GE 31 41079 Mini Manual

MICROWAVE OVEN HOODS

IMPORTANT SAFETY NOTICE

THIS INFORMATION IS INTENDED FOR USE BY INDIVIDUALS POSSESSING ADEQUATE BACKGROUNDS IN ELECTRICAL, ELECTRONIC AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO REPAIR A MAJOR APPLIANCE MAY RESULT IN PERSONAL INJURY AND PROPERTY DAMAGE. THE MANUFACTURER OR SELLER CANNOT BE RESPONSIBLE FOR THE INTERPRETATION OF THIS INFORMATION, NOR CAN IT ASSUME ANY LIABILITY IN CONNECTION WITH ITS USE.

DISCONNECT POWER BEFORE SERVICING. IMPORTANT-RECONNECT ALL GROUNDING DEVICES

ALL PARTS OF THIS APPLIANCE CAPABLE OF CONDUCTING ELECTRICAL CURRENT ARE GROUNDED. IF GROUNDING WIRES, SCREWS, STRAPS, CLIPS, NUTS OR WASHERS USED TO COMPLETE A PATH TO GROUND ARE REMOVED FOR SERVICE, THEY MUST BE RETURNED TO THEIR ORIGINAL POSITION AND PROPERLY FASTENED.

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY.

• A. IF OVEN IS OPERABLE, PERFORM MICROWAVE EMISSION CHECK PRIOR TO EXAMINING THE UNIT.

2. OPERATED WITH THE DOOR OPEN. B. DO NOT OPERATE OR ALLOW THE OVEN TO BE

• C. IF THE OVEN OPERATES WITH THE DOOR OPEN: 1. INSTRUCT THE USER NOT TO OPERATE THE OVEN. 2. CONTACT THE MANUFACTURER AND THE CENTER FOR DEVICES RADIOLOGICAL HEALTH IMMEDIATELY.

4. MAGNETRON. MICROWAVE OVENS (MWOs) BEFORE ACTIVATING THE D. CHECK THE FOLLOWING SAFETY ITEMS ON ALL
5. INTERLOCK OPERATION
6. PROPER DOOR CLOSING
7. SEAL AND SEALING SURFACES

(ARCING, WEAR AND OTHER DAMAGE)

4. DAMAGE TO OR LOOSENING OF HINGES AND LATCHES
5. EVIDENCE OF DROPPING OR ABUSE
6. ANY SERVICE TEST OR INSPECTION WITHIN THE MICROWAVE GENERATING COMPARTMENTS, CHECK THE MAGNETRON, WAVE GUIDE AND CAVITY FOR PROPER ALIGNMENT, INTEGRITY AND CONNECTIONS. E. BEFORE TURNING ON MICROWAVE POWER FOR
7. IN THE INTERLOCK MONITOR, DOOR SEAL AND MICROWAVE GENERATION AND TRANSMISSION SYSTEMS SHALL BE REPAIRED, REPLACED OR ADJUSTED BY PROCEDURE DESCRIBED IN THIS MANUAL BEFORE THE OVEN IS RELEASED TO THE OWNER. F. ANY DEFECTIVE OR MISADJUSTED COMPONENTS

• G. A MICROWAVE LEAKAGE CHECK TO VERIFY COMPLIANCE WITH THE FEDERAL PERFORMANCE STANDARD SHOULD BE PERFORMED ON EACH OVEN PRIOR TO RELEASE TO THE OWNER.

GROUNDING SPECIFICATIONS

Leakage Current 0.5 mA. (Max.) Ground Path Resistance 0.14 ohm (Max.)

INSTALLATION REQUIREMENTS

ELECTRICAL

MWO Power

Power Source

Line Current

Over Current Protection

• Requires 120 volt, 20 Amp. parallel, grounded separate

circuit.

Working Voltage

1000 Watts

14.5 Amps. (1700 Watts)

120 VAC, 60 Hz.

20 Amps*

108-132 VAC

MICROWAVE LEAKAGE TEST

1. Place 275 ml. water in 600 ml. beaker (WB64 x 5010).
2. Place beaker in center of oven glass.
3. Set meter to 2450 MHz scale.
4. Turn 'on' for 5 minute test.
5. Hold probe perpendicular to surface being tested and scan surfaces at rate of one inch/sec.
6. Test the following areas:

• Entire perimeter of door and control panel
• Viewing surface of door window
• Exhaust vents

6. Maximum leakage 4 mW/cm 2
7. NOTE: Maximum allowable leakage is 5 mW/cm 2

4 mW/cm is used to allow for measurement and meter accuracy. 2

Inform the manufacturer of any oven found to have emission in excess of 5 mW/cm. 2 Make repairs to bring the unit into compliance at no cost to owner and try to determine cause. Instruct owner not to use oven until it has been brought into compliance.

TO PREVENT ELECTRICAL SHOCK, USE EXTREME CAUTION WHEN DIAGNOSING OVEN WITH OUTER CASE REMOVE D AND POWER "ON". THE HIGH VOLTAGE SECTION OF THE POWER SUPPLY, INCLUDING FILAMENT LEADS, HAVE THE POTENTIAL WITH RESPECT TO GROUND TO REACH 4000 VOLTS!

HIGH VOLTAGE CAPACITOR

The high voltage capacitor has an internal shunt resistor to automatically discharge the capacitor when the oven turns 'off'. Under normal operation the capacitor should fully discharge within 30 seconds.

WARNING

ALWAYS BE CERTAIN THE CAPACITOR IS DISCHARGED BEFORE SERVICING. DISCHARGE BY PLACING AN INSULATED HANDLE SCREW DRIVER BETWEEN THE DIODE CONNECTION AND OVEN CHASSIS GROUND.

PERFORMANCE TEST

1. Measure line voltage( loaded). This test is based on normal voltage variations of 108V to 132V. Low voltage will cause low output power and temperature rise.
2. Place WB64 X0073 beaker containing one liter of water (1000ml, 55°F~75°F) on turntable and record the starting water tempreture with an accurate thermometer.

· TECHNICAL DAT A SHEET ·

(DO NOT USE ANY OTHER LOAD OR DISH AS RESULT WILL VARY FROM STANDARD !)

3. Set at HIGH power for 2 minutes, and 3 sec.

4. Turn on the oven.

5. Record end water temperature. The minimum difference between the initial and ending temperature should be: 30°F @ 120 V.

INTERLOCKS (DOOR Latch Switches)

Interlocks are designed as follows:

Primary - T op switch operated by top latch pawl connected to line (L) leg.

HOW TO TEST INTERLOCKS

1. Disconnect power, open control panel, and discharge capacitor.

2. Check Continuity of Com and N.O.:

• Door Closed - 0 Ω

• Door Open -

∞ Ω

MONITOR SWITCH

The monitor switch B is located between the top and bottom interlocks. The monitor switch is operated indirectly by the bottom latch pawl.

HOW TO TEST MONITOR

1. Disconnect power, open control panel, and discharge capacitor.
2. Disconnect monitor switch leads, and test at terminals: · Door Closed -∞ Ω

• Door Open - 0 Ω

3. Reconnect switch wiring.
4. Test Circuit Operation:

A) Connect temporary jumper across relay contacts and primary switch to simulate shorted switch contacts. Locate convenient connections in circuit to be certain COM and

N.O. terminals are used.

B) Connect Ohm meter