A Level 2 home EV charger is a high-power electrical device that also includes connectivity features, so wear is concentrated in the cable/connector, internal contactors, and control electronics. Common issues include cracked or overheated connectors, cable strain damage, failed relays/contactors, and Wi-Fi/app pairing problems.
Repair can make sense when the issue is installation-related (breaker sizing, wiring torque, GFCI compatibility) or when a replaceable cable/handle component can be serviced under the threshold. Replacement is often safer when there are signs of overheating at the connector, repeated charging interruptions that aren't explained by the vehicle, or internal faults that require major board replacement.
Because charging equipment is safety-critical, any heat damage, arcing, or persistent error codes should push toward replacement even if a repair quote is near the threshold. Also consider future-proofing: if you expect higher-amp charging needs or different connector standards, replacement might be justified earlier.