Service technicians only.
Important Information Important Notices for Servicers and Consumers ACP will not be responsible for personal injury or property damage from improper service procedures. Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service.
Table of Contents Important Information .................................................... 2 Important Safety Information ........................................ 4 Grounding Instructions ............................................... 7 Servicing of Grounded Products ............................ 8 Wiring ................................................................................. 8 Proper Grounding and Polarization of 120 Volts Wall Outlets ............................................
Important Safety Information ! WARNING Read the following information to avoid possible exposure to microwave radiation: The basic design of the Microwave Oven makes it an inherently safe device to both use and service. However, there are some precautions which should be followed when servicing the Microwave Oven to maintain this safety. These are as follows: 1. Always operate the unit from an adequately grounded outlet. Do not operate on a two-wire extension cord. 8.
Important Safety Information Recognize this symbol as a SAFETY message ! WARNING When using electrical equipment, basic safety precautions should be followed to reduce the risk of burns, electrical shock, fire, or injury to persons. 1. READ all instructions before using equipment. 2. READ AND FOLLOW the specific “PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY”. 3. This equipment MUST BE GROUNDED. Connect only to properly GROUNDED outlet. See “GROUNDING INSTRUCTIONS”. 4.
Important Safety Information ! CAUTION To avoid risk of personal injury or property damage, observe the following: 1. Briskly stir or pour liquids before heating with microwave energy to prevent spontaneous boiling or eruption. Do not overheat. If air is not mixed into a liquid, liquid can erupt in oven or after removal from oven. 7. Do not use regular cooking thermometers in oven. Most cooking thermometers contain mercury and may cause an electrical arc, malfunction, or damage to oven. 8.
Important Safety Information ! Grounding Instructions WARNING Precautions to be observed before and during servicing to avoid possible exposure to excessive microwave energy, or electrical shock disconnect power to oven. • Do not operate or allow oven to be operated with door open.
Important Safety Information Servicing of Grounded Products Explanation The standard accepted color coding for grounding wires is GREEN or GREEN WITH YELLOW STRIPE. These ground leads are NOT to be used as current carrying conductors. It is extremely important that the technician replace any and all grounds prior to completion of the service call. Under no condition should ground wire be left off causing a potential hazard to technicians and consumer.
General Information Unpacking Equipment Radio Interference • Inspect equipment for damage such as dents in door or dents inside oven cavity. • Report any dents or breakage to source of purchase immediately. Do not attempt to use oven if damaged. • Remove all materials from oven interior. Microwave operation may cause interference to radio, television, or similar equipment.
General Information Model Identification • For ACP product call 1-866-426-2621 or visit the Web Site at www.acpsolutions.com When contacting for service support, provide product information located on rating plate.
Troubleshooting Procedures When you get a complaint from customers, evaluate the complaint carefully. If the following symptoms apply, instruct the customer in the proper use of the microwave oven. This can eliminate an unnecessary service call. ! CAUTION • • • • Verify proper earthing before checking for trouble. Be careful of the high voltage circuit. Discharge the high voltage capacitor.
Troubleshooting Procedures Trouble 1: The following visual conditions indicate a probable failed 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. One or more digits in the display are not lighting. 5.
Troubleshooting Procedures (Electronic Models) Trouble 2: Oven does not operate at all, display window does not display any digits, and no input is accepted. Fuse blows. Check continuity of monitor switch with door closed. Continuity Malfunction of the monitor switch. Replace the fuse, primary, secondary, monitor switches and controller. No Continuity Replace fuse Check continuity of primary switch with door opened. Continuity Malfunction of primary switch.
Troubleshooting Procedures (Electronic Models) Trouble 3: Display shows all digits programmed, but does not start cooking when the START pad is pressed. Check continuity of secondary switch with door closed. Time does not count down after START pad is pressed. No Continuity Malfunction of secondary switch. Replace the secondary switch. Continuity Check connection between CN1 connector and controller. Continuity Failed controller. Replace controller. No Continuity Loose connection.
Troubleshooting Procedures (Electronic Models) Trouble 4: Output performance is low. Oven operates with little or no heat. Lower than 90% of rated voltage. Check the power supply voltage. Decrease in supply voltage under load. Normal Disconnect wire leads from relay RY2 and verify on and off times. Abnormal Failed controller. Customer must contact local power company or qualified electrician. Replace controller. Normal Measure the output power. Abnormal Failed magnetron Replace magnetron.
Troubleshooting Procedures (Electronic Models) Trouble 5: No microwave oscillation even when oven light and fan motor operate. No microwave oscillation. Disconnect wire leads from relay RY2 and verify continuity of the relay. No Continuity Check high voltage transformer. Abnormal Failed controller. Replace controller. Continuity Failed high voltage transformer. Replace high voltage transformer. Failed high voltage capacitor. Replace high voltage capacitor. Normal Check high voltage capacitor.
Testing Procedures ! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge capacitor before servicing, unless testing requires power. Illustration Component Thermal cutout Testing Disconnect all wires from TCO. Measure resistance across terminals. Cavity TCO............................................ Magnetron TCO..................................... Diode Discharge Capacitor Remove diode lead from capacitor and connect ohmmeter.
Testing Procedures ! To avoid risk of electrical shock, personal injury before servicing, unless testing requires power. Illustrati on Component Interlock switch assembly 3 Monitor 4 1 2 5 Primary 6 Secondary WARNING or death; disconnect power to oven and discharge capacitor Testing Disconnect wires to switch. Results With door open measure resistance from: Monitor - Terminal 3 - 4.......................... Primary - Terminal 1 - 2 ......................... Secondary - Terminal 5 - 6 ...........
Testing Procedures ! To avoid risk of electrical shock, personal injury before servicing, unless testing requires power. Illustrati on Electronic Control RCS10MPA RCS10SW2A RFS12SW2A Electronic Control RCS10MPSA RFS12MPSA Electronic Control Component Keyboard assembly WARNING or death; disconnect power to oven and discharge capacitor Testing Continuity is indicated as 100 Ω and below. 1 2 3 4 5 6 7 8 9 10 11 Keyboard assembly Continuity is indicated as 100 Ω and below.
Testing Procedures ! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge capacitor before servicing, unless testing requires power. RLY 3 2 1 TAB 1 TAB 2 9 8 5 4 3 1 CN1 Function Power to current transformer Power from current transformer Power from Oven TCO Power to Oven Light Power to Blower Motor Secondary Interlock Switch Power to Relay 3 ©2010 ACP, Inc.
Testing Procedures ! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge capacitor before servicing, unless testing requires power. Power Test All ACP 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.
Disassembly Procedures ! To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. WARNING High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. It is neither necessary or advisable to attempt measurement of the high voltage. Before touching any oven components or wiring, always unplug the oven from its power source and discharge capacitor.
Disassembly Procedures ! To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. WARNING Door Assembly ! Door Disassembly CAUTION A microwave leakage test must be performed anytime a door assembly is removed, replaced, disassembled, or adjusted for any reason. Door Removal 1. Disconnect power to oven. 2.
Disassembly Procedures ! WARNING ! CAUTION To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. Interlock Switches Primary switch is operated by bottom latch arm. A microwave leakage test must be performed anytime a door assembly is removed, replaced, disassembly, or adjusted for any reason. Control Panel Removal 1.
Disassembly Procedures ! To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. WARNING Adjusting Interlocks The interlock monitor, primary, and secondary switches act as a final safety switch, protecting the operator from microwave energy. After adjusting the interlock switch assembly, verify wires are correctly connected. For door fit and switch operation, switch bracket is adjustable. 1.
Disassembly Procedures ! To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. WARNING Transformer 1. Disconnect power to oven and remove outer case, (see "Outer Case" procedure). 2. Discharge high voltage capacitor, (see "High Voltage Capacitor" section). 3. Disconnect and label wire leads from transformer. 4. Remove screws securing transformer and remove. 5.
Disassembly Procedures ! To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. WARNING Blower Motor or Wheel Splatter Shield 1. Disconnect power to oven and remove outer case, (see "Outer Case" procedure). 2. Remove outer case. 3. Disconnect wiring from blower motor. 4. Remove screws securing scroll to chassis. 5. Slide scroll discharge snout from partition and lift scroll assembly from unit.
Disassembly Procedures ! To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the capacitors before following any disassembly procedure. WARNING Magnetron Thermal Cut-Out (TCO) Oven Light Removal 1. Disconnect power to oven and remove outer case, (see "Outer Case" procedure). 2. Remove outer case. 3. Remove TCO by removing screws. 4. Disconnect wiring. 5. Replace component and reverse procedure to reassemble.
Appendix A ©2010 ACP, Inc. 16023293 Rev.
Quick Start Reference Guide Refer to Product Safety Manual for Safety Statements Complete Owner’s Manual available online Oven Wall Clearances The switching operation of this microwave oven can cause voltage fluctuations on the supply line. The operation of this oven under unfavorable voltage supply conditions can have adverse effects. This device is intended for the connection to a power supply system with a maximum permissible system impedance Zmax of 0.
Quick Start Reference Guide Refer to Product Safety Manual for Safety Statements So...how do I use it? (Digital Dial) Heating 1. 2. 3. 4. 5. Complete Owner’s Manual available online :30 QUICK SET Pad Open oven door, place food in oven, and close oven door. Turn time entry knob clockwise until desired time displays. • Factory default setting for cooking time is 10 minutes. Cooking time can be changed and set to 60 minutes.
Quick Start Reference Guide CLEAN FILTER Refer to Product Safety Manual for Safety Statements Complete Owner’s Manual available online This oven displays CLEAN FILTERat user defined intervals. When the message displays ACP recommends cleaning the air filter thoroughly. Cleaning the air filter will not shut off the message. The message will stop displaying automatically after 24 hours. Depending on microwave use and environmental conditions, the filter may need to be cleaned more frequently.
Quick Start Reference Guide Refer to Product Safety Manual for Safety Statements Complete Owner’s Manual available online ? Can I change an option? Options such as single or double pad programming, beep volume, and maximum cooking time can be changed to suit individual preferences. To change options: DO NOT power spray No metal pans Numbered Pads 1 End of Cycle Beep 2 Speaker Volume 3 Key Beep 4 Keyboard Enable Window 5 Add Time During Heating 6 Reset Door Open 7 (some models) 1. Open oven door.
