Why no sticky? Next time I start having issues with my AC switch, I will be diving in behind my stereo and permanently fixing it.
Fixed mine! Feels good to stay cool.
Hell yeah! I had been driving with a non existent 3 and flicker 2 for years. Then 2 completely failed and 4 was starting to flicker. Every single position works now!
..., but more and more heat will be generated at the high resistance spots in the circuit until eventually something melts (or worst case, catches fire).
That's why I did this,...
My fan switch only controls the relays,... there's no power through it.
Does that reuse the existing wires from the resistor pack to the load side of the relays, and new wires from the console switch to the control side ?
Where did you mount the relays?
I haven't done it, but I'm pretty confident it would work. I'd recommend using a 2K resistor to match the performance of the solution I posted. Here are the simulated results with R48 being replaced with a 2K resistor:
The result is pretty much identical and there's no hacky wiring
The resistors on that board are all surface mount, but there's plenty of room to fit a through-hole resistor if you stand it up. Just make sure to glue it in place so it doesn't vibrate itself loose!
Ok, got the PCB out. The write up said 4.7k, the response here said 2k for the R48 resistor. I assume 2k is the revised value, but wanted to confirm.