Just like the title says. All outside turn signals work properly with switch and hazard light switch.

Swapped turn signal flasher with another used one-no joy.
Cleaned contacts in flasher and hazard switch-no joy.
Checked fuses, cleaned contacts of fuse block with deoxit-no joy.

I can hear flasher ticking and lights come on strong once and then not again.

New flasher?

 

New flasher arrived. New flasher solved problem.

Also created a new problem, I added LED bulbs to warning lights and now the indicated signal flasher lights up brightly, but the opposite side also lights up a small degree (I'm suspecting due to current leakage that is not enough for incandescent bulbs--annoying).

 

You will need a resistor. One (total of 2) for the front and one for the rear. RL-650 6 ohm / 50 watt. (I have 2 extras). Also the flasher has to be in correct polarity. Here is a good website to better understand the LED concept with British style electronics. http://classicautoleds.com There is info on resistors and the right type of flasher units.