L2502 white smoke

[Bryston]

I have l2502 with 47h, I noticed today in a cold start it will have a puff of black smoke as normal then I noticed it will have white smoke for 3-3 second then it will clear up the White smoke. It ideal fine. This is the first time I see white smoke. Is it normal
Thanks

 

[North Idaho Wolfman]

Yes if it's colder, it will do that.