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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.

RS5320016 Rev. 0

10

Illustration Component

Test

Results

4

COM

230

220

5

6

Transformer

Discharge Capacitor
Remove all wires from terminals.

Measure resistance from:
230 to COM ................................................
220 to COM ................................................
230 to Ground.............................................
220 to Ground.............................................
Terminal 5 to 6............................................
Terminal 4 to Ground..................................

< 1.5

Ω

< 1.5

Ω

Infinite
Infinite
< 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:
Terminal 2 to 3...........................................
Terminal 4 to 5...........................................
Terminal 7 to 8...........................................

With door closed measure resistance from:
Terminal 2 to 3...........................................
Terminal 4 to 5...........................................
Terminal 7 to 8...........................................

Infinite
Infinite
Indicates continuity

Indicates continuity
Indicates continuity
Infinite

A

B

Convection blower
motor

Remove wires from motor.

Measure resistance across
terminals A and B .......................................

Approximately 20

Ω

Heating element
assembly

Disconnect wires from terminals.

Measure resistance across heating
element.

Front element

1200 W ......................

Rear element

1500 W ......................

Front element

1100 W ......................

Rear element

1100 W ......................

Indicates continuity

44

Ω

35

Ω

48

Ω

48

Ω

Resistance thermal
device (RTD)

Temperature

0

°

C (32

°

F)...................................................

177

°

C (350

°

F).............................................

Resistance

1000

Ω

1654

Ω

Lamp receptacle

Test continuity of receptacle terminals.

Indicates continuity with bulb
screwed in.

IN

OUT

Blue

Brown

Brown

Blue

Line filter

Disconnect wire from terminals.
Measure resistance of the following
terminals:

Blue to Blue............................................

Brown to Brown ......................................

< 1

Ω

< 1

Ω

«
...
8
9
10
11
12
...
»

Summary of Contents for ACE530

Page 1: ...016 Revision 0 December 2001 Service International Commercial Combination Convection Microwave Oven with 230 V 50 Hz 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 ACE530 UACE530 DS30E UDS30E UCA2000NT ...

Page 2: ...injury or property damage from improper service procedures If preforming 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 CALL and ask f...

Page 3: ...h a Fully Assembled Oven 15 Record Keeping and Notification After Measurement 15 Display Diagnostics Error Codes 16 Service Test 17 Troubleshooting Power up 19 Preheat Convection Condition 19 Microwave Condition 20 Disassembly Door Handle 21 Outer Door 21 Inner Door Assembly 21 Hinge 21 Outer Case 22 Back Panel 22 Stirrer Cover 22 RTD Resistance Thermal Device 22 Top Touch Panel Assembly 22 Side T...

Page 4: ...ng 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...

Page 5: ...5 RS5320016 Rev 0 Important Safety Information ...

Page 6: ...RS5320016 Rev 0 6 Important Safety Information ...

Page 7: ...7 RS5320016 Rev 0 Important Safety Information ...

Page 8: ...h 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 voltage capacitor It changes voltage from A C to D C It passes current in one direction and blocks it in the other Also called a...

Page 9: ... 15 Ω then reverse meter leads 30 Ω Infinite Infinite Triac 1 top is for front element Triac 2 middle is for rear element Triac 3 bottom is for microwave Measure voltage from MT1 to Gate 0 8 VAC when energized If no voltage check H V board and wiring Capacitor Discharge Capacitor Remove wires from capacitor terminals and connect ohmmeter set on highest resistance scale to terminals Also check betw...

Page 10: ...Terminal 7 to 8 With door closed measure resistance from Terminal 2 to 3 Terminal 4 to 5 Terminal 7 to 8 Infinite Infinite Indicates continuity Indicates continuity Indicates continuity Infinite A B Convection blower motor Remove wires from motor Measure resistance across terminals A and B Approximately 20 Ω Heating element assembly Disconnect wires from terminals Measure resistance across heating...

Page 11: ... Continuity Top touch panel Continuity is indicated as 100 Ω and below 1 Pad Preheat Time Entry Temp Entry Power Level Stage Program Save Hidden Pad Trace 3 4 5 7 7 8 5 8 5 9 6 7 8 9 Measurement Continuity Continuity Continuity Continuity Continuity Continuity Continuity Wire harness High voltage board to display module harness Test continuity of wires Indicates continuity Display board J1 J5 J6 J...

Page 12: ...o display board Disconnect J5 connector Volts J5 pin 28 J5 pin 50 24 VDC NOTE For the following test place oven in Service Test Mode see page 27 Relay Function Test Set Up Meter Setting Probe Placement Results K1 Cooling fan Disconnect J2 connector Ohms J1 pin 1 Black wire J2 pin 4 Test mode 5 off no continuity Test mode 5 on 1 Ω K2 Convection motor Disconnect J2 connector Ohms J1 pin 1 Black wire...

Page 13: ...ater measure and record the temperature of the water after heating time is completed 6 Subtract the starting water temperature Step 3 from the ending water temperature Step 5 to obtain the temperature rise 7 Refer to the Temperature Chart NOTES The IEC 705 test method requires precision measurements and equipment It is not practical to perform the IEC test in the field To convert the traditional p...

Page 14: ...erature is too high or too low the oven temperature offset needs to be calibrated Convection Temperature Calibration NOTE It is normal for the average oven temperature to vary from the oven setting by as much as 25 F 14 C Difference will not effect cooking since recipes are written with this difference in mind Calibration NOTE Door must be closed 1 Press HIDDEN PAD 2 Press pads 1 3 5 7 9 3 Press 0...

Page 15: ...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...

Page 16: ...ruct 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 Checksum Error See note above Replace H V board Err2 Hardware Problem See note above Verify wiring at H V board If wiring is good replace H V board May be a failed Touch Panel Verify before replacing Err3 Hardware Problem See note abo...

Page 17: ...nit shuts off STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT Component Evaluation STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT 0 Deactivated 1 Activated Displays actual Amperage Displays actual Amperage Indicates Service Mode If no Amperage check Heating element Triac 2 middle H V board relay K9 and triac 2 drive voltage Wiring If no Amperage che...

Page 18: ...LMT LMT LMT LMT LMT 6 7 8 9 0 Toggles Oven Light ON OFF Displays of Magnetron 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 Displays current Temperature OFFSET TEMP Display current oven Temperature as sensed by RTD Press Display Component Evaluation STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL N...

Page 19: ...tion Preheat Convection Condition NO NO Error Code Error Code Appears Proceed to DISPLAY DIAGNOSTICS STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT PREHEAT ON OFF STG COOK PREHEAT STANDBY ITEM POWER C M 1 2 3 4 QTY LEVEL NOT READY LMT FLASHES until unit reaches PREHEAT temperature FLASHES for 1 minute 1 Binding or inoperative blower motor 2 Inoperative cavity light 3 Inope...

Page 20: ...n No Heat 3 Inoperative triac 4 Inoperative diode 5 Inoperative capacitor 6 Inoperative H V transformer 7 Inoperative magnetron 1 Inoperative top touch panel 2 Inoperative side touch panel 3 Inoperative H V board 4 Broken or loose wire connection Press interlock switch module 1 Inoperative or misadjusted interlock switch module PREHEAT ON OFF TIME TEMP POWER LEVEL enter desired time enter 70 C ent...

Page 21: ...or against oven on the hinge side and tighten side hinge mounting screws in the sequence shown below 1 2 3 4 Door Handle Remove door handle by removing plactic plugs to gain access to set screws Loosen set screws using a 3 32 inch allen screws one located to the left of the door handle and one located on the bottom of the door handle Pointed tip Flat tip Plastic plugs Tighten first NOTE When repla...

Page 22: ...ull gently towards front of unit to release cover 5 Replace stirrer cover by fitting stirrer blade on stirrer insert Place back of stirrer cover into place align stirrer insert onto stirrer shaft Lift front of cover into position rotate mounting clip into position tighten screw CAUTION If mounting clip is loose arcing will occur Stirrer Shaft Stirrer Blade Stirrer Insert Stirrer Cover Stirrer Cove...

Page 23: ...en pull back on interlock assembly until door is snug against front oven cavity and tighten bottom screw first then top screw 4 Door will remain latched when proper adjustment is made NOTE If door is not properly adjusted display will indicate DOOR when the door is closed Side Touch Panel Assembly 1 See Component Location Figure 1 for location 2 Remove outer case 3 Remove ribbon cable from display...

Page 24: ...mounting magnetron in place NOTE Place front magnetron cover bracket in place before securing magnetron Magnetron Control and Fan Thermal Cutout TCO 1 See Component Location Figure 3 for location 2 Remove outer case 3 Remove wiring from selected thermal cutout 4 Remove screws securing thermal cutout 5 Reassemble thermal cutout in reverse order Triacs 1 See Component Location Figure 1 for location ...

Page 25: ...et mounting screw 5 Reassemble capacitor in reverse order NOTE Capacitor case must be installed into indent in back panel Heater Box 1 See Component Location Figure 3 for location 2 Remove outer case and back panel 3 Remove wires connected to heating elements convection fan and control thermal cutout 4 Remove screws securing heater box 5 Slide heater box sideways from chassis 6 Reassemble heater b...

Page 26: ...ssemble light socket in reverse order Line Filter 1 See Component Location Figure 2 for location 2 Remove outer case 3 Replace line filter and reassemble 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 CA...

Page 27: ...sassembly procedure WARNING Component Location Figure 1 Touch Panels Displays Triacs Figure 2 H V Board I S Module Touch Panel Top Touch Panel Side Triac 1 Heating Element A front Triac 2 Heating Element B rear Triac 3 Microwave Display Module Diode H V Board Capacitor Interlock Switch Assembly Rack Rack Support Filter Magnetron Fuse Block Fuse Fan Blade Line Filter ...

Page 28: ...e following any disassembly procedure RS5320016 Rev 0 28 WARNING Figure 3 Back Panel Fan Thermal Cutout Control Thermal Cutout Back Panel High Voltage Transformer Magnetron Thermal Cutout Fold diagram and place against blower bracket flange prior to assembling access panel Heater Box Power Cord Waveguide Duct Magnetron Inlet Cover ...

Page 29: ...gure 4 Stirrer Assembly Stirrer Shaft Stirrer Blade Stirrer Insert Stirrer Cover RTD Resistance Thermal Device Stirrer Cover Mounting Clip Light Lens Cover Light Lens Control Thermal Cutout Torque to 9 kg lbs 5 in lbs Convection Motor Fan Blade Heater Box Convection Fan Blade Torque to 9 kg lbs 5 in lbs Left Handed Nut Slotted Heating Element Slotted NOTE Heating assembly must be centered around t...

Page 30: ... avoid the risk of electrical shock personal injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure RS5320016 Rev 0 30 WARNING This page intentionally left blank ...

Page 31: ...A 1 RS5320016 Rev 0 Appendix A ...

Page 32: ...ev 0 A 2 International Commercial Combination Microwave and Convection Oven Keep these instructions for future reference If the equipment changes ownership be sure this manual accompanies equipment Owner s Manual ...

Page 33: ...ERGY A DO NOT attempt to operate this oven with door open since open door operation can result in harmful exposure to microwave energy It is important not to defeat or tamper with safety interlocks B DO NOT place any object between oven front face and door or allow soil or cleaner residue to accumulate on sealing surfaces C DO NOT operate oven if it is damaged It is particularly important that ove...

Page 34: ... 9 This equipment including power cord must be serviced ONLY by qualified service personnel Special tools are required to service equipment Contact nearest authorized service facility for examination repair or adjustment 10 DO NOT cover or block any openings on the equipment 11 DO NOT store this equipment outdoors DO NOT use this product near water for example near a kitchen sink in a wet basement...

Page 35: ...iquid liquid can erupt in oven or after removal from oven 2 Do not deep fat fry in oven Fat could overheat and be hazardous to handle 3 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 4 Pierce skin of potatoes tomatoes and similar foods before cooking with microwave energy When skin is...

Page 36: ...e and 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 ov...

Page 37: ...sed and cooking entries can be made Temperature is displayed in the time field Preheat not ready indicates the oven is not at preheat temperature NOT flashes while the oven heats to preheat temperature 250C STG COOK LEVEL PREHEAT NOT READY STANDBY ITEM POWER C M 88 8 1 2 3 4 Display D Display E Side Control Panel G Air Intake Filter Oven Features A B C D E G ...

Page 38: ...8 23 8 1 2 3 4 STG COOK LEVEL PREHEAT NOT READY STANDBY ITEM POWER C M 8 8 23 8 9 1 2 3 4 5 45 Item is not displayed indicating keypad will not accept entries To activate keypad open and close oven door Item will then display Preheat ready displays when oven has reached the preset preheat temperature Convection cooking only Combination cooking both convection C and microwave energy M are used Cook...

Page 39: ...M also flashes 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 STANDBY STANDBY displays when oven is turned off and also after the oven is plugged in the door is opened and then shut C M C M displays when oven is convection cooking C M C M displays when oven is cooking using both microwave energy ...

Page 40: ...an be programmed 8 Press PROGRAM SAVE to save the program and changes 9 To discard changes press STOP RESET before pressing PROGRAM SAVE STAGE PROGRAM SAVE Programming Pads Oven is shipped from the factory for single pad programming To change the oven default to double pad programming see User Option section To program the amount of time power level or temperature setting for a pad 1 Oven must be ...

Page 41: ...ADY displays To change preheat settings see Programming 2 Oven reaches preheat temperature Signal sounds and PREHEAT READY displays 3 Press selected pad ITEM must be flashing in display If not open and close door If using single pad programming press pad and oven begins automatically For double pad programming press pads in proper sequence and oven begins automatically 4 Cooking cycle begins Total...

Page 42: ...flashing To change the preheat temperature see Programming 2 Oven reaches preheat temperature Signal sounds and PREHEAT READY displays 3 Press TIME Enter desired cooking time by using numeric keypad 4 Press TEMP if cooking temperature differs from preheat temperature Enter the new temperature 5 Press POWER LEVEL To have microwave power on HIGH press the POWER LEVEL pad again H displays For a lower...

Page 43: ...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 Manual time entry cooking allowed 3 Reset to READY mode OP 30 OP 31 Opening oven door does not reset oven back to...

Page 44: ...oved to one of three positions within the oven allowing for versatility in cooking and placement of food The middle rack position is the most common Guides can also be removed for easier cleaning To remove rack guides 1 Oven cavity must be cool to touch 2 Remove oven rack by lifting up and sliding to the front of the oven 3 Apply gentle pressure by pulling upwards on the front of rack guide 4 Lift...

Page 45: ...ded Cleaning Schedule Schedule daily cleaning and clean after use Clean interior exterior door and racks according to instructions Clean spills immediately Remove oven racks and clean according to instructions Wipe dry after cleaning Clean air filter and air vents regularly to prevent overheating Cleaning Oven Exterior Clean the door and other exterior surfaces with a clean cloth sponge or nylon p...

Page 46: ...sure oven is on and preheated Open and close oven door Press pad again If oven malfunctions or shows ERR Oven control is equipped with a self diagnostic system Self diagnostic system alerts you if there is a error or problem When electronic control signals a problem follow steps listed below 1 Record number shown 2 Unplug oven wait for 1 minute and plug in oven Disconnecting electrical supply may ...

Page 47: ...Amperage 16 A 13 A Power Frequency 2450 MHz 2450 MHz Nominal Microwave Energy IEC705 1000 Watts 1000 Watts Power Consumption Combination 3400 watts Convection only 2700 watts Combination 3000 watts Convection only 2200 watts Power Cord Length 5 6 168 cm 5 6 168 cm Oven Cavity Dimensions inches cm 13 33 cm x 10 27 cm x 15 38 cm 13 33 cm x 10 27 cm x 15 38 cm Net Weight 112lbs 51 kg 112lbs 51 kg Ove...

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