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I recently installed a brand new Grizzl-E Level-2 charger for my two EV's: Chevy Bolt 2017 and Chrysler Pacifica Hybrid 2021. In most cases it works great.
However sometimes it turns on steady red light and buzzer stopping charging EV in the middle of process. Or the same issue might even happen at random time while EV is not even plugged in. The only way to reset it is turning off AC breaker and turning on again in 30 seconds. Then everything goes back to normal
Charger is hooked up to split-phase 240V 60Hz via dedicated 50A breaker with three AWG-8 wires (two hots and one neutral) and has a separate AWG-10 wire for grounding. All wires are about 100 feet long from main panel connected via standard 14-50 outlet and original plug on charger
I read that issue might be grounding-related. But AWG-10 should be ok for grounding of 50A line according to NEC
Any ideas, what might be the root cause of problem and how to fix it? It's not a show stopper, but pretty annoying happening 1-2 times a week
However sometimes it turns on steady red light and buzzer stopping charging EV in the middle of process. Or the same issue might even happen at random time while EV is not even plugged in. The only way to reset it is turning off AC breaker and turning on again in 30 seconds. Then everything goes back to normal
Charger is hooked up to split-phase 240V 60Hz via dedicated 50A breaker with three AWG-8 wires (two hots and one neutral) and has a separate AWG-10 wire for grounding. All wires are about 100 feet long from main panel connected via standard 14-50 outlet and original plug on charger
I read that issue might be grounding-related. But AWG-10 should be ok for grounding of 50A line according to NEC
Any ideas, what might be the root cause of problem and how to fix it? It's not a show stopper, but pretty annoying happening 1-2 times a week