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Service
Commercial Microwave Oven
60hz Compact Models
starting at Serial No. 1910000000
Service Manual
This manual is to be used by qualified
service technicians only. ACP, Inc.
does not assume any responsibility for
property damage or personal injury for
improper service procedures done by
an unqualified person.
This Base Manual covers all
Commercial Microwave Ovens.
Refer to individual Technical Sheet
for information on a specific model.
1
16400044
Revision 1
December 2019
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Table of Contents
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Summary of Contents for ACP MDC182SA
- Page 1 60hz Compact Models starting at Serial No. 1910000000 Service Manual This manual is to be used by qualified service technicians only. ACP, Inc. does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.
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Page 2: Table Of Contents
TABLE OF CONTENTS Important Safety Instructions ..................... 3-4 Oven Specifications ......................5-6 Quick Start Reference Guide ..................... 7-8 Component Location ......................9-13 Airflow ..........................14 Component Testing ....................... 15-17 Service Mode……………………………………………………………………………………….17 Power Output Test…………………………………………………………………………………18 Wiring and Schematic Diagrams..................19-23... -
Page 3: Important Safety Instructions
–Outside the U.S.A. and Canada, call 319-368-8120. –Email: Commercialservice@acpsolutions.com. Warranty service must be performed by an authorized ACP servicer. ACP also recommends contacting an authorized ACP servicer, or ACP ComServ Service Support if service is required after warranty expires. PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO... - Page 4 To avoid risk of personal injury or property damage, observe the following safety CAUTION instructions: General Use: 1. Do not use regular cooking thermometers in oven. Most cooking thermometers contain mercury and may cause an electrical arc, malfunction, or damage to oven. 2.
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Page 5: Oven Specifications
OVEN SPECIFICATIONS CAUTION All safety information must be followed To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires power. Models HDC/MDC12A2 HDC/MDC182 HDC1815 HDC18SD2 HDC/MDC21* CRC18* CRC21* Power Source Voltage AC 208/240... - Page 6 CAUTION All safety information must be followed To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires power. Models MDC182SA MDC212SA MDC18MT Power Source Voltage AC Amperage (single unit) 14.4...
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Page 7: Quick Start Reference Guide
QUICK START GUIDE Refer to Owner’s Manual for Safety Statements. Complete Owner’s Manual available online. This document covers HDC*, MDC*, DEC*, MCHDC*, and CRC* models (D) (E) (ii) ( iii) (iv) (v) (vi) OVEN CLEARANCES CONTROL PANEL FEATURES Allow at least 2” (5.1 cm) of clearance (A) USB Port (F) Secondary Function Keypads (B) Display... - Page 8 Access and Modify User Options There are several options you can change to customize the operation of the oven for your business. Options are shown below. The factory setting is shown in bold type. Press and hold keypad number “4”/ USER OPTIONS. If prompted, enter the PIN Code and press START/OK keypad Press the START/OK keypad to scroll through pages of user options To access an individual user option, press the corresponding number keypad...
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Page 9: Component Location
OVEN CONSTRUCTION BLOWER, CAPACITOR, DIODE, INTERLOCK... - Page 10 DOOR...
- Page 11 CONTROL BOARD, MAGNETRONS, DUCTS, FUSE...
- Page 12 TRAY, CAVITY, ANTENNAS...
- Page 13 WRAPPER, ACCESS PANEL, LAMP...
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Page 14: Airflow
AIR FLOW 1. AIR ENTERS THROUGH FRONT FILTER 2. AIR IS DRAWN INTO BLOWER 3. AIR PUSHED THROUGH MAGNETRONS 4. AIR PUSHED CAVITY AND EXITS THROUG CAVITY DUCTS... -
Page 15: Component Testing
COMPONENT TESTING Illustration Component Testing Results Disconnect all wires from TCO. Measure resistance across terminals. Open at 104° C (219° F Cavity Thermal Fuse ........Thermal Cutouts Magnetron TCO ..........Open at 138° C (280° F) and Closed at 82° C (180° F). Discharge Capacitors Infinite resistance should be measured in one direction and... - Page 16 retest. Remove all wires from motor. Blower Motor Measure resistance COM to 208 Approx 23Ω Measure resistance COM to 230 Approx 26Ω Measure resistance 208 to 230 Approx 3Ω Remove all wires from motor. Stirrer Motor- 25RPM Approximately 25k Ω Measure coil resistance Discharge Capacitor Remove all wires from terminals, and...
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Page 17: Service Mode
Disconnected from Main Board Traces 1 to 8 to 10 0-150Ω 1 to 7 to 10 0-150Ω Touch Panel Assembly 1 to 6 to 10 0-150Ω 1 to 5 to 10 0-150Ω 1 to 4 to 10 0-150Ω 1 to 3 to 10 0-150Ω... -
Page 18: Power Output Test
POWER OUTPUT TEST All Amana and Menumaster microwave oven power outputs are rated using the IEC705 standards. Using the IEC705 test method requires precision measurements and equipment that is not practical to be performed in the field. Using the test shown below will indicate if the oven performance is satisfactory. -
Page 19: Wiring And Schematic Diagrams
WIRING AND SCHEMATIC DIAGRAMS HDC12A2 P2007001M MDC12A2 P2007002M... - Page 20 HDC182 P2007004M MDC182 P2007006M HDC1815 P2007003M HDC18SD2 P2007005M HDC212 P2007011M MDC212 P2007014M MDC182CA P2007008M MDC182CD P2007009M CRC18T2OG2 P2007010M HDC21RB2 P2007012M HDC21DQ P2007013M MCHDC21 P2007015M CRC21T2RLPF P2007016M...
- Page 21 MDC182SA P2007025M MDC212SA P2007031M MDC212B P2007032...
- Page 22 MMDC182K P2007007M...
- Page 23 MCHDC21T P2007030M...
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