OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Power surge (Lightning), now OSPi will not power up. No Fuse? › Reply To: Power surge (Lightning), now OSPi will not power up. No Fuse?
The fuse won’t do any protection under lightning power surge. The circuit board has TVS diode on each zone as well as the 24VAC line to protect the circuit. Still, if there is lightning strike, it can destroy the TVS diode. You can submit a support ticket and get the board repaired or replaced.