remove ashtray, you will see some small screws at the bottom of the wood panel. Remove these and pry forward, gently you will see how to get at pushbutton unit from there
Before you do that, are you getting any heat?
Can you jump start it by pushing defrost button
How many miles ?
Is your cabin intake working?
Can you get the fan going by thumping the bottom of it?
Your issue may not be in the PB unit. More details the better here, good luck
__________________
Ron
2015 Porsche Cayman - Elizabeth
2011 Porsche Cayman - Bond,James Bond
Sadly MERCEDESLESS - ALways LOOKING !
99 E320
THE Queen Mary - SOLD
62 220b - Dolly - Finally my Finny! Sadly SOLD
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
19 BMW X5 - Heaven on Wheels
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace