Why are the lights blinking to illuminate the stairs?
Between the first and second transient two-gang switches are installed from three places (one up key switches on, the second one our lamps), the cross ones are separated separately. When checking, I checked with an ordinary light bulb, everything worked fine.
Further, I connected these lamps at any point in the house, they flash everywhere (except for that place on the floor 2-3) there is a two key switch, as in the whole house almost. All switches without backlight.
I assume 2 causes of the problem
- Installation error;
- Somewhere, a leak is either to the ground or to the phase. See junction boxes and wiring integrity! You can ring it with a megaohmmeter for resistance.
By the way, try connecting them through a separate single-key crossover switch. Maybe the problem is still with the switches.