Safe to charge via dryer outlet?

[powersurge]

Well, without any hardware, all you have to do is not use both the dryer and the charger at the same time??

Also, you must keep track of how many amps the car charger is using. I believe that dryer outlets use 20 or 30 amp outlets.

If it is a 20 amp outlet, you should only run a 15 amp car charger, max....

[Nubo]

I have a Blink HQ EVSE, 30 AMP, 240 Volt. Calls for hard wire on a 40 amp circuit. My old dryer plug has a 30 amp circuit breaker on it. Is this why i keep getting a red fault code? I've connected L1, L2, and Ground wires only.

No the fault is something else; the EVSE can't tell the size of the circuit breaker. However you should not be using a 30A EVSE on a 30A circuit. electrical code requires a device only use 80% of the circuit rating for sustained loads, for your protection.

[roger1818]

I have a Blink HQ EVSE, 30 AMP, 240 Volt. Calls for hard wire on a 40 amp circuit. My old dryer plug has a 30 amp circuit breaker on it. Is this why i keep getting a red fault code? I've connected L1, L2, and Ground wires only.

As others have said, you shouldn't be using a 30A EVSE on a 30A circuit. Having said that, the reason for the fault is likely because you haven't connected the neutral (white) wire. Although the car doesn't need it, the EVSE would need it if it has an iterated GFI.