If you have manual tune permissions, when tuning your instrument, you may override:
During the autotune procedure, the text status lines shown beneath the Spectrum window will read "To override waiting for temperatures ready status..." followed by "To override waiting for PTFBA ready status...".
To override either of these, click the Start acquiring data icon while the corresponding message is visible in the text status line.
Alternatively, you may right click the temperature icon in the Instrument Status Dashboard, and select Override Waiting for Ready.