OpenSprinkler › Forums › Hardware Questions › Controller crashes after 5 minutes activating sprinkler › Re: Re: Controller crashes after 5 minutes activating sprinkler
Can you unplug the valves (either by unplugging the common terminal or the station terminals) and test again? It’s possible that the crashing may be caused by defective solenoid (also see the previous thread on this board). The other possibility is that if the ambient temperature is high, the resistance on the PTC fuse may increase significantly that blocks the power supply. If that’s the reason, I suggest replacing the PTC fuse or simply solder a wire across the two pins of the PTC to bypass it.