The IHKR/IHKA control panel is not faulty. In this case, replacing the control panel is BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > AC/Heat fan not working on e90? Google Search Search Forums HY2o0Hy.

bmw e90 heater not working