I have a Raypak RP2100 that still heats fine for our spa. The problem is it's a 1997 model and it has the potentiometers for temperature and setting the temp is a cr@p-shoot. It's either too hot or not hot enough most of the time. Since I want to install automation on the pool, I am hoping I can interface to this heater and avoid these dials altogether or other cost-effective fixes.
Here is my quiestions:
1. Does anybody know of an automation system that will successfully control this heater?
2. If no automation available, has anybody successfully fixed the erratic temp setting without replacing the PC Board (pricey)? I planned to remove and clean it but have not done so yet.
3. Any other creative "hacks" for remote control or automation using this heater? (I'm thinking of at least on/off with Insteon or such)