Keeping the tense consistent

[vcolts]

Ex:

1. The reason why it was created is to remove any risks of overheating.

2. The reason why it was created was to remove any risks of overheating.

Is the second setence the correct one?

Thanks in advance.

[Barb_D]

If you don't mind my suggestion:
It was created to remove any risk of overheating.

There is no reason at all to say "The reason it was created" when you have this type of "to" construction, and you NEVER needs to say "The reason why [something happened].

[dut_thinker]

If you don't mind my suggestion:
It was created to remove any risk of overheating.

There is no reason at all to say "The reason it was created" when you have this type of "to" construction, and you NEVER needs to say "The reason why [something happened].

Is it correct to say "the reason+why"?
I was wondering about this because my teacher told me several times not to use 'why' after 'the reason' but ' that'.

[tedtmc]

Is it correct to say "the reason+why"?
I was wondering about this because my teacher told me several times not to use 'why' after 'the reason' but ' that'.

The 'why' after 'reason' is superfluous because both mean the same thing. reason = why.
But I much prefer Barb's way of putting it - precise and concise. Why use more words than necessary?

[5jj]

Even worse is: "The reason why ... is because ..."

[emsr2d2]

The reason I am calling you is ...
not
The reason why I am calling you is ...

The reason he wrote the book was ...
not
The reason why he wrote the book was ...


And as Barb D said, you don't use "because" in these constructions either.

The reason I am calling you is that I need a favour.
not
The reason I am calling you is because I need a favour.


To echo 5jj's sentiments, the absolute worst possible sentence here would be:

The reason why I am calling you is because I need a favour!

[Barb_D]

Is it correct to say "the reason+why"?
I was wondering about this because my teacher told me several times not to use 'why' after 'the reason' but ' that'.

It seems you had forgotten your teacher's advice when you wrote the original sentence.

[Ilki]

The 'why' after 'reason' is superfluous because both mean the same thing. reason = why.

Not agreed.

I could give you several reasons why the word "why" is sometimes needed.
I could give you several reasons why the word "why" is sometimes needed.