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  | Problem | 
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  | Possible Cause | 
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  | Code | No.  | 
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  | No  | 
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  | W  | |||
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  | Operation lamp and error lamp “OFF”  | 
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  | Unit does not heat, no  | 
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  | Building’s power fuses  | 
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  | S25  | 
  | reaction, contactor does  | 
  | U250  | defective, error on  | 
  | M201  | Check mains supply  | 
  | L  | ||||
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  | not work  | 
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  | electrical transmission  | 
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  | U251  | Error on operational  | 
  | M251  | Check operational control  | 
  | L  | |||
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  | control  | 
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  | S26  | 
  | Building fuses blow when  | 
  | U241  | Short circuit in generator  | 
  | M241  | Repair or replace  | 
  | L  | ||||
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  | unit is switched on  | 
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  | generator  | 
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  | S27  | 
  | Some cooking platforms  | 
  | U271  | Generator defective  | 
  | M241  | Repair or replace  | 
  | L  | ||||
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  | do not heat  | 
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  | generator  | 
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  | S28  | 
  | Unit does not heat, no  | 
  | U13  | Error on   | 
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  | M13  | Check   | 
  | L  | |||
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  | reaction, no contactor  | 
  | adjustment on CPU  | 
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  | adjustment  | 
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  | Legend: W = Who should complete “Measure”  | E = End user L = Supplier  | 
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Repair Of Problems | 
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  | Measure  | 
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  | Activity | 
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  | Comment | 
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  | M10  | 
  | • Compare on another cooking platform and with an induction  | 
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  | Check if the pan is appropriate to  | 
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  | type pan  | 
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  | induction cooking or not: use a  | 
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  | magnet.  | 
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  | M11  | 
  | • Check connection of coil  | 
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  | • Check coil on line break  | 
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  | • Coil overheated (brown color change)  | 
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  | M12  | 
  | • Change power circuit board  | 
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  | M13  | 
  | • Check   | 
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  | M14  | 
  | •  | Replace   | 
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  | M30  | 
  | •  | Clear ventilation system  | 
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  | M31  | 
  | •  | Clean fan  | 
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  | M32  | 
  | • Connect fan directly at 230V  | 
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  | M33  | 
  | • Change rectifier circuit board  | 
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  | M34  | 
  | • Measure   | 
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  | Disconnect temperature sensor  | 
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  | At 25º Celsius (77ºF) resistor will read 20kOhm  | 
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  | At 70º Celsius (158ºF) resistor will read 3,5kOhm  | 
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  | • Check short circuit to case  | 
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  | • For a test:   | 
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  | M40  | 
  | • Switch off unit, cool down and switch on again. Use a pan with  | 
  | Switch off field!  | 
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  | cold water  | 
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Page 12  | Part # 4526029 (02/22/11) |