Hey there, sorry to hear you’re experiencing trouble with your Wheelock ELSPKRC-N strobe. One common issue that could cause improper flashing is a loose connection between the strobe and the wiring. Make sure all connections are secure and tight. Additionally, check the power source to ensure it’s supplying the correct voltage to the strobe. If the connections and power are fine, it could indicate a fault within the strobe itself, in which case it may need to be replaced or repaired. If you’re still having trouble after checking these things, feel free to reach out for further assistance.