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.
16500054
June 2014
©2014 ACP, Inc.
6
Power Test
All ACP microwave oven power outputs are rated using the IEC705 standards. Using the IEC705 test method
requires precision measurements and equipment that is not practical to be performed in the field. Using the test
shown below will indicate if the oven performance is satisfactory.
Test equipment required:
1000 ml test container and thermometer.
Procedure
1. Fill the test container to the 1000 ml line with cool tap water as close to 60°
F / 16° C as possible.
2. Using the thermometer, stir water for ten seconds; measure, and record the temperature.
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.
5. At end of the cycle, remove test container. Using the thermometer, stir water for ten seconds and record
temperature.
6. Subtract the starting water temperature from the ending water temperature to obtain the temperature rise.
7. If the temperature rise meets or exceeds the minimum, the test is complete. If the temperature rise fails to meet
the minimum temperature rise, test the line voltage to verify it is correct. Then repeat steps 1-6 making sure to
change the water. If the temperature rise fails to meet the minimum temperature rise again the oven will require
service.
Minimum Temperature Rise at Thirty -Three (33) Seconds Run Time
Rise
Cooking
Rise
Cooking
(°F)
Power Output
(°C)
Power Output
14
°
F ............. 1400
.....................
7.5
°
C ........ 1400
19
°
F ............. 1900
.....................
10.5
°
C ...... 1900
Important Notes:
*
Convection ovens must be at room temperature and set for microwave only (or use Service Test Mode)
for best results.
*
Low line voltage will cause low temperature rise / power output.
*
Ovens must be on a dedicated circuit, properly grounded, and polarized. Other equipment on the same
circuit may cause a low temperature rise / power output.
*
This test and results are not a true IEC705 test procedure and are only intended to provide servicers with an
easy means of determining if the microwave oven cooking output is correct.
