Microwave Output Power - Wolf MWD24-2 Service Manual
Drawer microwave
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Also See for MWD24-2:
- Introduction (4 pages) ,
- Troubleshooting manual (15 pages) ,
- Installation information (3 pages)
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Troubleshooting Guide
PROCEDURE LETTER
G
(Cont.)
#813632 - Revision B - December, 2009
Drawer Microwave
MICROWAVE OUTPUT POWER:
• THE OVEN SHOULD BE FULLY ASSEMBLED BEFORE ATTEMPTING THE
FOLLOWING PROCEDURE.
• HIGH VOLTAGES ARE PRESENT DURING COOK CYCLE, SO EXTREME CAU-
TION SHOULD BE OBSERVED.
Power output of the magnetron can be measured by performing a water tempera-
ture rise test. This test should only be used if above tests do not indicate a faulty
magnetron and there is no defect in the following components or wiring: This test
will require a 16 ounce (453cc) measuring cup and an accurate mercury ther-
mometer or thermocouple type temperature tester. For accurate results, the fol-
lowing procedure must be followed carefully:
1. Fill the measuring cup with 16 oz. (453cc) of tap water and measure the tem-
perature of the water with a thermometer or thermocouple temperature tester.
Stir the thermometer or thermocouple through the water until the temperature
stabilizes. Record the temperature of the water.
2. Place the cup of water in the oven. Operate oven at POWER 10(HIGH)
selecting more than 60 seconds cook time. Allow the water to heat for 60
seconds, measuring with a stop watch, second hand of a watch or the digital
read-out countdown.
3. Remove the cup from the oven and again measure the temperature, making
sure to stir the thermometer or thermocouple through the water until the maxi-
mum temperature is recorded.
4. Subtract the cold water temperature from the hot water temperature. The
normal result should be 28° to 54°F (16° to 30°C) rise in temperature. If the
water temperatures are accurately measured and tested for the required time
period the test results will indicate if the magnetron tube has low power output
(low rise in water temperature) which would extend cooking time or high
power output (high rise in water temperature) which would reduce cooking
time. Because cooking time can be adjusted to compensate for power output,
the magnetron tube assembly should be replaced only if the water tempera-
ture rise test indicates a power output well beyond the normal limits. The test
is only accurate if the power supply line voltage is 120 volts and the oven cav-
ity is clean.
5-12
(Models MWD24-2 / MWD30-2)
COMPONENT TEST
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