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Summary of Contents for Amana DFS18G
- Page 1 This Owner's Manual is provided and hosted by Appliance Factory Parts. AMANA UFS18E Owner's Manual Shop genuine replacement parts for AMANA UFS18E Find Your AMANA Microwave Parts - Select From 149 Models -------- Manual continues below --------...
- Page 2 Microwave Oven Service Manual DFS18G DFS18E UFS18E CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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Page 3: Safety Precautions
SAFETY PRECAUTIONS This device is to be serviced only by properly qualified service personnel. Consult the service manual for proper service procedures to assure continued safety operation and for precautions to be taken to avoid possible exposure to excessive microwave energy. PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY... -
Page 4: Table Of Contents
CONTENTS (Page) SAFETY PRECAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Inside front cover SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1 CAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1 INSTALLATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1... -
Page 5: Specifications
SPECIFICATIONS ITEM DESCRIPTION MODEL DFS18G/DFS18E UFS18E Power Requirement 230 Volts AC 50 Hz 240 Volts AC 50 Hz 2,600 Watts (12 A) 2,700 Watts (12 A) Single phase, 3 wire grounded Power Output 1,800 Watts full microwave power (IEC60705) Microwave Frequency... -
Page 6: Cautions
CAUTIONS Unlike other appliances, the microwave oven is MICROWAVE RADIATION high-voltage and high-current equipment. Personnel should not be exposed to the Though it is free from danger in ordinary use, microwave energy which may radiate from the extreme care should be taken during repair. magnetron or other microwave generating device if it is improperly used or connection. -
Page 7: Installations
INSTALLATIONS BEFORE YOU BEGIN,READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY. INSTALLING EARTHING INSTRUCTIONS 1. Empty the microwave oven and clean inside it with This microwave oven is designed to be used in a fully a soft,damp cloth.Check for damage such as earthed condition. -
Page 8: Operating Instructions
OPERATING INSTRUCTIONS FEATURES Window Door Screen Electronic Control Safety Door Lock System CONTROL PANEL Display Some items in display can be seen but will not glow. Pads TIME ENTRY Use to enter heating time without changing preprogrammed number pads. Pads 1-0 Use to begin heating with preprogrammed times and power levels or to enter times for “Manual Time Entry”... -
Page 9: Features
Use to start “Manual Time Entry” program or restart interrupted cooking cycle. Use to advance to next user option. Use to save times and power levels when programming pads. QTY2x Use to automatically increase the programmed time for double quantities. DFS18G... -
Page 10: Cooking Displays
Cooking Displays Cooking Displays Cooking Displays Cooking Displays Shows when power is connected to oven. Open and close door to clear. READY shows when oven control will accept entries. Appears after oven door is opened and closed. 33:33 shows heating time. When more than 1 heating stage is programmed, total time for all stages displays. -
Page 11: Operation
Operation Preprogrammed Times and Cook Level All preprogrammed pads arrive set at full power. CAUTION To avoid fire, do not dry newspapers or clothes in Option: Single Digit Option: Double Digit microwave oven. Pads Heating Pads Pads Heating Heating Times Times Times 10 sec. -
Page 12: Programming
PROGRAMMING Preprogrammed Number Pads Multiple Heating Stages Oven has 10 preprogrammed number pads. Follow Follow instructions below to program oven to perform 3 instructions below to program heating times and power consecutive heating cycles without interruption. levels for customized cooking. 1. - Page 13 User Options 4. Press START pad to advance to next option. See table for options. Follow the instructions below to customized the 5. Press number pad (0,1-3) to change option. microwave ovenÕs operation. End-of-cycle signal, 6. Press START pad to save changes. maximum heating time and other options can be •...
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Page 14: Schematic Diagram
SCHEMATIC DIAGRAM... -
Page 15: Circuit Description
CIRCUIT DESCRIPTION GENERAL DETAILS • A high voltage of approximately 2100 volts AC is generated in the secondary of the high voltage • The low voltage transformer supplies the necessary transformer which is increased by the action of the high voltage to the micom controller when power cord is voltage diode and charging of the high voltage plugged in. -
Page 16: Service Information
SERVICE INFORMATION TOOLS AND MEASURING INSTRUMENTS NECESSARY TOOLS NECESSARY MEASURING INSTRUMENTS Tools normally used for TV servicing are sufficient. ¥ TESTER (VOLTS-DC, AC, Ohmmeter) Standard tools are listed below. ¥ Microwave survey meter ¥ Diagonal pliers - Holaday HI-1500 ¥ Long nose pliers HI-1501 ¥... -
Page 17: Measurement With Outer Case Removed
MEASUREMENT WITH OUTER CASE NOTES WHEN MEASURING REMOVED ¥ Do not exceed meter full scale deflection. ¥ The test probe must be removed no faster than ¥ When you replace the magnetron, measure for 1 inch/sec (2.5 cm/sec) along the shaded area, microwave energy leakage before the outer case is otherwise a false reading may result. -
Page 18: Measurement Of Microwave Power Output
MEASUREMENT OF MICROWAVE POWER OUTPUT • Microwave power output measurement is made with • The microwave power output P in watts is calculated the microwave oven supplied at its rated voltage and from the following formula : operated at its maximum microwave power setting with 4187 x (∆T) a load of (1000±5) g of potable water. -
Page 19: Pcb Assembly Removal
D. PCB ASSEMBLY REMOVAL Remove choke cover 1) Remove the control panel assembly from the cavity. (Refer to control panel assembly removal on previous page.) 2) Remove screws which hold the PCB SUB ASSÕY to the control panel. 3) Disconnect the flat cable from the PCB SUB ASSÕY and take off the PCB SUB ASSÕY PCB Sub Asm Control Panel... -
Page 20: Magnetron Removal
F. MAGNETRON REMOVAL G. REMOVING THE TURNTABLE MOTOR 1) Remove the turntable and rotating ring. 1) Disconnect the leadwire from the magnetron. 2) Lay the unit down on its back. 2) Carefully remove the mounting screws holding the 3) Remove the turntable motor cover. magnetron and the waveguide. - Page 21 H. HIGH VOLTAGE TRANSFORMER K. INTERLOCK SYSTEM REMOVAL 1) INTERLOCK MECHANISM The door lock mechanism is a device which has 1) Discharge the high voltage capacitor. been specially designed to eliminate completely 2) Disconnect the leadwire from magnetron, high voltage microwave activity when the door is opened during transformer, and capacitor.
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Page 22: Interlock Continuity Test
INTERLOCK CONTINUITY TEST WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS. TYPE NO. SZM-V 16-FD-63 OR V-16-3C 25 FOR PRIMARY SWITCH TYPE NO. SZM-V 16-FD-62 OR V-16-2C 25 FOR MONITOR SWITCH TYPE NO. SZM-V 16-FD-63 OR V-16-3C 25 FOR SECONDARY SWITCH B. -
Page 23: Component Test Procedure
COMPONENT TEST PROCEDURE CAUTIONS 1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. -
Page 24: High Voltage Capacitor
COMPONENTS TEST PROCEDURE RESULTS Antenna Gasket Chassis Filament NOTE: When testing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition. HIGH VOLTAGE Measure the resistance. Normal: Momentarily indicates CAPACITOR (Ohm-meter scale: Rx1000) several ohms, and... - Page 25 COMPONENTS TEST PROCEDURE RESULTS Check for continuity of relay 3 an RELAY 3 / RELAY 5 POWER ohm-meter. LEVEL (Remove wire leads from relay 2 and operate the unit.) 3 sec 9 sec 4 sec 8 sec 5 sec 7 sec 6 sec 6 sec 7 sec...
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Page 26: Trouble Shooting
TROUBLE SHOOTING WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY. IF THE FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL. CAUTIONS 1. Check grounding before checking for trouble. 2. - Page 27 (TROUBLE 1) The following visual conditions indicate a probable defective control circuit. 1. Incomplete segments. ¥ Segment missing. ¥ Partial segment missing. ¥ Digit flickering (NOTE: Slight flickering is normal.) 2. Colon does not turn on or blink. 3. A distinct change in the brightness of one or more numbers in display. 4.
- Page 28 (TROUBLE 2) Oven does not operate at all, Display window does not display any figures, and no input is accepted. CONDITION CHECK RESULT CAUSE REMEDY Malfunction of the Replace fuse, Check continuity 1. Fuse blows. Continuity. primary, monitor, monitor switch. of monitor secondary switch (with...
- Page 29 (TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired program times are set and START pad is touched. CONDITION CHECK RESULT CAUSE REMEDY Defective Replace Check continuity 1. Setting time No continuity. secondary switch. secondary switch.
- Page 30 (TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run. (Display operates properly) CONDITION CHECK RESULT CAUSE REMEDY No microwave Defective PCB Replace PCB Disconnect the No continuity. oscillation. assembly. assembly. wire leads from relay 2 and check continuity Continuity.
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Page 31: Exploded View
#EV# EXPLODED VIEW INTRODUCTION MODEL : DFS18G OVEN CAVITY PARTS INTERIOR PARTS BASE PLATE PARTS DOOR PARTS LATCH BOARD PARTS CONTROL PANEL PARTS... - Page 32 #EV# EXPLODED VIEW INTRODUCTION MODEL : DFS18E UFS18E OVEN CAVITY PARTS INTERIOR PARTS BASE PLATE PARTS DOOR PARTS LATCH BOARD PARTS CONTROL PANEL PARTS...
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Page 33: Door Parts
#EV# DOOR PARTS MODEL : DFS18G DFS18E UFS18E 1013 1005 1004 1385 1002 1000 W136 1006 1007 W105 W108 1384 1009 1386 W206 W207... -
Page 34: Control Panel Parts
#EV# CONTROL PANEL PARTS MODEL : DFS18G 2012 W102 2006 2381 W130 2000 2005 2400... - Page 35 #EV# CONTROL PANEL PARTS MODEL : DFS18E UFS18E 2004 W102 2381 2006 W130 2000...
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Page 36: Oven Cavity Parts
#EV# OVEN CAVITY PARTS MODEL : DFS18G W158 DFS18E 5045 UFS18E W109 3001 W121 W108 W121 W105 3009 W101 W109 5024 3007 3004 5033 5042 5000 W101 5203 W108 W109 3009 7037 W105... -
Page 37: Latch Board Parts
#EV# LATCH BOARD PARTS MODEL : DFS18G DFS18E UFS18E 4001 W102 4003 4002 W160 4008 4002 4004 4000... -
Page 38: Interior Parts
#EV# INTERIOR PARTS MODEL : DFS18G DFS18E UFS18E 5103 5201 W109 W108 W101 W109 W105 3381 5020 5041 W108 5102 5040 5016 W136 3006 W108 9000 W101 W101 3031 3028 5010 5104 W108 5009 W105 5302 5013 W101 5106 5105... -
Page 39: Base Plate Parts
#EV# BASE PLATE PARTS MODEL : DFS18G 5061 DFS18E UFS18E 5008 9002 6001 W121 6000 3901 W162 3902 3026 W121 W101 W101 6013 W108... -
Page 40: Schematic Diagram Of P.c.b
SCHEMATIC DIAGRAM OF P.C.B... -
Page 41: Circuit Board
PRINTED CIRCUIT BOARD...
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