I have a 12.5K gallon tile pool with an Intelliflo VS 3050 (230VAC) hooked up to a NEW Intermatic T104 timer. Sometimes the timer turns the pump on, sometimes not. When I check the timer motor, its functioning properly. If I turn the power off at the circuit breaker, and remove the wires at the timer, and reinstall, then reactivate the circuit breaker, the timer activates the pump. I already replaced the 240VAC Circuit breaker at the sub box, and I had a GE Timer that gave me the same problem, so I assumed it was the timer. Could this be a problem at the electronics board on the pump? The only thing I haven't replaced is the circuit breaker at the main board.
Also, any idea what the most electrically efficient speed/time to run at? My pool is kidney shaped, a skimmer, drain, three return lines, an attached spa with three returns and a drain, and "wedding cake" stairs. I've tried running at about 1000 RPM for 10 hours, but algae begins to form, perhaps from not enough flow, so I now run at default speed 2 (1500 RPM) for the same.