Is this down to induced voltages and a duff low. Turn the switch off then repeat the test.
Tutorial 3 Way Switches And 4 Way Switches
Light turns on when switch is off. One mechanical failure easy enough to recognize is an internally broken toggle where the lever inside is unable or only occasionally able to activate the contactors. Turn the switch on then touch the tester leads to both of the brass terminals on the switch and verify that the tester led goes on. It sounds like you have wired it so that when the switch is supposed be turning off the light it is actually turning on the switch and the wiring is such that it is shorting out the 115v from the. If the led goes off the switch is good and the wiring is faulty but if the led stays on the switch is bad and needs to be replaced. The flip the switch over. In order for the light to work with the switch the ceiling light needs to be connected to the switched leg conductor coming off of the switch.
This problem can be felt by touch as the plastic piece is usually loose in the switch without any spring tension. 3 the reason the light remains on is that the light is permanently connected to another hot wire in the ceiling. Confirm that the light is off. The remove the 2 screws holding the switch off. But best to shut off the breaker or fuse if you dont get along with ac current. Then turn the breaker off that controls that light.
Just a slight tingle. In most of these cases the led just lights up very weakly but also this. 120vac doesnt even bother me anymore. Led lights glow when switched off. Had a call out today to a light pulsing on and off dim every couple of seconds and the switch is in the off position its a standard pendant fitting low energy lamp and standard 1g1w switch no dimmer i measured 14v across the switched live. After switching to leds or when replacing a faulty led lamp in some cases the led continues to glow weakly after turning the light switch offobserving this effect the first time could be very surprising the light switch is in the off position and the led lamp continues to glow.