What is the solution to error code DF in my Voltas Split AC? - Quora
What to do when you see an dF code on your ActronAir Serene Series 2 indoor unit - YouTube
What does DF on my inner air conditioner unit mean? Whenever I turn my AC into heating mode, the fan stops and then I notice that the part above the fan is
Error codes on your Samsung indoor air conditioner
What is DF on split unit? | DF error code in Blue Star AC | DF error in AC solution | HVAC - YouTube