Fajita Service Manual
Contents
1. Caution INDUCS Ltd If other components used no liability is accepted Caution The mains cable must be disconnected 7 1 To open the induction unit e Turn the induction unit over upside down e Remove M4x8 screws e Turn induction unit back to normal position e Lift cover tip to the right side stand it on its side e Remove coil carrier remove the 2 stop nuts on the left e Remove M4 screws e Remove screws Al and A2 e Turn away coil carrier at the left Service manual Fajita Heater doc 14 72 Repair of defected parts Repair of defected parts Power board control board etc and of whole units may only be affected by INDUCS Ltd Therefore check and replace only parts described in this service manual In case you should repair parts please describe exactly the faults and give information about the history of the unit for example new installation changements done next to the induction cooker or to other units supplied by the same network In order to save transport charges do not return defective parts such as temperature sensors rectifier transistor modules and interrupter s Such parts can be disposed correctly on place Service manual Fajita Heater doc 7 3 15 Initialisation of the induction unit by PC Laptop The adjustments of pan detection and performance can be done by means of the hyperterminal program You will find exact information for the handling of the hyperte2. chart to fault finding 0 0 0 nn a 12 7 Exchange of spare parts 13 717 Wo openthe induction na 13 7 2 Repair of spare Parts nn una tete er AA A Ra AAA ai 14 7 3 Initialisation of the induction unit by PC Laptop aaa 15 7 4 Change of the parameters snanar nenne 15 7 5 Parameters for mains current and pan detector 18 8 IR l ferface e severe itta egeo sca ouk ee ia et Rc RV e VE QR ew ERA ES re V aede viUa Vie 19 8 1 Build up of IR communication eene enne enne ener 19 Service manual Fajita Heater doc 1 Safety 1 1 Description of danger signs This symbol identifies the safety information which may cause danger personal injury for people at non observance of proper operation This dangerous voltage warning symbol indicates a risk of electric shock and hazards from dangerous voltage Indicates a hazard or unsafe practice which CAUTION could result in minor personal injury or property damage AN Electromagnetic field Information signs mounted directly on the cooker must be observed at all times and kept in a fully legible condition 1 2 Qualification and training of personnel The staff for assembly installation commissioning operation and maintenance must have the appropriate qualification The field of responsibility competence
3. 4 3 2 Transistor IGBT The IGBT Insulated Gate Bipolar Transistor is fixed on the circuit board with three solder connections The IGBT Transistor has as a supplementary protection an integrated recovery diode At first we have to measure the on state voltage of this diode The forward voltage of this diode should be about 0 5V Service manual Fajita Heater doc In case the recovery diode shows a short circuit or an interruption the IGBT transistor is defective and has to be exchanged ie ND NC E wa Service manual Fajita Heater doc 5 Maintenance Service Maintenance work may only be done by authorized personnel Before starting the maintenance work the power supply must be turned off and the appliance must have cooled down The following maintenance works need to be carried out periodically The longer and more frequently the cooker is used the more often the maintenance works have to be done Every cooker should be checked at least once a year Fan The proper function of the cooker can only be guaranteed if the electronic unit is kept at normal working temperature e The air inlet and outlet slots must not be blocked or covered e The air filter must not be blocked by dirt or grease e The airducts must be free of dirt e The air must circulate freely through the heat sink e The fan is properly mounted e The heat sinks are properly mounted Check Induction coil e Mecha
4. Defaults Apply These adjustments will be saved under the access name IR2400 ht and this shortcut could be used every time using Inducs service interface Service manual Fajita Heater doc
5. SERVICE MANUAL INDUCTION COOKER BASE LINE FAJITA HEATER SH BA 3500 FH Service manual Fajita Heater doc CONTENT 1 Sabet A RA IA 2 1 1 Description of danger Signs nn nn ananas nanna nn 2 1 2 Qualification and training of personnel 2 1 3 Safety prescriptions for installation and service aaa 3 1 4 Unauthorized reconstruction and use of spare parts nee nn 3 1 5 Improper operating methods nenne 3 2 Technical information perpe CET 4 3 BuUnctlonllg EE Sa eE ANA Eva A en A 4 3 1 Adjusting the Temperature Time a aaa 4 3 2 Check of tli terriperatute 9 rne eine ta 5 3 3 Overload current 22 ae aa a anna naaa nennen eis 5 LM UU E 6 4 Pan material for induction COOKETS nn near nn ananas mnn 6 42 Rani sia ai sh pont Ia ka ba b b ERREUR be 6 4 35 Testot the componenits a A tee Neid 7 4 3 1 Rectifier E S 7 4 32 Transistor GBT e nitet AE EEE ERE EN EHE EEOAE ERSS 7 5 Maintenad nce ServICQE uec asdenecosgoevant oak alma di oh dad cV ra Ve pA Tiens RUE Teva uaa 9 6 Fault fin dingin CREE Pega aa sa SEN PATE TREE ene e EE aS 10 Generally ite nte uU e HEN 10 6 2 CEO MESSAGES nd ree E Deere reti ete Ee e pedet EA 10 6 3 Flow
6. and supervision of the staff must be defined and controlled Service manual Fajita Heater doc 1 3 Safety prescriptions for installation and service The operating personnel must make sure that installation and service as well as all inspection is done by authorized and qualified personnel This personnel must have read very carefully the Instructions for Use in order to meet the requirements For installation service maintenance repair and overhaul of the induction cookers the personnel must be specially qualified and must have attended a special training authorized by the manufacturer In principle such work at induction appliances must only be carried out when it is under no electrical tension The cookers must be switched off and disconnected from the electric connection The installation of safety and protection must be re installed after finishing the work 1 4 Unauthorized reconstruction and use of spare parts Reconstruction of the cooker or changes to the cooker is not allowed Contact the manufacturer if you intend to do any changes to the cooker To guarantee safety use genuine spare parts and accessories authorized by the manufacturer The use of other components will cancel any liability for the resulting consequences 1 5 Improper operating methods The operating reliability of the cookers can only be guaranteed with appropriate use of the cooker The limit values may be exceeded on no account Service manua
7. ave linecurrent limit 6 Set the pan detector see pan detector parameters in chapter 8 2 T increase pan detector t decrease pan detector The following message appears on the monitor pan detection limit 7 Save the pan detector with the key 2 On the console appears the message please confirm Press the key again The following message appears on the monitor save pan detection limit 8 By input the mode of adjustment will be left The following message appears on the monitor see you again 9 The mode of adjustment has a time out function After 10 minutes the mode of adjustment will be left automatically The adjustments are now finished and it is not possible to make any other adjustments Otherwise you have to start at the beginning Service manual Fajita Heater doc 217 Different information about the unit is shown in the adjusting mode The following parameters can be read Output on the hvperterminal program KK 62 C Coil temperature 14 B 11 C F 20080Hz KK 62 C Coil temperature 14 B 11 C F 20080Hz KK 62 C Coil temperature 14 B 11 C E21 F 20080Hz KK 62 C Coil temperature 14 B 11 C E21 F 20080Hz Meaning Heat sink Error message temperature 62 Coil temperature 14 B 11 C E21 4 F 20080Hz Board temperature Frequency Coil Temperature in
8. f 2 The induction unit continues working gt The induction unit does not heat Order of error message for error code 1 8 The indicator lamp flashes for an interval of 0 6 sec The following short flashes need to be counted This gives information about the error corresponding to the above mentioned code system Service manual Fajita Heater doc 12 6 3 Flow chart to fault finding Unit does not work Check mains supply Replace fuse Yes Short circuit connection Poti Check connection Poti Check fuse of installation and mains supply Connection o k Replace LED Check mains Connect Replace plug and socket Unit power board Defect Defect Contact Check fuse Check electrician T10A rectifier Is there any LED indication Check electric voltage DC DN fuse Yes Error code in Is there any IR mode error code Check circuit board visually Utilize error code and go ahead accor ding to list Check wiring Check IGBT transistors It works It does not work Unit works Continuous test for Correct Replace power Replace power board about 10 min necessary board wiring Service manual Fajita Heater doc 2132 7 Exchange of spare parts All spare parts and accessories may only be Caution changed by authorized personnel In order to guarantee safety use only genuine spare parts and accessories from
9. l Fajita Heater doc 2 Technical information Modell SH BA3500 FH 208 V 1 Ph Wattage kW 3 5 Current A max 16 Power factor Cos p gt 0 95 Leakage current mA 4 Coil mm 160 Max tolerance of power supply Nominal voltage 6 10 96 Frequency 50 60 Hz Protection class IP X0 Min diameter of pans Approx 12 cm approx 4 7 Ambient temperature range stockage 20 to 70 0 to 160 F Ambient temperature range function 5 to 80 C 40 to 110 F Relative humidity of air stockage 10 to 90 96 Relative humidity of air function 30 to 90 96 3 Functioning 3 1 Adjusting the Temperature Time The required temperature and or time are adjusted with control knob e position 1 gt 600 F Adjustment position 2 gt Pan reheating e position 3 gt 350 Adjustment position 4 gt 250 F Adjustment e position 5 gt 35sec Timer Adjustment e position 6 gt 30sec Timer Adjustment e position 7 gt 25sec Timer Adjustment e position 8 gt 15sec Timer Adjustment e position 8 gt 10sec Timer Adjustment There is a possibility of end temperature control or time adjustment control Measure the elapsed time on the timer adjustment or temperature on temperature setting Both of the tests Service manual Fajita Heater doc are reliable for quality control Used cold pan must be in temperature range 10 C 50 F 40 104 F 3 2 Check of
10. nical fixing screws tightened e Coil adhesive mounting o k e Ferrite mounting o k e Copper coil mounting o k General check e Earth protection e Screwed connections e Cable insulation e Any kind of dirt or liquids that have entered the cooker must be cleaned out e Remove insects if present Service manual Fajita Heater doc 10 6 Fault finding 6 1 Generally Do not open the cooker while the power is connected Dangerous voltage Caution The induction cooker may only be serviced by authorized personnel Stop any work if the heating area Ceran Glass is broken The induction cooker must be switched off and the mains cable disconnected Do not touch any parts inside the cooker Before replacing a part check the wiring Give special attention to the following faults e Broken cables e Squeezed cables e Defective insolations of cables e Bad soldering joints You must not do any repair on the circuit boards The appropriate maintenance work should be carried out after each repair see Maintenance and Service 6 2 Error messages Number of Significance Measures to take flashing signals Error code 2 Unapropriate pan no a Use recomended pan possibility to reach wanted b Align pan to the heating area center temperature with pan c Control if the pan is deformed Pan misaligned from the center 3 Temperature heat sink Heat sink temperature too high
11. rminal program in chapter 9 IR interface IMPORTANT Pay special attention whether you receive feedback signal from the PC Laptop after every changement This will be the sign that the changement has been accepted 12345 Entry to the mode of adjustment password N Increase the mains current limit n Decrease the mains current limit A Save the limit of the mains current T Increment pan detection t Decrement pan detection Save pan detection Leave the mode of adjustment State software version 7 4 Change of the parameters Connect the RS232 connection cable to the PC Laptop and straighten the IR box to the left lower corner of the ceran glass 2 Start HT2400 see chapter 9 cooker must be set in the OFF position 3 By input of 12345 the mode of adjustment is started The following message appears on the hyperterminal program IR On WELCOME REPAIRMEN 4 Setthe limit of the mains current see mains current parameters in chapter 8 2 N increase the limit of the mains current n decrease the limit of the mains current The following message appears on the hyperterminal program linecurrent limit Service manual Fajita Heater doc 16 5 Save the limit of the mains current with the key On the console appears the message 6611 please confirm Press the key again The following message appears on the monitor s
12. tern Status message temperature of the coil Parameter raw value Service manual Fajita Heater doc 18 7 5 Parameters for mains current and pan detector 99600017 SH BA 3500 FH 208VAC IN 3 5kW Service manual Fajita Heater doc 19 8 IR Interface 8 1 Build up of IR communication To build up the IR communication you need the software Hyper Terminal which is usually already available in Windows under Start gt Program gt Accessories gt Hyperterminal Prior to the first use Hyperterminal should be configurated properly INDUCS service needs the following settings Connect the IR box and bring it into line to the IR sensor on the generator Start Hyperterminal and give an access name e g IR2400 ht Connection Description xl hb New Connection Enter a name and choose an icon for the connection Name JHT2400 1 Select the communication via COMI or where your IR box has been connected Ca ixi S HT2400 Enter details for the phone number that you want to dial Country region Switzerland 41 Area code Phone number Connect using z Cancel Service manual Fajita Heater doc 20 Select the following settings 2400 Bits sec 8 Databits no parity 1 Stop bit Hardware protocol COMI Properties 2x Port Settings Bits per second Data bits fe sf Parity oe JI Stop bits hn H Elow control Hardware o e Restore
13. the temperature Induction coil The temperature of the induction coil is checked by a temperature sensor If the coil is heated over the maximum temperature the heating process is stopped As soon as the coil has cooled down the Induction unit can be re started Turn the position of the kontrol knob on 0 and then on the required power level see chapter 7 2 Error Messages Power board The temperature of the heat sink is checked by a temperature sensor As soon as the heat sink is heated over 70 C 158 F a cooling fan is started If the temperature exceeds 90 C 194 F the unit will stop working and show error code E03 see chapter 7 2 The internal temperature of the unit is supervised as well As soon as the temperature exceeds 75 C 167 F the unit will stop working and show the error code E06 see chapter 7 2 3 3 Overload current protection When inappropriate pan material or magnetic objects are detected on the heating area the current in the induction coil may rise substantially In order to protect the power board the coil current is checked As soon as the current in the coil exceeds the tolerance the generator will cut out and there is no further active energy exchange The unit can be re started as soon as normal working conditions are reached Service manual Fajita Heater doc 4 Tests 4 1 Pan material for induction cookers When cooking with induction it is most important to use appropriate pan material The bot
14. tom of the pan is the element that closes the magnetic field generated by the induction coil We recommend customers only use appropriate pan material In order to find out whether the pan material is appropriate for induction use a magnet This has to stick to the bottom of the pan This test says nothing about the efficiency or the material structure of the pan it can be a bad induction pan 4 2 Fans With this test fans fans controller and wiring are controlled e Adjust setting 1 without pan Fajita 600 F The coil fan starts automaticaly e Place pan on the center of the heating area As soon as the pan is detected the second fan heatsink fan starts automaticaly e Remove pan from the heating area Heatsink fan stops Service manual Fajita Heater doc 4 3 Test of the components CAUTION The mains cable must be switched off 4 3 1 Rectifier The rectifier is fixed at the power board with four wires These rectifier connections have to be unsoldered for correct test results At first you have to measure the forward voltage between anode cathode by means of the multimeter please use only multimeters with diode check as an additional function The forward voltage for this diode is about 0 5V in the direction A C in the opposite direction there is no current flow In case one of the four diodes shows a short circuit or an interruption the rectifier is defective and has to be exchanged
15. wait Sana until the temperature has cooled down under 80 C 176 F e Check supply of cooling air perhaps blocked check function of fan f Check temperature of heat sink replace power circuit Service manual Fajita Heater doc 11 Number of flashing signals Significance Measures to take Error code 4 Coil Temperature too a Wait until the cooking surface cools E s high 7 down b Check coil sensor index value at 25 C 75 F approx 75 Ohm 6 Temperature inside the unit a Check whether the unit is next to a Teese mee too high source of heat as e g friteuse b Check whether hot air is taken in generator has no air exhaust system 8 Sensor error a Check coil sensor Balai ERR b Check heat sink sensor c Check board sensor 17 Coil sensor a Temperature of the cooking field too overtemperature high b Check coil sensor index value 75Ohm at 25 C 75 F 20 Power reduction generator a Check for heat sources around the inside temperature generator and remove them b Check air circulation 21 Heat sink sensor error a Contact Inducs AG b Exchange Power unit 24 Board temperatur sensor a Exchange CPU unit error 25 Coil sensor error a Check Coil sensor for short circuit or discontinuation index value 75Ohm at 25 C 75 F P The induction unit can only be restarted when the fault has been rectified turn power rotary knob of
Download Pdf Manuals
Related Search