Just self installed an Omnilogic. It's pretty simple, but I cannot get the omnilogic and ecostar pump talking on the combus. It's 2 wires... I've tried cat5 and now have speaker wire, but neither work. Multimeter shows 2.06v DC on the ecostar combus, and 0v on pins 2 and 3 on the omnilogic. Any ideas?
Update: ecostar pump needed a firmware update to output a Hayward Unique Identifier (HUA). The firmware update is done by replacing the display (spx3400LCD). after the update, the Omnilogic works great and took about 15 minutes to configure.