Kitchen Equipment

RATIONAL OVEN SCC TROUBLESHOOTING AND ERROR CODE


  
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Gas Error Logger Burner Control 0 Indication of the last 14 gas-failures, generated by ignition box top) Gas Error Logger Burner Control 1 Indication of the last 14 gas-failures, generated by ignition box bottom) act: 0 2006-07-25 17:29:47 1: 30 2006-07-12 11:06:27 2: EGE 1005 ( Wildcards from 1-13 for additional gas failures. EGE 1005 is indicated in case there was no failure) Example under item 1 Failure 30 (wrong or no rev‘s of gas blower steam) occurred 12.07.2006 at 11.06:27 h. feedback signal from blower motor to ingition box missing; Indication of ignition box error messages (1-32 is shown to the operator as „Reset“): 1 Hot air or Steam no gas, gas valve or electrode defective 14 Hot air gas valve control, change ignition box 19 Hot air no  ame because  ame current is too low check burner setting,  ame current, ignition cable and plug 20 Hot air wrong or no rpm signal from gas blower check gas blower, power supply gas blower and control harness of gas blower 22 Hot air no  ame after 5 ignition sequences no gas, gas valve or electrode defective 24 Steam gas valve controll, change ignition box 29 Steam no  ame because  ame current is too low check burner setting,  ame current, ignition cable and plug 30 Steam wrong or no rpm signal from gas blower check gas blower, power supply gas blower and control harness of gas blower 32 Steam no  ame after 5 ignition sequences no gas, gas valve or electrode defective Possible failure in case of „Service 32“ 33, 36 Change ignition box 35 Check frequency of main 39 Hot air Check burner setting, ignition electrode and distance, and  ame current 40 Hot air Check ignition cable 42 Steam Check burner setting, ignition electrode and distance, and  ame current 43 Steam Check ignition cable Is shown on display „Change polarity“ 34 Change polarity of mains

Machine Exploded View PDF & Service Manual
 
Error CodeError DescriptionRemedy of Error
Service 10SC PumpDisplay can be cancelled by touch
Service 11CDS Sensorwater level ok - Electrode is working
Service 12CDS Sensor with out signalchecked the CDS sensor Blockage  or water pressure low
Service 13only hot air possiblesignal from level electrode to pcb
Service 14electrode water levelwater pressure slow
Service 15
.
Service 16eeprom versionpcb with old software version 
                                        Lates Rational Oven Error Code's
Error CodeError DescriptionRemedy of Error
Service 17EEprom Faultychanged new eeprom
Service 18Not in UsedNot Activated
Service 19Not in Used                         Not Activated                                                                       
Service 20Thermocouple B1 Cabinetthermocouple broken out of range
Service 21Micro Switch Clima plusmicro switch without function  humidity control
Service 22 not in usednot in used
Service 23SSR Steam Shor CircuitSSR changed

Error CodeError DescriptionRemedy of Error
Service 24SSR Steam Shor CircuitSSR changed
Service 25No Water Detection by FanClean Jet Pump Does Not Deliver Water
Service 26Drain Valve ClosedMicro Switch Drain Valve in Permanented Closed position 
Service 27Drain Valve Doesn't ClosedChecked the Micro Switch in Drain Valve
Service 28Steam generator above
180°C
temperature at thermocouple steam generator B5
Service 29PCB temperature.Temperature PCB Above 85°C
Service 30Humidity controlHumidity control out of function

Error CodeError DescriptionRemedy of Error
Service 31Core Probe SensorCore probe sensor defective
Service 32Ignition box0: Ignition box top,1: Ignition box bottom,
2: Both Ignition boxes
Service 33Ignition box                          0: Ignition box top,1: Ignition box bottom,
2: Both Ignition boxes                                                          
Service 34No Bus Signal1: I/O PCB - 2: Motor bottom,4: Motor top -
8: Ignition module top,16: Ignition module bottom
Service 40Care pumpCare Pump Faulty
Service 41Solenoid valve Y3.Solenoid valve Y3 defective
Service 42Solenoid valve Y4Solenoid Y4 Care defective 

Error CodeError DescriptionRemedy of Error
Service 43CDS sensorReset error by Successful CDS Sensor next cleanjet start
Service 44Steam heating / B4No temperature raise during recognised
by B5during steaming time while being in cleajet phase
Service 100Main Contactor or pcb on off
off Switch
power remained present on fan motor when unit was
switch off last.
Service 110SC pumpreset error by successful completing a cleanjet aboart
cycle. 
Service 120care pump, level electrodefilling care solution steam tank in to failed


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Additional software information Software can only be upgraded to a newer version. • Standard Rational software: During software update the following display will be shown in sequence: - All 4 windows: UPDATE (if shown only for a few seconds the software on the pcb is latest version already) - Window 3: ON please wait; - SCC display will show for 1 second; - Window 3: Please dont touch (during this time the drain valve and clima valve will initialise) - Unit will switch OFF and ON again automatically; - UPDATE will show again; - ON please wait; - Unit will switch OFF and ON again automatically; - ON please wait; - After re booting of the pcb the SCC display will show and the steam generator will be automatically flushed; (disconnect the USB stick now) • Chain account software: During software update the following display will be shown in sequence: - All 4 windows: UPDATE - please wait; - All 4 windows: script (during this time the drain valve and clima valve will initialise) - unplug stick (disconnect the USB stick now) - ON please wait; - Units will switch OFF and ON again automatically; - ON please wait; After re booting of the pcb is finished the chain display will show; • Software update does not delete any information which was enterd by the customer before. All information as entered in Basic Setting will remain valid; • If during software upgrade VFD is shown, leave the USB stick connected and switch the unit OFF and ON again. If VFD remains on the display, the internal software structure on the pcb is corrupt and the PCB must be changed. • Unit without function after SW upgrade - External EEPROM corrupt, contact Rational for EEPROM repair • Should there be a 1 sec. on - off relais sound on the pcb during software upgrade and Software upgrade does not work: The usb stick is not formatted in FAT (16) mode. Safe the data on your computer and reformat USB stick to FAT (16)


General function The transformer supplies 12VAC power to the I/O pcb. The power supply for the processor on the main pcb is generated on the I/O pcb and sent via Bus from the I/O pcb to the main pcb. All information from the main PCB to the I/O pcb, fan motor(s) and ignition box(es) is send via this BUS system. As each component has it’s own unique address, the information can be routed correctly. Address of Components: 1 - I/O pcb: 2 - Fan motor (table unit), Fan motor bottom (floor unit) 4 - Fan motor top (floor unit); NOTE: Jumper must be set! 8 - Ignition box (Table unit), Ignition box top (floor unit) 16 - Ignition box bottom (floor unit); NOTE: Jumper must be set! 4. Fault finding Error code 34.1 BUS I/O pcb; change point of RJ45 connection Error code 34.2 BUS fan motor bottom; Check if green LED on fan motor is on (100-240V connected to motor?; check main contactor); Connect BUS to second terminal Error code 34.3 BUS I/O pcb AND fan motor bottom; Check if green LED on fan motor is on (100-240V connected to motor?; check main contactor); Connect BUS to second terminal Check all BUS connections; Error code 34.4 BUS fan motor top; Check all BUS connections, motor LED and main contactor Error code 34.5 (1+4) BUS I/O pcb AND fan motor top of the floor unit; Check all BUS connections, motor LED and main contactor Error code 34.6 (2+4) BUS at both fan motor of the floor unit; Check all BUS connections, motor LED and main contactor Error code 34.7 (1+2+4) etc Error code 34.8 Ignition box table unit Check all BUS connections Error code 34.9 (1+8) etc etc • When any error code is present, try to connect the BUS cable to the second BUS terminal of the component. Should the error code change, the individual BUS connection is defective; • When any error code is present, try to change the BUS cable (40.00.472) in between the components to locate defective cables and exclude any open circuit. NOTE: Do not allow the BUS cable to touch ANY hot surface, i.e. Steam heating elements. The insulation of the single wire strands inside the black BUS cable might melt and wires can short circuit. Attention: A short circuit on the BUS can damaged the main pcb, I/O pcb, fan motor and ignition box at the same time!

Descaler volume for electric units (quantity in gal given as US gallons!) SCC/CM 61 SCC/CM 62 SCC/CM 101 SCC/CM 102 SCC/CM 201 SCC/CM 202 3,6 L / 0,95gal 8 L / 2,1gal 8 L / 2,1gal 11,5 L / 3 gal 12 L / 3,1gal 14,6 L / 3,85gal Descaler volume for gas units SCC and CM SCC/CM 61G SCC/CM 62G SCC/CM 101G SCC/CM 102G SCC/CM 201G SCC/CM 202G

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