Electrolux EI27MO45GSA Technical & Service Manual Download

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1-2

Basic Information

This Manual has been prepared to provide Electrolux Service Personnel with Operation and
Service Information for Electrolux Microwave Ovens EI27MO45GSA and EI30MO45GSA.

Table of Contents

Section 1 Basic Information

Safe Servicing Practices ..........................................  1-1
Table of Contents ....................................................   1-2
Warnings and Safety Information ............................   1-3
Precautions To Be Observed Before And During
Servicing To Avoid Possible Exposure To
Excessive Microwave Energy ..................................   1-4
Before Servicing ......................................................   1-4
Danger High Voltage ...............................................   1-4
Before Servicing ......................................................   1-5
When Testing Is Completed ....................................   1-5
Microwave Measurement Procedure USA ..............   1-6
Microwave Measurement Procedure Canada .........   1-7
Product Specification ...............................................   1-8
Grounding Instructions ............................................   1-9
Oven Diagram .........................................................   1-10

Section 2 Operation

Operating Sequence Description ............................. 2-1
Off

Condition

........................................................ 2-1

Cooking

Condition

................................................ 2-1

Oven Schematic-Off Condition ................................   2-2
Oven Schematic-Cooking Condition ........................  2-2
Variable Cooking .....................................................   2-3
  Sensor Cooking Condition....................................   2-3
Cooking

Sequence

............................................... 2-3

Touch Control Panel Assembly ...............................   2-4
Component Descriptions .........................................   2-4
  Door Open Mechanism ........................................   2-4
  Primary Switch, Third Door Switch & Door
Sensing

Switch

..................................................... 2-4

Monitor

Switch

...................................................... 2-5

Cooling Fan Motor ................................................ 2-5
Turntable

Motor

.................................................... 2-5

Monitor

Fuse

........................................................ 2-5

  Cavity Temperature Fuse .....................................   2-5
  C/T Temperature Fuse .........................................   2-5
Humidity Sensor Circuit ...........................................   2-6

Section 3 Troubleshooting and Testing

Warnings and Cautions ...........................................   3-1
Troubleshooting Guide Chart ..................................   3-2
Test Procedures ......................................................   3-3
Circuit Testing Charts ..............................................   3-12

Section 4 Component Teardown

Warnings and Cautions ...........................................   4-1
Outer Case Removal ...............................................   4-2
Power Transformer Removal ...................................  4-2
High Voltage Rectifier and High
Voltage Capacitor Removal .....................................   4-3
Magnetron Removal ................................................   4-3
Oven Lamp and Lamp Socket Removal ..................   4-4
Positive Lock® Connector
(No-Case Type) Removal ........................................   4-4
Fan Motor Removal .................................................   4-5
Servicing The Touch Control Panel .........................   4-6
Control Panel Assembly Removal ...........................   4-7
Key Sheet Replacement ..........................................   4-7
Door Sensing Switch/Primary Switch/Third Door
Switch And Monitor Switch Replacement ................   4-8
Door Sensing Switch/Primary Switch/Third Door
Switch And Monitor Switch Adjustment ...................   4-8
Door Replacement ...................................................  4-9
Sealer Film ..............................................................   4-10
Turntable Motor Removal ........................................   4-10

Section 5 Wire Diagrams

Wiring Schematic Oven Off Condition .....................   5-1
Pictorial Diagram .....................................................   5-2
Wiring Diagram ........................................................   5-3

Section 6 Parts List

Parts Listing .............................................................   6-1
Oven And Cabinet Parts Exploded View .................   6-3
Control And Door Parts Exploded View ...................  6-4
Packing and Accessories Exploded View ................  6-5