I am attempting to use the Application.Ontime timers for the first
time and am experiencing an issue that I can't seem to overcome on my
own.

When I use this timer in a fuction everything works well.

Application.OnTime EarliestTime:=RunWhen,
Procedure:=cRunWhat2, schedule:=True

In a separate function, I need to turn it off in a different
function. Currently my code looks like this:

Application.OnTime EarliestTime:=RunWhen,
Procedure:=cRunWhat2, schedule:=False.

When I run the macro, I get the following error on the false
statement:
Method 'OnTime' of object '_Application' failed

Can anyone tell me what I am doing wrong. I have triple checked that
all of my variables are declared and defined.