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Bosch HMC54151UC, Service Manual, Page: 5 / 24

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Bosch HMC54151UC Service Manual Download Page 5

 

 
Set to insulation resistance. 

2 COMPONENTS 

 

2.1 High-voltage 

diode 

 

 
Blocking direction = infinite. 
 

 

 

 

The high-voltage diode can be tested like a standard diode.   
Use an EHG tester for this.   
• Full continuity in conducting direction.   
• Infinite in blocking direction.   
 
Set to insulation resistance.   
Conducting direction = full continuity.   

 

 

Page 4 of 23 pages 

 

 

This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.

______________________________________________________________________________________________________________________________________________________________________________ 

Copyright by BSH Home Appliances Corporation                        1901 Main Street, Suite 600, Irvine CA 92614                                     700_ 58300000192890_ARA_EN_A                                               800 444-9091 

 

Summary of Contents for HMC54151UC

Page 1: ...to be used by qualified service personnel only Due to the complexity and the risk of high voltage electrical shock Bosch does not recommend that customers service their own units This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ...

Page 2: ...art 18 Troubleshooting plan no microwave power 19 Troubleshooting plan input module 20 Troubleshooting plan Error Codes of input module 22 Determining the microwave output power 23 Page 1 of 23 pages 2 2 1 2 2 2 3 2 4 2 5 3 3 1 3 2 3 3 3 4 3 5 3 6 3 7 4 4 1 4 2 4 3 4 4 4 5 4 6 4 7 This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary info...

Page 3: ...on test When repairs are complete conduct a leak rate test 1 2 Caution Always comply with the following instructions to prevent damage to the appliance or to components Comply with ESD instructions Never attempt repairs by randomly replacing components Always proceed systematically and follow the troubleshooting instructions Do not test the high voltage circuit while the appliance is running Dange...

Page 4: ... as follows 1 3 1 Normal operation with load 1 3 1 Normal operation with load Setting maximum power setting of the appliance Setting maximum power setting of the appliance Load 275 cm3 water Load 275 cm Permitted limiting value 5 mW cm2 Permitted limiting value 5 mW cm Measurement distance 5 cm Measurement distance 5 cm 2 3 water 2 1 3 2 Abnormal operation no load operation Setting maximum power s...

Page 5: ...3 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ ...

Page 6: ...tween the connection and housing Page 5 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ___________________________________________________________________________________________________________________________________...

Page 7: ...6 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited _________________________________________________________________________________________________________________________________________________________________________...

Page 8: ...t may also be possible to detect the fault by loud humming noises Before installing the magnetron ensure that the metal seal is ok and is seated correctly Page 7 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited _________...

Page 9: ...tion Switching sequence Open door Close door 1 Safety switch on right Short circuit switch 2 Safety switch on left Safety switch on left 3 Short circuit switch Safety switch on right In this case the appliance is disconnected from the power supply and can no longer be switched on Page 8 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential an...

Page 10: ...ntended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH Home Appl...

Page 11: ... material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by...

Page 12: ... 7 After repairing or replacing the motor screw the cover to the base plate with a screw Page 11 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited __________________________________________________________________________...

Page 13: ...rial is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH ...

Page 14: ...ts on the right side of cavity and on the upper of cavity 9 Lift out the upper heating elements from the cavity Page 13 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ___________________________________________________...

Page 15: ...r with the bracket and remove the outer fan blade 12 Unscrew the hot air fan motor from the hot air motor bracket Page 14 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited _________________________________________________...

Page 16: ...onductor and magnetron Page 15 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ____________________________________________________________________________________________________________________________________________...

Page 17: ...rsons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH Home Appliances Corporation 1901 Main Street Suite 600...

Page 18: ...ation Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH Home Appliances Corporation 1901 Main Street Suite 600 Irvine CA 92614 700_ 58300000192890_ARA_EN_A 800 444 909...

Page 19: ... Any unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH Home Appliances Corporation 1901 Main Street Suite 600 Irvine CA 92614 700_ 58300000192890_ARA_EN_A 800 444 9091 ...

Page 20: ...y unauthorized review use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH Home Appliances Corporation 1901 Main Street Suite 600 Irvine CA 92614 700_ 58300000192890_ARA_EN_A 800 444 9091 ...

Page 21: ...ckly during the cooking process 8 None of the display symbols is indicated after the cooking cycle has been selected 9 Time is no longer displayed at the end of the cooking process 10 No acoustic signal can be heard if the correct button is pressed Page 20 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any u...

Page 22: ...use copying disclosure or distribution in any format is prohibited ______________________________________________________________________________________________________________________________________________________________________________ Copyright by BSH Home Appliances Corporation 1901 Main Street Suite 600 Irvine CA 92614 700_ 58300000192890_ARA_EN_A 800 444 9091 ...

Page 23: ... button E 4 Thermistor short If detected revert to plug in mode Display the error code for 3 seconds E17 Preheat fail If detected revert to clock mode Display the error code for 3 seconds Page 22 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in ...

Page 24: ...temperature difference 5 Calculate output power Page 23 of 23 pages This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information Any unauthorized review use copying disclosure or distribution in any format is prohibited ___________________________________________________________________________________________________________________...

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