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Component 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.

RS2240003 Rev. 0

H.V. board

Pin 1

Pin 28

Pin 1

Pin 50

Function

Test Set-Up

Meter

Setting

Probe Placement

Results

Input to H.V. board

At H.V. board

Volts

J1 pin 1 (Brown wire)
& J1 pin 2 (White wire)

Line voltage

Output to display

board

Disconnect
J5 connector,
blower runs
continuously

Volts

J5 pin 28 &
J5 pin 50

24 VDC

NOTE: For the following test, place oven in Service Test Mode (see page 21).

Relay

Function

Test Set-Up

Meter

Setting

Probe Placement

Results

K1 at
230 VAC
line voltage

Blower motor
Antenna motor
Cavity light

Disconnect
J2 connector

Ohms

J1 pin 1 (Brown wire)
& J2 pin 4

Test mode 5 off

no continuity

Test mode 5 on

< 1

Ω

K2 at
208 VAC
line voltage

Blower motor
Antenna motor
Cavity light

Disconnect
J2 connector

Ohms

J1 pin 1 (Brown wire)
& J2 pin 3

Test mode 5 off

no continuity

Test mode 5 on

< 1

Ω

Содержание ASE7000

Страница 1: ...ce Commercial Microwave Oven 2001 Models This manual is to be used by qualified appliance technicians only Amana does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person Service Manual for Amana ASE7000 ASE9000 MC23MP MC23MPT MC23MPT2 RC17S RC17SD2 RC17SED RC22S RC22S3 RC25S RC27S RC30S ...

Страница 2: ...r property damage from improper service procedures If prefroming service on your own product assume responsibility for any personal injury or property damage which may result To locate an authorized servicer please consult your telephone book or the dealer from whom you purchased this product For further assistance please contact CONSUMER AFFAIRS DEPT OR 1 319 622 5511 AMANA APPLIANCES INC CALL an...

Страница 3: ...icrowave Leakage Test Equipment 23 Procedure For Measuring Radiation Leakage 23 Measurement With the Outer Case Removed 23 Measurement With a Fully Assembled Oven 23 Record Keeping and Notification After Measurement 23 Troubleshooting Power up 24 Standby Condition 25 Cook Condition 26 Disassembly Door Handle 27 Outer Door 27 Inner Door Assembly 27 Hinge 27 Outer Case 28 Back Panel 28 Splatter Shie...

Страница 4: ...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 seal...

Страница 5: ...lid reason for this action at any time nor will it be condoned by Amana Important Safety Information 9 Microwave ovens should never be operated with Any components removed and or bypassed Any of the safety interlocks are found to be defective Any of the seal surfaces which are failing missing or damaged 10 To ensure that unit does not emit excessive microwave leakage and to meet Department of Heal...

Страница 6: ... potatoes tomatoes and similar foods before cooking with microwave energy When skin is pierced steam escapes evenly 5 Pop popcorn in microwave mode only If equipment is preheated or hot allow equipment to cool before popping popcorn or bag may ignite 6 Do not use regular cooking thermometers in equipment when cooking Most cooking thermometers contain mercury and may cause an electrical arc malfunc...

Страница 7: ...h voltage 4000 volt potential and it is extremely important that they be grounded before handling Transformer High Voltage High voltage transformer is used in this unit which supplies high voltage A C for operation of the magnetron tube High Voltage Capacitor Doubles the A C output voltage from the high voltage transformer High Voltage Diode Rectifier Is connected at the output side of the high vo...

Страница 8: ...IEC705 1700 W 2200 W 2500 W 2700 W 3000 W Power Source Voltage AC 208 230 208 230 208 230 208 230 208 230 Frequency 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz Amperage 20 A 20 A 20 A 30 A 30 A Single Phase 3 wire ground X X X X X Power Frequency 2450 MHz 2450 MHz 2450 MHz 2450 MHz 2450 MHz Power Consumption 2700 W 3200 W 3700 W 4100 W 4400 W Receptacle and Plug NEMA 6 20P NEMA 6 30P Specifications ASE7000 ASE9...

Страница 9: ...y IEC705 2200 W Power Source Voltage AC 208 230 Frequency 60 Hz Amperage 20 A Single Phase 3 wire ground X Power Frequency 2450 MHz Power Consumption 3200 W Receptacle and Plug MP 20 Amp Hubbell 320P6WM2 Specifications MC23MP MC23MPT MC23MPT2 ...

Страница 10: ...Oven Inspect oven for damage such as dents in door or 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 If oven has been stored in extremely cold area wait a few hours before connecting power Radio Interference Microwave operation may cause interference to radio television or a similar ove...

Страница 11: ...th a clean cloth sponge or nylon pad using a mild detergent diluted in warm water Use commercial degreasers if heavily soiled Do not use harsh or abrasive cleaners or cleaners containing ammonia Do not use water pressure type cleaning systems Remove excess water from cloth before wiping oven Cleaning Oven Cavity Rub vigorously with nylon scouring pad to loosen debris Wipe clean with warm damp clea...

Страница 12: ...Triac 2 left Triac 3 right Voltage Check Measure voltage from MT1 to Gate 0 8 VAC when energized If no voltage check H V board and wiring Capacitor Some unit may use more then one type of capacitor Refer to Parts Manual for correct capacitor quantity Discharge Capacitor Remove wires from capacitor terminals and connect ohmmeter set on highest resistance scale to terminals Also check between each t...

Страница 13: ... VAC 5 6 Discharge Capacitor Remove all wires from terminals Measure resistance from 230 to COM 208 to COM 230 to Ground 208 to Ground Terminal 5 to 6 Terminal 4 to Ground Less than 1 1 Ω Less than 1 Ω Infinite Infinite Less than 1 Ω Approximately 70 Ω 7 8 2 4 3 5 Interlock switch Door Closed 2 4 7 3 5 8 Primary Secondary Monitor Disconnect wires to switch With door open measure resistance from Te...

Страница 14: ...uity Top touch panel Removal of touch panel is required to perform test Continuity is indicated as 100 Ω and below 1 Pad Time Entry Power Level Stage Program Save Quantity Menu Hidden Pad Trace 5 7 5 8 5 9 6 7 6 8 7 9 8 9 Measurement Continuity Continuity Continuity Continuity Continuity Continuity Continuity Display board J1 J5 J6 J4 Pin 1 Pin 1 Pin 1 Pin 1 Side Touch Panel Connector H V board Co...

Страница 15: ... Brown wire J1 pin 2 White wire Line voltage Output to display board Disconnect J5 connector blower runs continuously Volts J5 pin 28 J5 pin 50 24 VDC NOTE For the following test place oven in Service Test Mode see page 21 Relay Function Test Set Up Meter Setting Probe Placement Results K1 at 230 VAC line voltage Blower motor Antenna motor Cavity light Disconnect J2 connector Ohms J1 pin 1 Brown w...

Страница 16: ... Test mode 2 off line voltage Test mode 2 on 0 volts K6 Magnetron 3 Bottom at 230 VAC All wires connected to H V board VAC J4 pin 4 Black wire J4 pin 6 Black wire Test mode 3 off line voltage Test mode 3 on 0 volts K7 Magnetron 3 Bottom at 208 VAC All wires connected to H V board VAC J4 pin 4 Black wire J4 pin 5 Brown wire Test mode 3 off line voltage Test mode 3 on 0 volts Two Magnetron Models Re...

Страница 17: ...ng unless testing requires power 17 RS2240003 Rev 0 Three Magnetron Models 1 1 1 1 2 2 2 2 3 3 3 3 H V System 1 H V System 2 H V System 3 Top Rear Magnetron Center Transformer Bottom Center Capacitor Diode Center Triac Top Front Magnetron Left Transformer Top Left Capacitor Diode Left Triac Bottom Magnetron Right Transformer Right Capacitor Diode Right Triac ...

Страница 18: ...ct power to oven and discharge capacitor before servicing unless testing requires power RS2240003 Rev 0 18 Two Magnetron Models 1 1 1 1 3 3 3 3 H V System 1 H V System 3 Top Rear Magnetron Left Transformer Top Capacitor Diode Left Triac Bottom Magnetron Right Transformer Bottom Capacitor Diode Right Triac ...

Страница 19: ...ent It is not practical to perform the IEC test in the field To convert the traditional power test results to the approximate IEC 705 rating take the traditional power test results and add 150 watts per magnetron for the unit being tested Example 1400 watts output using the traditional power test for model RC17S 300 watts 2 magnetrons X 150 watts 1700 Approximate IEC 705 results Always perform pow...

Страница 20: ... fan may start at any time or if oven is hot Error Codes During operation the display may show the following service codes NOTE Before scheduling service for any error codes instruct customer to unplug oven for 1 minute reconnect power and retest If unit operates properly no service call is required Display Description Corrective Action Err1 Failed H V Board Replace H V board Err2 Failed H V Board...

Страница 21: ...ltage is present check H V components and wiring Then NOTE Pads will not beep when accessing Service Test Mode STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT Toggles Magnetron 3 Bottom ON OFF Toggles Magnetron 1 Top Rear ON OFF Timer counts up to 62 seconds and unit shuts off If no Amperage check for l...

Страница 22: ...netron Hours Displays of Door Cycles with a 1 to 1 ratio rounded to the nearest ten Clears Hours and Cycles press START to activate Resets to 0 Press Display Component Evaluation STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT 5 Toggles Blower Motor Antenna Motor s Cavity Light if applicable ON OFF If no fan operation check Blower motor and wheel Antenna motor Cavity light ...

Страница 23: ...age reading must be recorded on the service repair ticket while at the customer s location Equipment Electromagnetic radiation monitor 600 cc glass beaker Procedure For Measuring Radiation Leakage Note before measuring Do not exceed meter full scale deflection Leak monitor should initially be set to the highest scale To prevent false readings the test probe should be held by the grip portion of th...

Страница 24: ...TION NORMAL Proceed to DISPLAY DIAGNOSTICS 1 No line voltage 2 Inoperative power cord 3 Inoperative fuse 4 Inoperative display board 5 Inoperative H V board 6 Broken or loose wire connection NO Power Up Error Code Appears STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT YES YES ...

Страница 25: ...rative light socket Inoperative auto transformer Broken or improper wire connections 1 2 3 4 Inoperative antenna motor Binding gears Inoperative auto transformer Broken or improper wire connections 1 2 4 Inoperative interlock switch assembly primary Inoperative H V board Broken or improper wire connections 1 2 3 NO Inoperative H V board 5 NO NO NO Yes Yes 3 STG COOK PREHEAT STANDBY ITEM POWER C M ...

Страница 26: ...e high voltage transformer 4 Oven is operating properly NOTE Shut down after cook cycle door closed factory preset at 60 seconds but can be changed with user options Shut down door open approximately 2 minutes Blower shuts down and display indicates door Flashing Broken or improper wire connections 7 Inoperative or misadjusted interlock switch assembly secondary Broken or improper wire connections...

Страница 27: ...When reinstalling hinge mounting screws keep the side screws loose and the front screws tight close door press door against oven on the hinge side and tighten side hinge mounting screws in the sequence shown below Door Handle Remove door handle by removing plactic plugs to gain access to set screws Loosen set screws 3 32 inch allen screws one located to the left of the door handle and one located ...

Страница 28: ...e Component Location Figure 1 for location 2 Remove outer case 3 Disconnect wire connectors at display board 4 Remove screws securing top touch panel to unit 5 Remove screws securing display board to top touch panel assembly 6 Disconnect touch panel connector from display board 7 Reassemble touch panel in reverse order Side Touch Panel Assembly 1 See Component Location Figure 1 for location 2 Remo...

Страница 29: ...g magnetron Bottom Magnetron 1 See Component Location Figure 2 for location 2 Remove outer case and back panel 3 Remove wires from TCO and magnetron 4 Remove screws securing bottom exhaust duct to cavity bottom 5 Lay oven on it s left side 6 Remove bottom access panel 7 Remove magnetron mounting nuts 8 Remove magnetron and exhaust duct 9 When replacing magnetron verify wire mesh gasket is reinstal...

Страница 30: ...Transformer 1 See Component Location Figure 3 for location 2 Remove outer case and back panel 3 Remove screws securing transformer to chassis 4 Pry upward and back to release transformer from chassis 5 Remove wire connections from transformer NOTE When placing transformer back into chassis Front portion of transformer must slide into base pan tabs 6 Reassemble transformer in reverse order Auto Tra...

Страница 31: ...lastic gear 5 While supporting antenna carefully pry gear from antenna shaft 6 Remove nylon washer from antenna shaft 7 Remove antenna from oven cavity NOTE Important items when re installing antenna Place nylon washer between gear and cavity Antenna Motors 1 Remove outer case from oven 2 Remove wires connected to antenna motor 3 Remove screws securing motor assembly to cavity 4 Remove motor from ...

Страница 32: ...nscrew light bulb from socket 4 Disconnect wire terminals to light socket 5 Remove screw securing light socket to light retainer 6 Reassemble light socket in reverse order Replacing Oven Light Bulb WARNING To avoid electrical shock which can cause severe personal injury or death unplug power cord or open circuit breaker to oven before replacing light bulb After replacing light bulb restore power C...

Страница 33: ...isconnect power to oven and discharge capacitors before following any disassembly procedure WARNING Component Location Figure 1 Touch Panel Top Touch Panel Side Display Module Interlock Switch Assembly Antennas Top front antenna on 3 tube ovens are blue tipped All other antennas are plain tipped ...

Страница 34: ...sconnect power to oven and discharge capacitors before following any disassembly procedure RS2240003 Rev 0 34 WARNING Figure 2 Filter Magnetrons Magnetron TCO s Splatter Shield Oven Tray Bottom Exhaust Duct Top Exhaust Duct Bottom Flow Divider Top Flow Divider Rear Flow Divider ...

Страница 35: ...al injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure WARNING Figure 3 Auto Transformer Fan Blade Capacitor Transformer High Voltage Board Back Panel Triac Oven Light Socket Terminal Block Fuse Block and Fuse Fan Motor ...

Страница 36: ... avoid the risk of electrical shock personal injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure RS2240003 Rev 0 36 WARNING This page intentionally left blank ...

Страница 37: ...A 1 RS2240003 Rev 0 Appendix A ...

Страница 38: ...rammed STG STG displays with a single number This number is the stage the oven is at in the cooking condition Up to four stages can be programmed READY READY displays when oven is ready to use POWER POWER displays during active microwave generation in the oven POWER will not display when power setting is at 0 and POWER will turn on and off when microwave energy is set at less than 100 full power Q...

Страница 39: ...ns Quantity Pad The quantity pad increases a preset cooking time by a percentage of the original cooking time The user specifies the percentage and it can be changed for individual cooking sequences Quantity can be increased up to 8 times Once pressed QTY will display with the number times the cooking time will be extended This feature is very useful for cooking multiple servings of foods such as ...

Страница 40: ...d shuts off Done displays Preprogrammed Pads To cook food using pads preprogrammed with cooking sequences 1 Open oven door and place food in oven Close door READY displays Fan and light will turn on ITEM flashes when keyboard can be set 2 Press desired pad For single pad entry press only one pad For double pad entry press the two pads in order of the double digit number for the desired cooking seq...

Страница 41: ...de 3 Press pad to be programmed or reprogrammed Display will change to review all settings for the pad The pad number that is being programmed displays below the word ITEM 4 Press TIME ENTRY to program amount of cooking time Enter desired cooking time by using numeric key pads Maximum cooking time is 60 minutes 5 Press POWER LEVEL to program level of microwave power Press POWER LEVEL again to set ...

Страница 42: ...lecting an option Pressing the STOP RESET pad will not save changes Numbered Pads Display Options Factory Settings in Bold 1 Preprogrammed Pads OP 10 OP 11 Allows 10 0 9 preprogrammed pads Allows 100 00 99 preprogrammed pads 2 Manual Time Entry OP 20 OP 21 Manual time entry cooking not allowed reprogramming pads not allowed Manual time entry cooking allowed reprogramming pads allowed 3 Reset to RE...

Страница 43: ...shes when a cooking condition can be started or programmed STG STG displays with a single number This is the stage the oven is at in the cooking condition READY READY displays when oven is ready to use POWER POWER displays during active microwave generation in the oven POWER will not display when power setting is at 0 and POWER will turn on and off when microwave energy is set at less than 100 ful...

Страница 44: ...s microwave also accepts specific time entry by using the TIME ENTRY pad Using manual time entry does not affect the programmed buttons Quantity Pad The quantity pad increases the cooking time depending upon how many items are placed in the oven The user specifies the amount of items placed in the oven after entering the product code Once pressed QTY will display along with the number of items in ...

Страница 45: ...1 for 10 through 9 for 90 5 If stage cooking is desired press STAGE and repeat steps 2 through 4 As many as 4 different stages can be programmed 6 Press START pad Oven operates and time counts down POWER COOK LEVEL and cooking time display 7 At end of cooking cycle oven beeps and shuts off done displays Preprogrammed Pads To cook food using pads preprogrammed with cooking sequences All pads come p...

Страница 46: ...s totalled is 60 minutes 8 Press PROGRAM SAVE to save the program and changes 9 To discard changes press STOP RESET before pressing PROGRAM SAVE Programming Pads Oven is shipped from the factory set for double pad programming To program the amount of time or power level setting for a pad 1 Press MENU button until desired menu number displays 2 ITEM must flash in display 3 Press PROGRAM SAVE Progra...

Страница 47: ... PROGRAM SAVE pad must be pressed after selecting an option Pressing the STOP RESET pad will not save changes Numbered Pads Display Options Factory Settings in Bold 1 Preprogrammed Pads OP 10 OP 11 Allows 10 0 9 preprogrammed pads Allows 100 00 99 preprogrammed pads 2 Manual Time Entry OP 20 OP 21 Manual time entry cooking not allowed reprogramming pads not allowed Manual time entry cooking allowe...

Страница 48: ... result in improper oven operation WARNING To avoid risk of electrical shock severe personal injury or death do not remove outer case at any time Only authorized servicer should remove outer case Open 1 Verify all units are plugged into properly grounded and polarized outlets 2 Open and close door to unit Blower fan will start and control panel will display active menu item Press menu pad until M1...

Страница 49: ...ming Display DISPLAYS DESCRIPTION Pro9 Displays when oven is in programming mode for single pad or double pad memory OP Displays when oven is in user option mode User options can then be set or specified STG Displays stage number during cooking or when programming a specific cooking stage Stage number 1 through 4 indicates the stage that is being used Numbers 1 0 Select desired menu item and quant...

Страница 50: ...en begins to cook POWER COOK LEVEL and total cooking time display as set for that pad 5 At end of cooking cycle oven beeps and shuts off Done displays Operating Notes If door is opened during heating process Q ing energy ceases Blower continues to operate Close door and press START to continue oven operation and countdown timing If RESET is pressed once while oven is operating Q ing energy ceases ...

Страница 51: ...or that pad Total cooking time all stages totalled is 60 minutes 11 Press PROGRAM SAVE pad to save the program and changes NOTE To discard changes press STOP RESET pad before pressing PROGRAM SAVE pad Programming Items To program the amount of time or power level setting for a pad 1 ITEM must flash in display If ITEM is not flashing in display open and close oven door 2 Press PROGRAM SAVE pad Prog...

Страница 52: ...sed after selecting an option NOTE Pressing the STOP RESET pad will not save changes Numbered Pads Display Options Factory Settings in Bold 1 Preprogrammed Pads OP 10 OP 11 Allows 10 0 9 preprogrammed pads Allows 100 00 99 preprogrammed pads 2 Manual Time Entry OP 20 OP 21 Manual time entry cooking not allowed reprogramming pads not allowed Manual time entry cooking allowed reprogramming pads allo...

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