Hi! I’m having trouble with my water pump not engaging when I run the schedule or run manually. Water does flow from the valves, however with very low pressure due to the pump not engaging.
The Rachio controller flashes red above master valve. I also tried the old hunter controller and that caused a P error when attempting to run.
Thanks in advance for your suggestions.
@Chrisr - if two different controllers are having issues, then the thing that is in common is the pump start relay. Check the wiring to make sure there isn’t a short on the pump relay wiring. If there is still the error, then disconnect the P/MV wire to see if the system will run (albeit with reduced pressure) and not throw the error on the P/MV circuit. One last test would be to swap the P/MV wire and a zone wire (pick one), then run that zone and see if there is an error and if the error followed the P/MV wire.
