Help yellow brown spots crispy leaves

First off, What is your PH?
Second, its TOO hot. you gotta cool it down before you stress it too much.
Raise the humidity
Easy answer, get an A/C, or better one if you already have one, it'll increase humidity and lower temperature
What kind of water are you using? Reverse osmosis or tap?

Thanks mate ph is 6.5 ish i use bottled water by a/c do you mean air con is it past repair if i add another fan would that help cheers

dont spray them daily?

...bottled water? like evian and fuji?
honestly, just use tap water, it'll be cool...
as for humidity, if you can, buy a humidifier if the air conditioner is broken. adding a fan will only help if its suckng the air outside(which will only help if your house is also a cooler temp), or bringing air inside(if the outside is a cooler temp).
you wont need to raise it too much when you start flowering.

whatd you spray them with? could just be burn from the spray also.

also wont a humidifier make it warmes in there

thanks for ya help mate i use a bottle of water and a bottle of diluted a+b all this started the day after i changed the cfl to hps and 18/6 to 12/12 wont the humidifier make it warmer not enough room for my aircon its to big
should i go back to 18/6 for a week or so
cheers