Charger has no power at all – display is blank, no LEDs, and no relay click when vehicle is connected.

Safety first: Before touching any wiring, turn OFF the main service disconnect if you are not certain the EV charger circuit is de-energized. Only qualified persons should open electrical panels.

• Check home breaker: Locate the dedicated breaker labeled for the Schumacher EV charger. If it is tripped, reset it once. If it trips again immediately, do not force it; there may be a short.
• Verify outlet (plug-in models): For plug-in Schumacher EV chargers, test the receptacle with another high-load device or a meter to confirm power is present.
• Inspect visible wiring: For hardwired units, visually inspect the conduit and junction box for damage. Do not remove covers unless qualified.
• Internal fuse check (qualified only): Some Schumacher models include an internal service fuse. With power OFF and covers removed per the service manual, check the fuse with a meter and replace only with the exact type and rating.
• If still dead: The internal auxiliary power supply or control board may have failed. Professional diagnosis and board replacement are required.