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24

Troubleshooting

1. Check grounding before checking for trouble.
2. Be careful of the high voltage circuit.
3. Discharge the high voltage capacitor.
4. When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire
  from these parts and then check continuity with the AC plug removed. To do otherwise may result in a
  false reading or damage to your meter.
5. Do not touch any part of the circuit on the PCB since static electric discharge may damage this control
  panel.
  Always touch yourself to ground while working on this panel to discharge any static charge built up in your body. 

CONDITION

Microwave oven

does not work.

Inserting many plugs into one

outlet and using them at the

same time

(blown fuse or breaker)  

Microwave oven plug is not

inserted tightly.

Output power is too low.

Low AC input voltage.

Food temperature is too low.

Using metallic ware and

allowing it to touch the oven

wall.

Sparks occur.

Inconsistent intensity of

microwave by their

characteristics.

1. Use plastic wrap or lid.

2. Stir once or twice while

cooking soup, cocoa or

milk, etc.

Uneven cooking.

Ceramic ware trimmed in

gold or silver powder is used.

Avoid using other electrical

appliances when you use the

microwave oven.

Insert microwave oven plug

securely.

Use the microwave oven at

adequate line voltage.

This may not be a defect.

It is possible that the food

should be cooked for a

longer time period.

Do not use metallic ware for

cooking except that noted in

the cooking guide.

Do not use any type of

cookware with metallic

trimming.

CAUSE

REMEDY

Display “CALL SERVICE”

See Service Test Mode  page 21

to clear CALL SERVICE .

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 UNNECES-

SARY SERVICE CALL.

Содержание MenuMaster RFS Subway

Страница 1: ...1 Service Training Manual RFS Subway Models RFS 60 Hz August 2011 16400014 ...

Страница 2: ...formation 1 5 Installation 7 Specifications 8 Quick Start Reference Guide 9 11 Components 12 13 Disassembly 14 16 Performance Testing Procedures 17 18 Component Testing Procedures 19 22 Troubleshooting 23 28 Schematic Wiring Diagrams 29 32 ...

Страница 3: ...1 Important Safety Information 1 ...

Страница 4: ...n ITISTHETECHNICIANSRESPONSIBLITYTOREVIEWALL APPROPRIATESERVICEINFORMATIONBEFOREBEGINNINGREPAIRS WARNING Toavoidriskofseverepersonalinjuryordeath disconnectpowerbeforeworking servicingonappliancetoavoid electrical shock Tolocateanauthorizedservicerpleasecontact ComServ Support Center Web Site Telephone Number WWW ACPSOLUTIONS COM E Mail commercialservice acpsolutions com 1 866 426 2621 or 319 368 ...

Страница 5: ...icer is to cease repair and contacttheACPComServ Department immediatelyforfurtherdirection ACP willcontacttheproperGovernment Agency upon verification of the test results 1 Always operate the unit from an adequately grounded outlet Do not operate on a two wire extension cord 2 Beforeservicingtheunit ifunitisoperable perform themicrowaveleakagetest 3 Theovenshouldneverbeoperatedifthedoordoes not fi...

Страница 6: ...for its intended use as described in this manual Do not use corrosive chemicals or vapors in this equipment This type of oven is specifically designed to heat cook or dry food It is not designed for industrial or laboratory use 7 As with any equipment CLOSE SUPERVISION is necessary when used by CHILDREN 8 See door cleaning instructions on page A 4 of this owners manual 9 DO NOT heat baby bottles i...

Страница 7: ...ntainer 1 Do not deep fat fry in oven Fat could overheat and be hazardous to handle 2 Do not cook or reheat eggs in shell or with an unbroken yolk using microwave energy Pressure may build up and erupt Pierce yolk with fork or knife before cooking 3 Pierce skin of potatoes tomatoes and similar foods before cooking with microwave energy When skin is pierced steam escapes evenly 4 Do not operate equ...

Страница 8: ...6 RFS 60 Hz Specifications Installation Unpacking the oven Radio Interference Oven Placement Power Specification Input Power Source Output Power Source Power Consumption Cavity Dimensions Weight 2 ...

Страница 9: ... Cleaning section Place radio television etc as far as possible from oven Use a properly installed antenna on radio television etc to obtain stronger signal reception Oven Placement Do not install oven 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 life of electrical parts Do not block or obstruct oven fi...

Страница 10: ...ation Cord NEMA 5 20 Power Output Nominal microwave energy IEC705 1200 W Minimum temperature rise 12 F 6 5 C Operating Frequency 2450 MHz Power Consumption Cook Condition Microwave 1800 W Dimensions Cabinet Width 21 550 Height 14 362 Depth 20 514 Cavity Dimensions Width 14 362 Height 9 226 Depth 16 3 8 416 Weight Crated 71 lbs 32 kg Uncrated 64 lbs 29 kg ...

Страница 11: ...9 RFS 60 Hz Quick Start Reference Guide Control Panel Manual operation Programming items Qty 2X Pad Clean Filter User Options Changing options Factory presets 3 ...

Страница 12: ...n oven Close door 2 Press QTY 2X pad 3 Press desired preprogrammed pad or pad sequence 4 Oven begins cooking Displayed cooking time is the total of original cooking time and added 2X time CLEAN FILTER This oven displays CLEAN FILTER at 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 wi...

Страница 13: ...ontinuous beep until door is opened 5 beep bursts until door is opened 2 Key Beep Volume OP 20 OP 21 OP 22 OP 23 Eliminates beep Sets volume to low Sets volume to medium Sets volume to high 3 Key Beep OP 30 OP 31 Prevents beep when pad is pressed Allows beep when pad is pressed 4 Active Display OP 40 OP 41 OP 42 OP 43 15 seconds after oven door is opened keyboard disabled 30 seconds after oven doo...

Страница 14: ...12 RFS 60 Hz Components Location 4 ...

Страница 15: ...en Door Top Stirrer Motor Cavity TCO H V Capacitor Diode Magnetrons Magnetron TCO s Blower Motor Transformer H V Capacitor Diode Fuse Board Splatter Shield Top Antenna Bottom Antenna Bottom Stirrer Motor Oven Tray Suction Cup Used for aid in removing oven tray 59001235 ...

Страница 16: ...14 Disassembly Door removal Disassembly Control panel removal Wire terminals 5 ...

Страница 17: ...hinge pins at top and bottom Top hinge cap Top hinge cap 3 To reinstall door place top pin into slot first then align bottom pin 4 Reinstall top hinge cap Outer Door panel Door frame choke assembly Choke cover Latch assembly Spring Door Handle Apply thread lock compound to threads tighten side screw first Door Removal ...

Страница 18: ...o release tabs Disconnecting Wire Terminals All wire terminals are locking type terminals Proceed as follows to disconnect wire terminals Insulated terminals Grasp insulator pod and pull back DO NOT PULL ON WIRE 1 Grasp Wire Insulator Pod 2 Pull Non insulated terminals Use a small blade screwdriver to depress locking tab and pull on terminal DO NOT PULL ON WIRE 1 Release locking tab Wire 2 Pull Co...

Страница 19: ...17 Performance Testing Procedures 6 ...

Страница 20: ...rature should be approximately 60 F 16 C 2 Using the thermometer stir water for five to ten seconds measure and record the temperature T1 3 Place test container of water in the center of oven cavity and close door 4 Heat the water for a 33 second full power cycle NOTE Use a digital watch or a watch with a second hand for ovens with electromechanical timers 5 At end of the cycle remove test contain...

Страница 21: ...19 Component Testing Procedures 7 ...

Страница 22: ...ion occurs replace capacitor Terminal to Case Infinite resistance Magnetron Discharge Capacitor Remove wires from magnetron and connect ohmmeter to terminals Also check between each terminal and ground Between Terminals Less than 1 Ω Each terminal to ground measures Infinite resistance Note This test is not conclusive If oven does not heat and all other components test good replace the magnetron a...

Страница 23: ...eplace Control Board Replace Control Board Shorted or Open Keypad Test and replace if necessary s t l u s e R g n i t s e T t n e n o p m o C n o i t a r t s u l l I Interlock switch assembly Disconnect wires to switch With door open measure resistance from Top Monitor COM PK NO BL Btm Monitor COM WH NO RD Top Primary COM RD BK NC BN Btm Primary COM BK NC BL Secondary COM PK NC GN With door closed...

Страница 24: ...b 2 to CN1 Pin 3 Neutral 120 VAC Power from Oven TCO All Conditions Volts CN1 Pin 1 Black wire to Neutral 120 VAC Power to Oven Light Standby Ready Cook Volts Volts Volts CN1 Pin 4 to Pin 1 CN1 Pin 4 to Pin 1 CN1 Pin 4 to Pin 1 120 VAC 0 VAC 0 VAC Power to Blower Motor Standby Ready Cook Volts Volts Volts CN1 Pin 5 to Pin 1 CN1 Pin 5 to Pin 1 CN1 Pin 5 to Pin 1 120 VAC 0 VAC 0 VAC Secondary Interl...

Страница 25: ...23 Troubleshooting 8 ...

Страница 26: ...input voltage Food temperature is too low Using metallic ware and allowing it to touch the oven wall Sparks occur Inconsistent intensity of microwave by their characteristics 1 Use plastic wrap or lid 2 Stir once or twice while cooking soup cocoa or milk etc Uneven cooking Ceramic ware trimmed in gold or silver powder is used Avoid using other electrical appliances when you use the microwave oven ...

Страница 27: ...ock operation 8 Display obviously jumps in time while counting down 9 Display counts down too fast while cooking 10 Each indicator light does not turn on after setting cooking cycle 11 Display time of day does not reappear when cooking is finished CONDITION CHECK RESULT CAUSE REMEDY Everything works Continuity No continuity Still have trouble Defective key membrane assembly Defective PCB assembly L...

Страница 28: ...e lead connected from transformer to the high voltage capacitor and operate the unit Replace fuse Continuity Malfunction of secondary switch No continuity Check continuity of secondary switch with door opened Normal Set is good condition defective fuse only Abnormal Measure to resistance high voltage capacitor refer to page 20 2 Fuse does not blow No continuity No continuity Replace power supply c...

Страница 29: ...ctive PCB assembly Replace PCB assembly Check continuity of secondary switch with door closed Check blower motor Check oven lamp Abnormal Abnormal Normal Defectiveblower motor Defectiveovenlamp Replaceblower motor Replaceovenlamp Loose connection Connect them tightly CONDITION CHECK RESULT CAUSE REMEDY Output is low Lower than 90 of rating voltage Normal Abnormal Measure the output power Decrease ...

Страница 30: ...ge capacitor Replace high voltage capacitor Check high vol tage capacitor Abnormal Defective magnetron Replace magnetron Check magnetron Outputis fullpower whenyousetlower powerlevel Abnormal Disconnect the wire leads from relay 3 and check continuity of relay 3 Operate the unit Defective PCB assembly Replace PCB assembly NOTE Make sure the wire leads are in the correct position When Removing the ...

Страница 31: ...29 Schematic Wiring Diagrams 9 ...

Страница 32: ...30 Schematic Wiring Diagram RFS12SW2B WIRING DIAGRAM BTM PRIMARY INTERLOCK SWITCH DANGER HIGH VOLTAGE ...

Страница 33: ...31 Schematic Wiring Diagram RFS12SW2C WIRING DIAGRAM DANGER HIGH VOLTAGE ...

Страница 34: ...32 Wiring Diagram RFS12TSW BTM PRIMARY INTERLOCK SWITCH TAB 1 TAB 2 DANGER ...

Страница 35: ...33 Notes ...

Страница 36: ... 2011 ACP Inc Cedar Rapids Iowa 52404 Part No 16400014 Printed in U S A 08 11 www acpsolutions com ...

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