Hazard lights.

Unfortunately the car broke down again yesterday. ops:
When i put on the hazard lights only the left hand side of the car worked……the right never flashed at all.
All the indicators work normally….so why just the one side.
It took a few attempts for them to work as every time i pressed the switch all you heard was the relay buzzing…….i replaced it with another 2 and they did the same also.
Any bright ideas folks?

is the switch working correctly ?

I thought it might be the switch.  If you disconnect the hazard switch the indicators will not flash!

Thanks guys.
I replaced the switch and all works perfect now.