Even an amateur troubleshooter can check for certain problems, trying to catch them before major repair work becomes necessary. For example, no great level of skill must be acquired, before someone can look for loose terminal connections. It is also easy to learn how to match specific problems with the name of the component that seems to be malfunctioning. For instance, if a microwave oven keeps blowing fuses, it is time to check the door switch. If the door switch is not working right, that could be the result of a failed capacitor. On the other hand, it might signal the presence of a bad diode.
Why the troubleshooter might need a special tool
Suppose that those people that have been using the microwave notice that it is cooking slowly or unevenly. That failure could be explained by one of three possible problems. Testing for two of those problems cannot be done easily by a troubleshooter. Testing for the third of those problems can, if the troubleshooter’s tool kit contains a special tool.
If there is an issue with the electrical service breaker, then that could explain the oven’s slow or uneven cooking pattern. If the turntable motor has malfunctioned, then that too could cause the food to cook slowly or unevenly. Even the most skilled troubleshooter might struggle to deal with an electrical service breaker or a malfunctioning turntable motor. The source of the third possible problem would be the outlet supplying power to the microwave oven. An outlet can be tested, but only if the tester has access to a multimeter. Before the test begins, the multimeter should be on the AC scale. The meter’s user must then grasp the insulated portion of the meter’s probes.
Having grasped those probes, the tester/troubleshooter should put one probe in each of the two spots in the outlet. That will cause the scale to show a reading. The reading should be noted and recorded. In order to avoid more problems, the two probes must then be removed gently. Once that task has been completed, it is time to study the recorded reading. If the voltage on that reading is more than 115 volts, then there is a problem with the outlet.
The procedure described above can be used to solve more than one issue. A bad outlet could explain an oven’s failure to run at all. In that case, the reading on the multimeter’s scale would be more than 10% of the normal voltage.
A sign that it is time to call a repair technician
If a microwave does not run at all, it does not cook, and its turntable does not move. Suppose, though that the same appliance runs but does not cook. That could indicate a problem with the magnetron. The appliance repair technicianin Brampton that must deal with a magnetron should have completed a recognized training program.