relay output terminal in Main control board gt If Voltage is not measured Main control board Malfunction Replace the Main control board Solution 1 2 1 5 Main control board Dismantle Reference 2 Assembly is in reverse dismantle 1 Check the fuse and then replace tt 2 Check an electric current both ground terminal and Wire using of the multi meter Check the polar terminal of Wiring Check point 3 Check Heater leakage gt 1 If fuse is down replace it If heater is not leakage and 2 If current Ground terminal and wire doesn t apply current during measurement It s Over current Over current is possible but check shot circuit for all wires and electric parts Power 1 2 2 Power shut off during operation Electric capacity over in Multi outlet 1 Check an electric outlet capacity connected the unit Check point 2 Check total units connected the multi electric outlet gt If total units connected the multi electric outlet is over than the outlet capacity multi electric outlet malfunction 1 2 2 Power shut off after turning on Heater leakage 1 Check the fuse 2 Separate the heater terminal and wire Check point l 3 Measure Resistance both the heater terminal and heater exterior gt If fuse is down and heater resistance is measured Heater leakage Replace the heater Solution 1 2 1 7 Heater Dismantle Referen
9. ce 2 Assembly is in reverse dismantle Heater should be checked resistance for inferiority 1 2 2 Power shut off during operation Wiring insulation malfunction 1 Check the fuse 2 If fuse is down replace it Check point 3 Check Resistance both ground wire and Main plug using of the multi meter gt If resistance is measured it is short circuit Replace the wire Solution 1 2 1 1 Fuse Dismantle Reference 2 Assembly is in reverse dismantle Power 1 2 3 Power shut off after turning on Electric capacity over in Multi outlet 1 Check the fuse 2 Check an electric outlet capacity connected the unit Check point 3 Check total units connected the multi electric outlet gt If total units connected the multi electric outlet is over than the outlet capacity multi electric outlet malfunction Use the multi electric outlet under capacity 13 1 3 DISPLAY BOARD DISPLAY 1 3 1 Push buttons error Display board error abe 1 Disconnect Display board from the panel test pushing all buttons one by one ec gt If you don t detect any reaction from button the Display board is out of order Replace the Display board Solution 1 Refer to 2 1 5 Main control board disassembly 2 The assembly is reverse order of disjointing DISPLAY 1 3 1 Push buttons error Assembly error on Display board 1 Check Display board is installed firmly Check 2 Disconnect Display board from the panel
10. ght side to separate control box loosened 2 1 2 Refer to Shaking Unit disassemble 2 1 8 Tools From left Long nose nipper 17mm spanner 16mm spanner 14mm spanner M5 5 vox screw driver M7 vox screw driver screw driver M4 L wrench 29
11. picture of Zoom out of Fly wheel Dismantle works make progress fixed Crank wheel using of M4 From left M5 wrench bolt M5 Spring wrench washer Crank bolt Crank load M5 Spring washer 5 If using amplitude 30mm Fix itasa_ 6 If using amplitude 25mm Fix itasa_ 7 If using amplitude 35mm Fix it as a picture Black circle picture Black circle picture Black circle 93 2 1 4 Timing belt amp Motor disassembly 1 You can proceed after 2 1 2 2 Release M4 bolt 4ea by driver Shaking Unit disassembly 5 When reassembling Timing 6 you can remove as above belt proper tension should be kept 5mm when pushing fingers 3 Check all parts M4 blot M4 spring washer M4 flat washer 7 Release M4 bolt 4ea to remove Motor 94 4 Remove Timing belt 8 The pic shows the opposite side 2 1 5 Main control board Start Stop switch Temperature regulator Power switch Power relay Transformer Solid state relay Noise filter disassembly 1 You can proceed after 2 1 2 2 You can see the electric 3 Disconnect all wires to Main control 4 Release M3 bolt 4ea to remove Shaking Unit disassembly arrangement parts board Main control board 5 Release M4 bolt 4ea by driver 6 As shown above open it 7 Release M3 nut x 2ea by 5 5mm 8 Remove Power switch by using vox driver to separate Start Stop driver switch and Temperat
12. smantle 2 1 1 Fuse Drain valve Dismantle 1 Remove the unit packing 2 Fuse holder is positioned in the left lower part on the unit back side 5 When turning Drain valve up to Anti 6 Complete separation When Clock wise Drain valve is assembling a rubber ring should be separated put together 3 Turn the Fuse hold to Anti clock wise using of Driver Fuse is separated 4 Drain valve is positioned in the right lower part on the unit back side 2 1 2 Shaking Unit Dismantle 1 Open the Cover as upper picture 5 Loosen M4 4ea bolts using of Driver 2 Crank bolt is shown on the right 3 Upper left side is a picture of Crank inner side of Bath Turn the bolt to Anti bolt separation Remove the grey pipe clock to separate shown the right side 6 Dismantle the Side cover 7 Remove a wire connecting to the Motor from a Controller 2 4 The right side panel indicated a black circle is a Side cover E As e We Sy 8 A picture for removing the Motor wire 9 Remove 6EA bolt fixed the Shaking 10 Loosen bolts for upper part as 11 A picture for separating the unit using of driver upper picture Caution Heavy Shaking unit M4 bolt M4 Spring Washer M4 Washer 22 2 1 3 Amplitude Modification 1 2 1 2 After Shaking Unit 2 Loosen M5 Wrench bolt which is 3 Separate parts as upper picture 4 A
13. solution 2 Tighten the temp sensor terminal bolts of Main control board 3 Assembly is in reverse dismanile 1 1 4 Temp keeps rising Main control board Malfunction 1 Replace the Main control board to check the symptom Check point en S gt If Variation is not caused it is Main control board Malfunction Replace the Main control board Solution 1 2 1 5 Main control board Dismantle Reference 2 Assembly is in reverse dismantle Temperature 1 1 4 Temp keeps rising Heat SSR Solid state relay Malfunction 1 Separate the Input SSR of Harness Check point 2 Measure resistance checking SSR output using of the multi meter Resistance MODE gt If resistance measure it is SSR malfunction Replace the SSR Solid state relay Solution 1 2 1 5 Solid state relay Dismantle Reference 2 Assembly is in reverse dismantle 1 2 Power 1 Check the Fuse using of the multi meter Check point gt If Resistance is not measured Fuse disconnection Replace the Fuse Solution 1 2 1 1 Fuse Dismantle Reference 2 Assembly is in reverse dismantle Power 1 2 1 No Power Switch Malfunction 1 Measure output terminals No 2 5 When turning on the Main power Check point gt If Power is not measured Switch Malfunction Replace the Switch 1 2 1 5 Power switch Dismantle Reference Solution 2 Separate Switch wiring When assembling location is a caution 3 Pull out the
14. ure regulator 9 After disconnecting all wires Release M4 bolt 2ea to remove Power relay 13 Now you can check Fuse hold 10 Release M4 bolt 2ea to remove 11 Release M4 bolt 2ea to remove Transformer Solid state relay after disconnecting all wires 14 when reassembling keep the initial arrangement 96 12 Release M4 bolt 2ea and disconnect all wires to remove Noise filter 2 1 6 Tray disassemble and Spring wire rack adjust 1 Open the lid 2 Screw of crank can be seen at the 4 Separate tray carefully right of the bath 5 Tray separation completion Note Roller can be 7 Take out Arrow 2 1 with screw diver or by 8 Reposition a lay of spring wire rack replaced if it is worn out with hand A layer of spring wire rack 2 2 can be and fasten 4 of Arrows crew driver separated when 4 of Arrows are taken out 27 2 1 7 Bath disassemble Be careful of damage of Housing cover Heater Temp sensor Temperature regulator disassemble 1 Separate tray Refer to 2 1 6 4 Loose 2 of screw at the left side Spring wire rack disassemble Housing coverS can be separated 5 Disassemble Shaking unit and 6 Heater can be separated to take out 7 Temp sensor can be separated 8 Temperature regulator can be electric board Take out 4 screws at only nut 2 of nut when nut is loosen separated when nut and screws are the ri
15. y is in reverse dismantle 1 1 1 Temp doesn t increase Wire from heating parts disconnection 1 Check the wire from Heater to SSR Check point 2 Check the end terminal connection of the wire gt If connection is not good it is disconnection If it is disconnection replace the wire Solution 1 Replace the wire 2 Assembly is in reverse dismantle Temperature 1 1 2 Temp trembling Main control board Malfunction 1 Operate the unit after changing Set Temperature Check point gt If it Keeps trembling Main control board Malfunction Replace the Main control board Solution 1 2 1 5 Main control board Dismantle Reference 2 Assembly is in reverse dismanile 1 1 2 Temp trembling Temp Sensor connection inferiority 1 Check the temp sensor terminal bolts of PCB Check point l l E gt If bolts are loosen it cause disconnection inferiority Tighten the temp sensor terminal bolts of Main control board Solution 1 2 1 5 Main control board dismantle Reference 2 Tighten the temp sensor terminal bolts of Main control board OT 3 Assembly is in reverse dismantle 1 1 3 Variation Cause Main control board Malfunction 1 Replace the Main control board to check the situation Check point rr SE gt If Variation is not caused it is PCB Malfunction Replace the Main control board Solution 1 2 1 5 Main control board Dismantle Reference 2 Assembly is in reverse dismantle 1 1 3 Variation
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