Purchased in 2017. Been in storage for couple years. Wired it with 12v DC 2amp power supply. Followed instructions to configure remote. After SIG blinks 3 times it goes solid and I release PRG. However, pressing the remote button does not activate the relay (no click) and SIG light does not light. Remote button blinks when pressed. I don’t see any way to open it for battery check.
COM is jumpered from 12v input to relays 1 and 2. Hot output wired to relay 2 NO. DIP set to 1=ON 2=OFF