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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.

16025975

March

2005

Illustration Component

Test

Results

Side touch panel

Continuity is indicated as 100

Ω

and

below.

Pad

1
2
3
4
5
6
7
8
9
0
Start
Stop/Reset

Trace

3 & 5
3 & 6
3 & 7
3 & 8
3 & 9
4 & 5
4 & 6
4 & 7
4 & 8
4 & 9
5 & 6
6 & 9

Measurement

Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity

Top touch panel

Continuity is indicated as 100

Ω

and

below.

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

Pin 1

Side
Touch
Panel
Connector

H.V. board
Connector

Interlock
Connector

Top
Touch
Panel
Connector

3.5 VAC should be indicated whenever the oven is plugged into a power supply.

If voltage is present and no display is indicated, replace display board.
If no voltage is present, check wire harness connections and H.V. board.

Содержание ACE5302

Страница 1: ...icing unless testing requires power Models ACE5302 DS30E2 UACE5302 UDS30E2 UCA2000NT2 Power Source Voltage AC 230 VAC 230 VAC Amperage Single Unit 16 A 13 A Frequency 50 Hz 50 Hz Single Phase 3 wire grounded X X Plug CEE 7 7 Schuko BS1363A Power Output Microwave Nominal microwave energy IEC705 1000 Watts 1000 Watts Traditional test method 900 Watts 900 Watts Minimum temperature rise T 18ºF 10ºC 18...

Страница 2: ...re to terminal MT2 removed Infinite Approximately 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 high...

Страница 3: ...minal 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 a...

Страница 4: ...ty Continuity 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 boa...

Страница 5: ...ack wire J1 pin 2 Red wire Line voltage Output to display board Disconnect J5 connector Volts J5 pin 28 J5 pin 50 24 VDC 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 J2 pin 3 Test mode 4 of...

Страница 6: ... container to the 1000 ml line with cool tap water NOTE Water temperature 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...

Страница 7: ...imer counts up to 99 seconds Timer counts up to 99 seconds Timer counts up to 62 seconds and unit 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...

Страница 8: ...QTY LEVEL NOT READY 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...

Страница 9: ... C Cycle 2 230 C 240 C 450 C 480 C 930 C 930 C 4 230 C average temperature If the average temperature 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...

Страница 10: ...odes 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 See note above Replace H V board Err2 Failed Touch Panel Failed H V Board Replace Touch pan...

Страница 11: ...G To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power March 2005 16025975 2005 Maytag Services 11 12747601 UACE5302 UDS30E2 UCA2000NT2 ...

Страница 12: ... risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power 16025975 March 2005 2005 Maytag Services 12 12747601 DANGER HIGH VOLTAGE UACE5302 UDS30E2 UCA2000NT2 ...

Страница 13: ...W ARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power March 2005 16025975 2005 Maytag Services 13 12747701 ACE5302 DS30E2 ...

Страница 14: ...o avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power 16025975 March 2005 2005 Maytag Services 14 12747701 DANGER HIGH VOLTAGE ACE5302 DS30E2 ...

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