ACP RCS10TS Service Manual

Text of ACP RCS10TS User Guide:

• ACP RCS10TS, ©2010 ACP Inc. 16400009 13 Trouble 3: No microwave when fan motor operates. Troubleshooting Procedures (Electronic Models) CONDITION CHECK RESULT Check continuity of high voltage capacitor Continuity CAUSE Failed high voltage transformer REMEDY Replace No microwave Check continuity of high voltage rectifier in forward and backward direction with DC meter Continuity in backward direction Failedhigh voltage rectifier Replace Connect meter leads to magnetron terminal and magnetron body Continuity Failed magnetron Replace Check resistance of primary and secondary coil of high voltage transformer 0 or Failed high voltage transformer Re

• ACP RCS10TS, ©2010 ACP Inc. 16400009 19 Troubleshooting Procedures (Electronic Dial Models) Trouble 3: No microwave oscillation even though oven lamp turns on. CONDITION CHECK RESULT Check continuity of high voltage capacitor terminals with wires removed Continuity CAUSE Defective high voltage transformer REMEDY Replace No microwave oscillation Check continuity of high voltage rectifier in forward and backward direction with DC megger Continuity in backward direction Defective high voltage rectifier Replace Connect megger leads to magnetron terminal and magnetron body Continuity Defective magne

• ACP RCS10TS, ©2010 ACP Inc. 16400009 11 Troubleshooting Procedures (Electronic Models) Trouble 1: Oven does not operate at all, no inputs can be accepted. CONDITION CHECK Check continuity of interlock monitor switch with door closed Check continuity of of primary interlock switch contact with door partially open until interlock monitor switch contact close Malfunction of interlock monitor switch Shorted contacts of primary interlock switch. RESULT Continuity No Continuity Replace fuse CAUSE REMEDY Fuse blows. Failed low voltage transformer 0 or infinite Approx. 260~320 (normal) Check continuity of primary winding of low

• ACP RCS10TS, ©2010 ACP Inc. 16400009 9 General Information Unpacking Equipment • 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. Equipment Placement • Donotinstallequipmentnexttoorabovesourceof heat,suchaspizzaovenordeepfatfryer.Thiscould causemicrowaveoventooperateimproperlyand couldshortenlif

• ACP RCS10TS, 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. ©2010 ACP Inc. 16400009 29 Control Panel (Electronic) 1. Disconnect power to oven. 2. Remove outer case, see "Outer Case" procedure. 2. Disconnect and label wires from control board. 3. Open oven door. 4. Remove screw securing control panel to cavity. Lift control panel up and out to release tabs. 5. Remove screws securing control board to

• ACP RCS10TS, Important Safety Information ©2010 ACP inc. 16400009 5 Recognize this symbol as a SAFETY message SAVE THESE INSTRUCTIONS 1. READ all instructions before using equipment. 2. READ AND FOLLOW the specic “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. Install or locate this equipment ONLY in accordance with the installation instructions in this manual. 5. Some products such as whole eggs and sealed containers, for example, closed

• ACP RCS10TS, 10 16400009 ©2010 ACP Inc. 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. • Verifypropergroudingbeforecheckingfortrouble. • Becarefulofthehighvoltagecircuit. • Dischargethehighvoltagecapacitor. • Whencheckingthecontinuityoftheswitchesorofthehighvoltagetransformer,disconnectoneleadwirefrom theseparts

• ACP RCS10TS, Troubleshooting ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires power. ©2010 ACP, Inc. 16400009 23 Operating Instructions for the Holaday HI1501, HI1510, and HI1710 Purpose of these monitors is to check radiation leakage around microwave oven door or other places where radiation could possibly occur. Instrument measures radiation leakage in milliwatts per square centimeters (mW/cm 2 ). Probe should be used with the 2" (5 cm) cone spacer. Wate

• ACP RCS10TS, 16 16400009 ©2010 ACP Inc. Troubleshooting Procedures (Dial Models) Does the oven lamp light? YES YES Continuity Does the fan motor work when you shut the door and turn the timer? Check the isolation of filament winding of high voltage transformer. Replace high voltage transformer. NO Continuity Replace magnetron Good Replace or repair oven lamp. NO If microwave does not oscillate, check continuity of filament of magnetron. Poor continuity NO Continuity Check continuity filament tap (3.3V) of high voltage. Replace high Voltage transformer No Continuity Cont

• ACP RCS10TS, ©2010 ACP Inc. 16400009 17 Troubleshooting Procedures (Electronic Dial Models) 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. • Verifypropergroudingbeforecheckingfortrouble. • Becarefulofthehighvoltagecircuit. • Dischargethehighvoltagecapacitor. • Whencheckingthecontinuityoftheswitchesorofthehi

• ACP RCS10TS, Countertop Commercial Microwave Ovens This Base Manual covers general information Refer to individual Technical Sheet for information on specic models This manual includes, but is not limited to the following: Service 16400009 November 2010 RCS10TS P2001101M RCS10DS P2001102M MCS10TS P2001103M MCS10DS P2001104M

• ACP RCS10TS, 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. ©2010 ACP Inc. 16400009 27 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. Disconnecting Wire Terminals All wire terminals are locking

• ACP RCS10TS, 20 16400009 ©2010 ACP Inc. Troubleshooting Procedures (Electronic Dial Models) Trouble 4: The following visual conditions indicate a probable defective touch control circuit. 1. Incomplete segments, 1) the LED light segments missing. 2) the partical light segments missing. 2. A distinct change in the display is not on when they should be. 3. One or more LED lights in the display are not on when they should be. 4. Display does not count down or up with time cooking. 5. Oven is programmable and cooks normally but no display shows. 6. Display obviously jumps in time while counting down. 7. Display counts down noticeable too fast while cooking. 8. Oven lamp and turntable motor

• Microwave Leakage Testing ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires power. 16400009 ©2010 ACP, Inc. 22 WARNING ! Check for radiation leakage after servicing. Should the leakage be more than 4 mW/cm 2 inform Maytag immediat

• ACP RCS10TS, 14 16400009 ©2010 ACP Inc. Troubleshooting Procedures (Electronic Models) Trouble 4: The following visual conditions indicate a probable failed control circuit or membrane switch assembly. 1. Incomplete segments. • Segmentmissing. • Partialsegmentmissing. • Digitickering(Note:Slightickeringisnormal.) • “:0”doesnotdisplaywhenpowerison. 2. Adistinctchangeinthedisplayisnoton,whenitshouldbe. 3. Oneormoredigitsinthedisplayarenoton,whenitshouldbe. 4. Displayindicatesanumberdifferentfromonetouch

• ACP RCS10TS, 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. ©2010 ACP Inc. 16400009 31 4. Remove screw securing capacitor strap to bottom plate. 5. Slide capacitor out of capacitor strap and remove capacitor. 6. Replace capacitor and reverse procedure to reassemble. NOTE: When replacing H.V. components, route H.V. wires at least 1 /4" from all grounded surfaces to prevent arcing. Diode 1. Disconnect power to oven and remove outer case, (see "Outer Case" procedure). 2. Discharge high volt

• ACP RCS10TS, Important Safety Information 4 16400009 ©2010 ACP Inc. Read the following information to avoid possible exposure to microwave radiation: The basic design of the ACP 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 to maintain this safety. These are as follows: 8. Do not for any reason defeat the interlock switches. There is not valid reason for this action at any time; nor will it be condoned by Amana. 9. IMPORTANT: Before returning a unit to a customer, be sure to check for proper switch interlock action. 10. Before return

• ©2010 ACP Inc. 16400009 15 Trouble 1: Oven does not operate at all, no inputs can be accepted. Troubleshooting Procedures (Dial Models) 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 ! •�

• ACP RCS10TS, 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. 16400009 ©2010 ACP, Inc. 26 Illustration Component Testing Results Thermal cutout Disconnect all wires from TCO. Measure resistance across terminals. Cavity TCO ........................................... Magnetron TCO .................................... Closed at 122ºF (50ºC) and Opens at 185ºF (85ºC) Closed at 249ºF (115ºC) and Opens at 320ºF (160ºC) Diode Discharge Capacitor Remove diode lead from capacitor and conne

• ©2010 ACP Inc. 16400009 3 Important Information .................................................... 2 Important Safety Information ......................................... 4 Grounding Instructions ............................................... 7 Servicing of Grounded Products ................................ 8 Wiring ................................................

• ACP RCS10TS, 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. 16400009 ©2010 ACP, Inc. 26 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. Test equipment required: • 1000 ml test container and thermometer. • Di

• ACP RCS10TS, Important Safety Information ©2010 ACP inc. 16400009 7 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. • Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary: • Interlock operation • Proper door closing • Seal and sealing surfaces (arcing, wear, and other damage) • Damage to or loosening of hinges and latches • Evidence

• ACP RCS10TS, 12 16400009 ©2010 ACP Inc. Troubleshooting Procedures (Electronic Models) Trouble 2: Display shows all gures selected, but does not start cooking even though desired program and time is set when the START pad is pressed. CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary interlock switch RESULT No Continuity CAUSE REMEDY Adjust or replace Oven lamp does not turn on Check continuity of secondary interlock switch Malfunction of secondary interlock switch No Continuity Adjust or replace Check D.C. voltage being supplied to RELAY (RY2) coil Failed touch Panel 0 V Replace Faulty contacts of RELAY (RY2) or open relay coil Ap

• ACP RCS10TS, Important Safety Information 8 16400009 ©2010 ACP Inc. Servicing of Grounded Products 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. Wiring A good service practice is never route wiring over terminals and/ or sharp edges. This applies to any wiring without regard to the circuit voltage. Wire installation material and thickn

• 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. 28 16400009 ©2010 ACP Inc. 5. Remove screws securing choke assembly to outer door panel. NOTE: When disassembling door, use caution to prevent deformation of slats on door f

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