My thermo set it self at 24. How do I reset to fahrenheit?

Can you please be a little more specific and clear?

"My thermo set it self at 24. How do i reset to fahrenheit?"

AT 24 ?
24 WHAT ? Hours? Celsius?
Why do you want Fahrenheit? What is wrong with Celsius? :rolleyes:
What type and brand of thermostat is it?
Did it do this before?
What happened before it set it self to 24?
Since when do thermostats decide what to do?

Come on, a little more information cost at most 2 minutes of your television time...

:D :D :D :D :D

It was tampered with now its on 26 whatever that means,, I don't know,, I just want to put it back to76 cool

it was tampered with now its on 26 whatever that means ,,,,i dont know ,,,i just want to put it back to76 cool
Yeah... Fine...

But without more details on what you have there precisely, how can anyone help you ?
Please provide some system information, brand, type number of the unit, etc.

:)