Installed Vortex II fan today
Installed Vortex II fan in the bathroom today. I did receive instructions... they weren't very good. Mostly useless. It also came with the rotary power knob electrical box not installed. Simple snap t...
Forum Discussion
Blacklane wrote:
I installed a Vortex II, but I had heard about reliability problems. By inspecting the circuit board, it was obvious that the big, heavy resistors could never hold-up in a high-vibration and shock environment of an RV. So I under-filled the resistors with silicon to support them better. This is actually a pretty common practice in electronics; I don't know why Vortex doesn't do it. It's been 5 seasons with no problems yet.
I tried a PWM speed controller on my old single-speed Vortex, but noticed that it had a lot of parasitic current draw, even when turned off. The one I used also made an objectionable high-pitch noise when it was on. I decided not to use it. Instead, I installed it in my stove vent fan circuit downstream of the switch, and I love it there.
Putting silicon under resisters might be a bad idea, as they produce heat.
The first PWM that I tried did cause noise so I bought a different model. There is no parasitic draw because there is an on-off switch, turning it down till the motor stops is not the correct usage.
