Charger completely dead: no lights, no display, no response when plugged in.

Safety first: Do not repeatedly reset a breaker that trips immediately; this indicates a fault.

• 1. Check breaker: Verify that the dedicated EV charger breaker is in the ON position. If tripped, reset once. If it trips again, stop and call an electrician.
• 2. Test outlet (plug-in models): Plug a known-good device into the same outlet to confirm power is present.
• 3. Inspect input connections (hardwired): With power off at the breaker, remove the wiring cover and ensure all line and ground wires are securely clamped in the Primecom input terminal block.
• 4. Internal fuse: Some Primecom chargers include an internal replaceable fuse. With power disconnected, open the housing and check the fuse with a multimeter; replace only with the same type and rating.
• 5. Control board replacement: If supply power and fuses are good but the unit remains dead, the internal low-voltage power supply on the main control board has likely failed and the board should be replaced.