GE Appliances DVM1950, Technical Service Manual

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Microwave Leakage Test
1. Place 275 ml of water in 600 ml beaker (Part #WB64X5010).
2. Place beaker in center of oven shelf.
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 a rate of one inch/second.
Test the following areas:
• Entire perimeter of door and control panel
• Viewing surface of door window
• Exhaust vents
6. Maximum leakage 4 MW/CM²
7. Record data on service invoice and microwave leakage report.
Note :
Maximum allowable leakage is 5 MW/CM².
To allow for measurement and meter accuracy 4 MW/CM² is used.
Inform the manufacturer of any oven found to have emission in excess of 5 MW/CM². Make repairs to bring
the unit into compliance at no cost to owner and try to determine cause. Instruct owner not to use oven if it
has not been brought into compliance.
Oven Performance Test
1. Measure line voltage (loaded). This is based on normal voltage variations of 108V to 132V. Low voltage
will lower output power and temperature rise.
2. Place WB64X73 ( do not use any other load or dish as results will vary from standard), beaker containing
one liter of water (1000 ml, 59°F ~ 75°F) on turntable and record the starting temperature with an
accurate thermometer.
3. Set at high power for 2 minutes and 3 seconds.
4. Turn on the oven.
5. Record end water temperature. The minimum difference between initial and ending temperature should
be
40°F @ 120 VAC .
Error Messages
Displayed Description
KEYPAD SHORTED Keypad shorted continuously for 60
seconds
OPEN STEAM SENSOR Open humidity sensor
SHORTED STEAM SENSOR Shorted Humidity sensor
Note: Error beep will sound for 4 cycles (0.5 seconds on, 0.5 seconds off, at 2000 Hz) with loud beeper volume
setting.