10.3.4. Check of switches of lamps and electric motors

1. To remove the switch.
2. The simple switch has two cable connections. In this case positive tension (+) and after inclusion on other plug is always attached to one connection too. There are switches with several plugs. In this case, by means of electrical circuitries to find out to what plug tension has to be brought.
3. To check a control lamp whether there is tension on the switch. If the lamp burns, to turn on the switch and to check on the output plug whether there is and there tension. If is available, the switch is serviceable.
4. If on the output plug there is no tension, break in the bringing chain. To check the direction of the movement of current according to the electrical circuitry, if necessary, to lay a new wire.