What did I do wrong?? Please help (Involved changing events)

Im creating a core, that activates a ton of effects once the temperature reaches 1600 degrees, and heres what I have

wait(1) 
local act = _G.actvalue -- The global value
local inuse = false -- This is neccecary only for the script to not break 

function alarmchange(button)
    if not inuse then
        inuse = true
        if act.Value == "Inactive" then
            act.Value = button.Name
            button.Text = button.Name.." Alert Enabled"
            wait(2)
            button.Text = "Disable "..button.Name.." Alert"
        elseif act.Value == button.Name then
            act.Value = "Inactive"
            button.Text = button.Name.." Alert Disabled"
            wait(2)
            button.Text = "Enable "..button.Name.." Alert"
        else
            button.Text = "Error: "..act.Value.." Alert Enabled"
            wait(2)
            button.Text = "Enable "..button.Name.." Alert"
        end
        inuse = false
    end
end

function effectactivator()
    if game.Workspace.Coretemps.Temp.Current.Value > 1600 then
    alarmchange(script.Parent.Red)
end
if game.Workspace.Coretemps.Temp.Current.Value < 1600 then
    alarmchange(script.Parent.Inactive)
end
end

game.Workspace.Coretemps.Temp.Current.Changed:Connect(effectactivator)
game.Workspace.Coretemps.Temp.Current.Changed:Connect(alarmchange)

Once the core reaches 1600 degrees, it changes the global value to "Red" which is supposed to activate the effects, but instead the effects only activate if I set the temp above 1600 before starting the server?

Not sure what I did wrong, and I know im using a global value, but I don't want to change anything that isn't directly causing things to not work.

Thanks! -Jonathox

Edit- Nobody has given me a working solution yet =[