Most electrical systems work off of heat. You need resistance in the light bulb to make it glow. Well there is no real problem with this, but with the increase in lights on the circuit it heats up the flasher much quicker. If a heavy duty flasher is installed it will correct this problem. Electricity like water takes the path of the least resistance.
Most electrical problems are rather simple and often overlooked.
When you have a problem that you just can't solve don't be afraid to take it to a mechanic. And we can all use a little extra hair. All rights reserved.