Amana CRC510T2 Service Manual Download Page 15 | Manualshive

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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 it.

RS5320010 Rev. 1

15

Illustration

Component

Testing

Results

Thermal cutout
protectors

Disconnect all wires from TCO.
Measure resistance across terminals.
1800, 1400, and 1000 Watt models
Cavity TCO
Magnetron TCO

Opens at 104

°

C

Open at 149

°

C and closed at 135

°

C

Diode assembly

Discharge Capacitor

Remove diode lead from capacitor and
connect ohmmeter.

Reverse leads for second test.

Infinite resistance should be measured
in one direction and 50,000

Ω

or more

in the opposite direction.

NOTE: Ohmmeter must contain a
battery of 6 volts minimum.

MT2

MT1

GA TE

Triac

Disconnect wires to triac.

Measure resistance from:
MT1 to MT2
MT1 to Gate
MT2 to Gate
All terminals to earth

Caution - Do not operate oven with
wire to terminal MT2 removed.

Infinite
Approximately 40

Ω

or more

Infinite
Infinite

Capacitor

Discharge Capacitor

Remove wires from capacitor terminals and
connect ohmmeter, set on highest
resistance scale to terminals.

Also check between each terminal and
capacitor case.

Between Terminals: Meter should
momentarily deflect towards zero then
return to over 5 M

Ω

. IF no deflection

occurs, or if continuous deflection
occurs, replace capacitor.

Terminal to Case: Infinite resistance

Snubber assembly

Disconnect wires to snubber.

Measure resistance across terminals.

Infinite

Magnetron

Discharge Capacitor

Remove wires from magnetron and connect
ohmmeter to terminals. Also check
between each terminal and earth.

Between Terminals: Less than 1

Ω

Each terminal to earth measures
Infinite resistance.
Note: This test is not conclusive. If
oven does not heat and all other
components test good replace the
magnetron and retest.

Blower motor

Remove all wires from motor.

Measure resistance across coil.

Approximately 30

Ω

Earth

Load

Line

Line filter

Line to Line
Load to Load
Line to Load
Any terminal to Earth

.8 M

Ω

.8 M

Ω

Continuity
Infinite

Type A

Type B

Stirrer motor

Remove all wires from motor.

Measure resistance across terminals.

Type A



Approximately 3400

Ω

Type B



Approximately 12 K

Ω

Wire harness

Test continuity of wires.

Indicates continuity

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Summary of Contents for CRC510T2

Page 1: ...e procedures done by an unqualified person Service Manual for Amana Menumaster ThisBaseManualcoversInternational MicrowaveOvenswith230V 50Hz Refer to individual Technical Sheet for information on specific models This manual includes but is not limited to the following UCRC518T2 UCRC514T2 UCRC510T2 UC1800VP UC1400VP UC1000VP CRC518T2 CRC514T2 CRC510T2 DEC1800VP DEC1400VP DEC1000VP UCRC518D UCRC514D...

Page 2: ...ossible cuts and or abrasions which can occur during servicing External Equipotential Earthing Terminal Equipment has secondary earthing terminal Terminal provides external earthing connection used in addition to earthing prong on plug Located on outside of oven back terminal is marked with symbol shown below Important Information WARNING To avoid risk of electrical shock injury or death make sure...

Page 3: ...l 26 Inner Door Window Disassembly 26 Door Disassembly 26 Door Handle 26 Hinge 26 Outer Case 26 Door Interlock Switch Adjustment Replacement 27 Back Panel 28 Amana Appliances 2800 220thTrail PO Box 8901 Amana Iowa 52204 Printed in the U S A Top Antenna Assembly gear drive models 28 Top Antenna Assembly direct drive models 28 Bottom Antenna Assembly 28 Oven Tray Removal 28 Stirrer Motor gear drive ...

Page 4: ...esponsible for any 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 5511or...

Page 5: ...ure that unit does not emit excessive microwave leakage and to meet Department of Health and Human Services guidelines check oven for microwave leakage using Narda Model 8100 8200 Holaday HI1500 HI1501 or Simpson 380M leakage monitor as outlined in instructions Maximum leakage level allowed is 4mw cm2 11 If servicer encounters an emission reading over 4mw cm2 servicer is to cease repair and contac...

Page 6: ...RS5320010 Rev 1 6 Important Safety Information ...

Page 7: ...7 RS5320010 Rev 1 Important Safety Information ...

Page 8: ...RS5320010 Rev 1 8 Important Safety Information ...

Page 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 filter or other openings on equipment 11 DO NOT store this equipment outdoors DO NOT use this product near water for example near a kitchen sink in a wet bas...

Page 10: ...ensils in oven 10 Never use paper plastic or other combustible materials that are not intended for cooking 11 When cooking with paper plastic or other combustible materials follow manufacturer s recommendations on product use 12 Do not use paper towels which contain nylonor other synthetic fibers Heated synthetics could melt and cause paper to ignite 13 Do not heat sealed containers or plastic bag...

Page 11: ...ntial 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 voltage capacitor It chang...

Page 12: ...ircuit with other equipment an increase in cooking times may be required and fuses can be blown 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 If oven has been stored in extremely cold area wait a few hours ...

Page 13: ...ove excess water before wiping equipment If desired boil a cup of water in microwave oven to loosen soil before cleaning Do not use abrasive cleansers or cleaners containing ammonia These could damage finish Never pour water into microwave oven bottom Do not use water pressure type cleaning systems Changing Oven Light Bulb CAUTION To avoid electrical shock hazard unplug power cord or open circuit ...

Page 14: ...rgent Do not use oven without filter in place Remove filter to clean Method 1 1 Open oven door and lift front of oven by pushing up on front of oven cavity ceiling 2 Slide filter down and out of oven frame Pull down on corners of filter 3 Reverse procedure to reinstall Method 2 1 Slide filter to left or right until side of filter frame clears oven frame 2 Pull side of filter frame out of oven fram...

Page 15: ...e wires from capacitor terminals and connect ohmmeter set on highest resistance scale to terminals Also check between each terminal and capacitor case Between Terminals Meter should momentarily deflect towards zero then return to over 5 MΩ IF no deflection occurs or if continuous deflection occurs replace capacitor Terminal to Case Infinite resistance Snubber assembly Disconnect wires to snubber M...

Page 16: ...tch With door open measure resistance from Terminal C to NC Monitor Terminal C to NO Primary Terminal C to NO Logic Terminal C to NO Secondary With door closed measure resistance from Terminal C to NC Monitor Terminal C to NO Primary Terminal C to NO Logic Terminal C to NO Secondary Door Closed C C C C NC NO NO NO Primary Secondary Monitor Logic Indicates continuity Infinite Infinite Infinite Infi...

Page 17: ...ity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Dial panel assembly Continuity is indicated as 100 Ω and below Each pad must be pressed to perform the following test Dial must be rotated to verify continuity A B C 1 7 6 5 4 3 8 9 Dial 25 50 75 100 Start Pad 25 50 75 100 Start Dial Dial Trace 1 3 1 4 1 5 1 6 1 7...

Page 18: ...on Additional power tests should be made if temperature rise appears marginal NOTE Low line voltage may cause lower power output temperature rise NOTE Always perform 3 tests for accuracy Change the water after each test Temperature Chart ONE MINUTE THREE SECONDS run time chart for units less than 1550 watts cooking power T Cooking T Cooking C Power Output C Power Output 7 490 15 1050 8 560 16 1120...

Page 19: ...ent must be strictly observed In addition the leakage 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 t...

Page 20: ...ys click Open fuse Open oven TCO Open top magnetron TCO 1 2 3 NO Apply power with door closed Open bottom magnetron TCO Inoperative logic switch Inoperative control board Broken or improper wire connections 4 5 6 7 Proceed to Standby condition YES Display 8 Open line filter ...

Page 21: ...on Yes Yes b READY Open oven door Oven light is on Stirrer motor operates Inoperative light bulb Inoperative light scoket Broken or improper wire connections 1 2 3 4 Inoperative stirrer motor Binding gears some models Broken or improper wire connections 1 2 3 Inoperative logic switch Inoperative control board Broken or improper wire connections 1 2 3 NO Inoperative control board NO NO NO Yes Yes D...

Page 22: ...fy by performing power test One inoperative diode One inoperative capacitor One inoperative magnetron Inoperative or misadjusted interlock switch assembly Broken or improper wire connection 1 2 3 4 5 No heat Inoperative triac Inoperative diodes Inoperative capacitors Inoperative control board Inoperative or misadjusted interlock switch assembly 1 2 3 5 6 Inoperative high voltage transformer 4 Oven...

Page 23: ... Open fuse Open oven TCO Open top magnetron TCO 1 2 3 NO Apply power with door closed Open bottom magnetron TCO Inoperative logic switch Inoperative control board Broken or improper wire connections 4 5 6 7 Proceed to Standby condition YES Display 8 Open line filter ...

Page 24: ...d to Cook Condition Yes Yes Open oven door Oven light is on Stirrer motor operates Inoperative light bulb Inoperative light socket Broken or improper wire connections 1 2 3 4 Inoperative stirrer motor Broken or improper wire connections 1 2 Inoperative logic switch Inoperative control board Broken or improper wire connections 1 2 3 NO Inoperative control board NO NO NO Yes Yes Display ...

Page 25: ... or misadjusted interlock switch assembly Broken or improper wire connection 1 2 3 4 5 No heat Inoperative triac Inoperative diodes Inoperative capacitors Inoperative control board Inoperative or misadjusted interlock switch assembly 1 2 3 5 6 Inoperative high voltage transformer 4 Oven is operating properly NOTE Shut down after cook cycle door closed 30 seconds Shut down door open approximately 5...

Page 26: ...ove door from unit and lay door on padded surface Inner Door Window Disassembly 1 Open oven door 2 Loosen screws on hingeside 3 4 turns Do not remove screws 3 Beginning at the bottom carefully insert 1 putty knife between inner and outer door Pry up on inner door to release tabs 2 clips per side Work in a clockwise direction to release all tabs see illustration below 1 2 3 4 Tabs Loosen screws onl...

Page 27: ...d the oven cavity and tighten 4 door hinge bolts 7 Remove shim on hinge side of door only 8 Open and close door observing switch activation Door is properly adjusted when primary and secondary switch plungers are fully depressed with the door closed 9 If switch requires adjustment Open oven door Loosen switch mounting screws Position interlock switch assembly all the way towards the front of the o...

Page 28: ...eat gun heat front edge of tray while at the same time appling upward pressure to release tray from oven cavity 3 Remove excess RTV 4 Using mineral spirits or non flammable degreasing solvent clean oven cavity where new RTV will make contact 5 Install tray and apply RTV to all edges of the tray remove excess RTV NOTE Allow RTV to set for 1 hour before using Stirrer Motor gear drive models 1 See Co...

Page 29: ...and remove magnetron Remove duct work screws in sequence shown 1 2 3 NOTE When replacing magnetron verify wire mesh gasket is reinstalled properly 8 Proceed to Door Interlock Switch Adjustment procedure NOTE When the line fuse is blown replace interlock switch assembly Monitor Primary Logic Secondary Mounting screws Magnetron Cutout TCO 1 See Component Location Figure 3 for location 2 Unplug power...

Page 30: ...on for location 2 Pull blade off shaft 3 When reinstalling blade push blade on shaft and rotate to insure clearance between fan blade and wire terminals Transformer 1 See Component Location Figure 3 for location 2 Unplug power cord from power source 3 Remove outer case and back panel 4 Remove screws securing transformer to chassis 5 Pry upward and back to release transformer from chassis 6 Remove ...

Page 31: ...ight bulb to cool Wear gloves when replacing light bulb Tools Needed Protective gloves Phillips screwdriver 25 watt 230 volt appliance bulb available from authorized distributor or servicer 1 Remove screw from access cover on back panel of oven exterior Slide access bracket out 2 Remove old bulb and replace with new bulb 3 Replace access cover and screw by reversing procedure in step 1 Line Filter...

Page 32: ...h disconnect power to oven and discharge capacitors before following any disassembly procedure RS5320010 Rev 0 32 Component Location Figure 1 Touch panel Antenna assembly bottom Grease Shield Diodes Interlock switch assembly Antenna assembly top Screws Antenna cradle Clip Hub Motor shaft Stop ...

Page 33: ... injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure 33 RS5320010 Rev 0 Figure 2 Magnetrons Triac Gear drive motor Spur gears Snubber Insulator Nylon spacer beveled edge down Flat washer Direct drive antenna motor assembly ...

Page 34: ... capacitors before following any disassembly procedure RS5320010 Rev 0 34 C o n t r o l l e r b o a r d F u s e C a p a c i t o r s C a v i t y t h e r m a l c u t o u t M a g n e t r o n t h e r m a l c u t o u t s T r a n s f o r m e r P o w e r c o r d M o u n t i n g b r a c k e t B l o w e r m o t o r I n s u l a t o r Figure 3 ...

Page 35: ...A 1 RS5320010 Rev 1 Appendix A ...

Page 36: ...to enter times for Manual Time Entry cooking POWER LEVEL Use to select power level Oven can heat at full or reduced power If oven power level is set to 0 oven does not heat for programmed time Adjust power in increments of 10 If no power level is selected oven operates at 100 power START Use to start Manual Time Entry program or restart interrupted cooking cycle Use to advance to next user option ...

Page 37: ...evel digit or blank space shows above COOK LEVEL in display Blank space indicates full power Pb or Pd Indicates programming mode and current menu See Programming section of manual for programming procedure bP1 Indicates menu b in programming mode and stage 1 The smaller 1 indicates pad 1 is being programmed OP 11 Indicates programming user options mode See User Options section of manual for progra...

Page 38: ... power level 8 Press START pad to save new heating time and power level in oven memory 9 Press RESET pad or close oven door to exit programming mode Multiple Heating Stages 1 Open oven door 2 Press pad 1 for approximately 5 seconds 3 Press MENU b d pad to select preprogrammed menu if necessary 4 Press desired number pad 5 Press number pads to enter desired cooking time 6 Press POWER LEVEL pad if p...

Page 39: ...ory Pads Heating Times 1 10 seconds 2 20 seconds 3 30 seconds 4 45 seconds 5 1 minute 6 1 minute 30 seconds 7 2 minutes 8 3 minutes 9 4 minutes 0 5 minutes Operating Preprogrammed Pads Equipment has 2 menus with 10 preprogrammed number pads Instructions are written for factory programmed ovens Ovens that are reprogrammed can respond differently than described below 1 Open oven door place food in o...

Page 40: ...LEVEL and current power level if other than 100 percent power 5 Press number pad to enter desired power level For example pressing 2 pad is 20 percent power 6 Press START pad Oven operates and time counts down Display shows heating time POWER COOK LEVEL Display shows POWER only when microwave energy is present If power level other than 100 percent power was programmed display shows COOK LEVEL and ...

Page 41: ...te If door is closed or RESET pad is pressed before finishing programming sequence oven exits programming mode 2 Press and hold pad 1 for approximately 5 seconds After 5 seconds signal sounds Display shows Pb or Pd indicating b or d menu 3 Press desired number pad Display shows heating time COOK LEVEL and power level if other than 100 percent power 4 Press MENU b d pad dddd and pad number show in ...

Page 42: ... seconds of heating time Allows 10 minutes of heating time 4 OP 40 OP 41 Prevents signal when pad is pressed Allows signal when pad is pressed 5 OP 50 OP 51 Allows oven to resume heating time countdown after door is opened during cycle Cancels heating time count down after door is opened during cycle 6 OP 60 OP 61 Allows use of power levels Prevents use of power levels 7 OP 70 OP 71 OP 72 OP 73 El...

Page 43: ...B 1 RS5320010 Rev 1 Appendix B ...

Page 44: ...disappears when heating with reduced power Turn to add or subtract heating time Time can be added or subtracted while cooking As time is added the time increments increase Time Increments 0 1minute 2 second increments 1 3 minutes 5 second increments 3 5 minutes 10 second increments 5 10 minutes 15 second increments Time Entry Dial 10 30 minutes 30 second increments Power Level Pads Press to select...

Page 45: ... open oven door and press START pad Repeat Feature When the oven door is open after a heating cycle is complete the oven displays the time and power level for the last heating cycle The oven retains the time set when a heating cycle begins and the last power level used before the cycle ends Close oven door and press START pad to begin another heating cycle with the same time and power level The di...

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