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If the door release is not activating the lock then there is likely a shorted wire, open circuit or some other failed device in the circuit.


To identify where the fault is, each wired connection in the circuit needs to be tested; working from the door release progress through, including the power supply and the magnetic lock.


If the fault is with the door release then check the connection wires for continuity and for trapped wires. Check for water ingress on the wired connections. Check the polarity in the power connections and ensure the connections are connected to the proper terminals.