Blink EV charger shows E05 and will not charge; may be accompanied by a message about undervoltage or low line voltage.

Safety first: Turn off power before opening the charger. Use a properly rated meter for any live tests.

Steps to troubleshoot:

• Check circuit loading: Ensure the Blink charger is on a dedicated circuit of the correct amperage. Remove any other loads that may share the circuit (if miswired).
• Measure voltage under load: With a qualified person, measure line voltage at the charger while attempting to start a charge. If voltage sags significantly below spec, wiring or supply is inadequate.
• Inspect wiring gauge and length: Verify that the branch circuit wire size matches Blink installation requirements for the run length and breaker size. Long runs with small gauge wire can cause excessive drop.
• Tighten connections: With power OFF, tighten all terminal screws at the breaker and inside the Blink unit. Look for signs of overheating.
• Control board check: If voltage is stable and within spec but E05 persists, the main control board’s voltage sensing circuit may be faulty and require replacement.

Do not increase breaker size to mask undervoltage. Correct the wiring or supply issue instead.