Sudden higher temps

[Spence]

My first three smokes I was a little concerned that the highest temp I could reach (according to my Maverick) was 226.  I had resigned myself to making do with perhaps longer cooking times.  Then on my cook yesterday I just turned the control up all the way as previous and the in a short while the Maverick was registering registering 277 degrees!  While I'm pleased by the suddenly available extra temp I'm perplexed by the sudden change.  Anyone else had this experience?

 

[UWFSAE]

Hmmm ... did you happen to record a low point?  And were you setting the smoker at 250 or a lower temp when you saw this spike?

 

[Spence]

Had it maxed out as doing so only produced highs in the 220's range previously.  Will be cooking some ribs today so will see how it does.