Main House Fuse Deteriorated - Tesla charging responsible?

[poppabear]

The main house fuse is burnt and causing pulsing lights in the house. Also, the Wall Charger doesn't work.

I got my Model Y in August. I had a Tesla Wall Charger installed with 60 amp breakers and was charging at 48 amps.

Hawaiian Electric inspected the main fuse box and said it is deteriorated and should be replaced. The electrician says that main fuses last about 25 years in Hawaii. My house is 35 years old. I feel that the Wall Charger caused the deterioration. I should have used a lower charge setting.

I am using the mobile charger to charge off a wall plug on a different circuit until the fuse is fixed.

So if you are in an older house, you should not charge at the highest rate.

 

[lowtek]

Eh? You said they last 25 years, your house is 35 years old, sounds like you got a 10 year bonus. At any rate, the charger did not "deteriorate" your fuse replace it and charge at 48 amps. Your "feelings" suck at math.

 

[ohmman]

Moderator Note: Title amended.

 

[spsheridan]

Moderator Note: Title amended.

I'm curious, did you add the question mark? If so, well done!

 

[brkaus]

I think the lesson is that the entire electrical system should be evaluated when adding a new high load to a house.

The scope of the evaluation would depend on things like age of house & size of service (or specifically how large is the new load relative to the service).

An electrician should be doing this for any new installation.

 

[SmartElectric]

^ exactly

I charge my Tesla and Smart EV in a gravel floor garage made in 1920.
Obviously, I have them on modern electrical lines that I have run expressly for this purpose.
The age of the structure isn't the issue, the electrical system needs to be evaluated and weaknesses identified if you're going to be adding 50A x 240V continuous loads.

While I did charge my Smart EV on a 120V 12A outlet plug that was circa 1960 for about a week before I upgraded the electrical to breakers (formerly fuses) and modern capable and proper gauge wiring, the 12A load was well under the spec of the wiring (which was open/exposed so I knew exactly what it looked like), but the outlet was old and certainly got warm, so I upgraded in a hurry.

 

[dhanson865]

I'm curious, did you add the question mark? If so, well done!

more than just adding a question mark, the original said

"'Tesla Wall Charger deteriorated my main house fuse'"

the modified is

"Main House Fuse Deteriorated - Tesla charging responsible?"

 

[poppabear]

My message was a warning. If you are adding a wall charger and your main circuit breaker is more than 25 years, be careful. My electrical system was working fine and it went bad a month after I started charging my new Tesla. I doubt it was a coincidence.

 

[lowtek]

My message was a warning. If you are adding a wall charger and your main circuit breaker is more than 25 years, be careful. My electrical system was working fine and it went bad a month after I started charging my new Tesla. I doubt it was a coincidence.

It wasn't working fine, if it were, the extra load wouldn't have affected anything. The installation of the wall charger exposed a preexisting issue.