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Smart

Combi™ 

Service

2

Summary of Contents for SmartCombi ESC-220

Page 1: ...tric ESC 615 07020584 May 2007 ESC 620 07020584 May 2007 ESC 115 07020584 May 2007 ESC 120 07020584 May 2007 ESC 215 07020584 May 2007 ESC 220 07020584 May 2007 Gas GSC 615 07020584 May 2007 GSC 620 07020584 May 2007 GSC 115 07020584 May 2007 GSC 120 07020584 May 2007 GSC 215 07020584 May 2007 GSC 220 07020584 May 2007 From software 3 00 1 ...

Page 2: ...SmartCombi Service 2 ...

Page 3: ...r electric version 14 Chamber high limit only for gas version 16 No fan 1 18 No fan 2 Only unit size 20 x 20 Fan speed 1 wrong 22 Fan speed 2 wrong 22 Fan direction 24 Fan runs 25 No water 26 HW Fail Temp UREF0 to high 27 Error Power board 27 Waterfilter maintenance 27 Battery empty 28 WaveClean interrupted 28 Controller configuration Fan elec configuration 29 No gas 30 gas fan 33 generic gas faul...

Page 4: ...SmartCombi Service 4 Error messages and troubleshooting ...

Page 5: ...re temp probe defect CT1 probe defect CT2 probe defect CT3 probe defect CT4 probe defect The core temperature probe function is not available Temp probe chamber 1 defect Temp probe chamber 1 defect only 20 x The core temp probe is used as a chamber probe now The core temperature probe function is not available Due the position of the core temp probe easy temperature differences of the chamber temp...

Page 6: ...torically according to the date and time Enter the diagnosis area as follows Press the ON OFF button Press left select button menu Select 5 diagnosis with the combi pilot knob Enter diagnosis area by pressing the right select button confirm or the CombiPilot 6 Date Time Menu Soft key left Soft key right Menu 5 Diagnosis flashs Menu Soft key left Soft key right ...

Page 7: ...s not available Position of the chamber probe s 6 x 20 x On the right chamber side Designation of the component s in the wiring diagram B2 Chamber 1 or rather B3 Chamber 2 only 20 x Troubleshooting Functional test The measurements values can be demand with the service status mask Finally cancel delete the error message by a reseting the pcb 7 Check contacting at plug X11 on the keyboard card A2 al...

Page 8: ...nt in the wiring diagram B1 Troubleshooting Functional test The measurements values can be demand with the service status mask Finally cancel delete the error message by a reseting the pcb 8 Check contacting at plug X16 on the keyboard card A2 also between plug and cable Reset the electronic Mistakes cleared No Check occupancy of the probe at plug X16 see also wiring diagram Reset the electronic M...

Page 9: ...left side wall Designation of the component in the wiring diagram B5 Troubleshooting 9 Check contacting at plug X11 on the keyboard card A2 also between plug and cable Reset the electronic Mistakes cleared No Check occupancy of the probe at plug X11 see also wiring diagram Reset the electronic Mistakes cleared No Change humidity probe Mistakes cleared Change keyboard card No ...

Page 10: ...menu and select 11 Drain cooling test Finally cancel delete the error message by a reseting the pcb 10 Check contacting at plug X11 on the keyboard card A2 also between plug and cable Reset the electronic Mistakes cleared No Check occupancy of the probe at plug X11 see also wiring diagram Check function with the help of the service menu 11 drain cooling test The displayed temperature must decrease...

Page 11: ...ce broken solid state relay Check if the fan wheel is out of balance Yes Switch the unit on standby and check current consumption voltage at the load side of the SSR Is there a current flow would voltage put through and one of the green LED on the SSR s is on There is an error on the keyboard pcb LED PWM 1 or PWM 2 is permanently on control of the SSR s Replace keyboard pcb Yes Check contacts of t...

Page 12: ...d This cannot be exchanged one by one Troubleshooting 12 No Clean fresh air area Does the cooling fan work Check the function of relay K7 with the help of the relay test In the service area No Are 230 V at the supply of the cooling fan during the unit is running Is the fresh air area free of dirt left hand side at the bottom of the oven Yes No Check the function of relay K7 with the help of the re...

Page 13: ...eyboard pcb Ice damage risk Consequence The unit is out of order A temperature of 0 C 32 F has measured on the keyboard pcb Position of the temperature probe The probe is located Troubleshooting Ensure that the temperature next to the unit is not less than 0 C 32 F Perhaps change oven location Caution There is a high risk that water pressurized components were damaged 13 ...

Page 14: ...current flow would voltage put through and the green LED on the SSR s are off Open the left side wall Has the safety switch released two safety switches at the 20 x Yes No Replace broken solid state relay Check if the fan wheel is out of balance No Yes Switch the unit on standby and check current consumption voltage at the load side of the SSR Is there a current flow would voltage put through and ...

Page 15: ...during the unit is disconnected from the power supply No Replace safety limit switch Is the power supply phase L3 available and fuse F3 ok No Ensure power supply or rather replace fuse F3 Yes Yes Functional test from relay K1at the relay pcb Input X6 1 Output X 6 2 Replace relay pcb if necessary Yes Check if the neutral conductor N is available at plug X4 1 ...

Page 16: ...s Black cables at the safety switch old type Yellow cables at the safety switch current type If the old type should be installed here the safety switch has to be exchanged Additional a software update V3 03 or higher is necessary Contact after sales service department for further support Short term remedying measure Reset safety limiter Use unit only to max 220 C 428 F Set preheat factor in the se...

Page 17: ...during the unit is disconnected from the power supply No Replace safety limit switch Is the power supply phase L3 available and fuse F3 ok No Ensure power supply or rather replace fuse F3 Yes Yes Functional test from relay K1at the relay pcb Input X6 1 Output X 6 2 Replace relay pcb if necessary Yes Check if the neutral conductor N is available at plug X4 1 ...

Page 18: ...and replace if necessary 7 flashes per period Frequency controller doen t start Wrong configuration of jumper J1 on the frequency controller 18 Ja Open front panel Check the power supply and fuse F1 OK Carry out step 8 fan test in the service area The fan speed and the direction of rotation appears on the display as a confirmation Does the fan not start at any mode there is no confirmation on the ...

Page 19: ...lay K3 with the help of the relay test Voltage measurement at the respective outputs If the relay is broken the reserve relay function can be used Exchange relay pcb if necessary No Works the mode right fast Check the function of relay K2 and K5 with the help of the relay test Voltage measurement at the respective outputs If one of the relays is broken the reserve relay function can be used Exchan...

Page 20: ... configuration of jumper J1 on the frequency controller 20 Ja Open front panel Check the power supply and fuse F2 OK Carry out step 8 fan test in the service area The fan speed and the direction of rotation appears on the display as a confirmation Does the fan not start at any mode there is no confirmation on the display Attention The front panel and the door must be closed Otherwise the door cont...

Page 21: ...lay K3 with the help of the relay test Voltage measurement at the respective outputs If the relay is broken the reserve relay function can be used Exchange relay pcb if necessary No Works the mode right fast Check the function of relay K2 and K5 with the help of the relay test Voltage measurement at the respective outputs If one of the relays is broken the reserve relay function can be used Exchan...

Page 22: ...out step 8 fan test in the service area At least one of the four fan modes does not work correct Works the mode right slow Check the function of relay K3 and K5 with the help of the relay test Voltage measurement at the respective outputs If one of the relays is broken the reserve relay function can be used Exchange relay pcb if necessary Works the mode right fast Check the function of relay K3 wi...

Page 23: ...of the oven Yes Clean fresh air area No No Yes A device which produces high temperatures is next to the left side Change structural situation K2 energizes D0 K3 energizes D1 K5 energizes D2 Fast speed mode x 1 approx 1450 rpm x 2 approx 1600 rpm Medium speed mode x 1 approx 750 rpm x 2 approx 1000 rpm Slow speed mode x 1 approx 450 rpm x 2 approx 600 rpm Input Fan mode D2 D1 D0 Right slow 1 1 1 Ri...

Page 24: ...e function of relay K3 with the help of the relay test Voltage measurement at the respective outputs If the relay is broken the reserve relay function can be used Exchange relay pcb if necessary Works the mode left slow Check the function of relay K2 and K5 with the help of the relay test Voltage measurement at the respective outputs If one of the relays is broken the reserve relay function can be...

Page 25: ...e output If one of the relays is broken the reserve relay function can be use Exchange relay pcb if necessary Enter the service menu and select 5 relay test and check relay K3 Voltage measurement at the respective output If one of the relays is broken the reserve relay function can be use Exchange relay pcb if necessary Enter the service menu and select 5 relay test and check relay K5 Voltage meas...

Page 26: ...te water supply available Carry out step 10 water calibration in the service area Is steam built up in the chamber water injected over the supply pipe in the chamber At 20 x over both pipes Yes Yes Is the water inlet filter at the water connection and at the steaming unit present and free of dirt No No Ensure water supply The water flow pressure must be at least 1 5bar 21 8 psi Clean or replace fi...

Page 27: ...emperature probe B1 Drain probe B4 Chamber probe B2 Chamber probe B3 only at floor unit 20 x If the fault appears only at the automatic cleaning WaveClean the drain probe B4 is probably the cause Error Power board Description There is a communication error between keyboard and relay pcb Troubleshooting Waterfilter maintenance The water quantity maintenance was activated in the user level password ...

Page 28: ...s are not available If the device is not connected at the power supply power failure the date and time get lost Furthermore the adjustments of the autostart function get lost WaveClean interrupted Consequence description The cleaning program was stopped by the user manually If another error message turns up in the diagnosis loft at the same time this is the cause of the interruption such as error ...

Page 29: ...ate demo mode Push hold ON OFF while the unit is switched off until the unit turns on itself approx 16 sec Fault cleared No Change relay pcb Disconnect the unit from the power supply first Fault cleared No Maybe the software lost the right configuration Procedure Aktivate demo mode Push hold ON OFF while the unit is switched off until the unit turns on itself approx 16 sec Enter step 6 unit config...

Page 30: ...air and a negative pressure adapts at the Venturi This negative pressure breaks in if the gas valve is opened in the further course and a little negative pressure of 0 5 mbar 0 007 psi lasts A little negative pressure of 0 5 mbar 0 007 psi lasts if the gas valve is opened in the further course If the negative pressure at gas valve orifice goes not back no gas flows The gas supply is switch off by ...

Page 31: ... the unit is on Check transformer Check current of the glowing electrode Check under voltage of the power supply Check relay contact at the ignition box Check function of the flame control There is a problem with the flame control if a flame gets visible short time after the glowing electrode glowed the flame lapse again and the error no gas appears on the display This means that the ignition box ...

Page 32: ...from the ignition box Under voltage The supply voltage is lower than 15 of the nominal voltage name plate declaration If there is a permanently under voltage a lower input voltage can be switch over at glowing transformer T2 T3 and control transformer T1 The gas pressure is less than 10 mbar Burner is dirty The burner gauze can block by the promoted air in the course of the operating time At first...

Page 33: ...start The speed of the gas fan does not appear on the display Check power supply Check fuse F3 Check main contactor K1 Check PWM output at the electronic Change gas blower Enter the service menu and select 9 gas calibration to check the fan speed of the gas fan See also service menu of the electronic The gas fan does not start The speed of the gas fan does not appear on the display Checking speed ...

Page 34: ...ame OK signal F0 would never recognized this error is suppressed There can be an electrical problem if there is no blockage of the gas pipe This means that the flame OK signal conducted reliably to the control The reason could be the ignition box the flame signal board into the harness or wrong wiring at the ignition box Troubleshooting Remedy Function o k Yes No Check ignition box N10 N20 N20 onl...

Page 35: ...SmartCombi Service 35 Generally troubleshooting no error message appears ...

Page 36: ...of cleaner rinser remain in the cartridge or cartridge is not properly emptied the chamber did not clean the chamber and or has white deposits No error message came up during WaveClean Check diagnosis memory Ensure that the oven is in level and that both water assemblies are connected The cartridge holder could be bent Bend the cartridge holder into position Only 6 x 10 x Carry out the WaveClean T...

Page 37: ... Confirmation of remove cartridge after WaveClean is not possible because confirm does not appear on the display To confirm remove cartridge the operator has to open the door to remove the empty cartridge If door has opened the door magnet switch opens his contact If this contact hangs shortcut confirm can not appear on the display This means that the operator can not confirm remove cartridge To h...

Page 38: ...s Open the front panel as mentioned in the service documentation Disconnect the plug X6 from keyboard pcb For best electrical connection spray the contacts with contact spray Use little amount Fix the plug by using double sided adhesive tape or silicon to stabilize the plug against vibration Mount the plug and then push it against the tape to front panel Close and lock the front panel 38 Pull plug...

Page 39: ...ht door hinges Enter program and push the Start Stop button Open the chamber door Check reed contact switch function with the help of a magnet manually If you don t know the position of the door switch open the front panel located down right When the reed contact switch is closed the Start Stop LED flashes Decrease gap between front panel and door Units with left door hinges Enter program and push...

Page 40: ...pened If the start stop LED should flash and the unit does not operate the unit presumably in the demo mode 40 Enter program and push the Start Stop button Does the Start Stop LED flashing blinking Open chamber door during operation The fan must now stop and the start stop LED always on If this should not be replace door contact switch because this hangs always closed Knock slightly against the ar...

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