Diagnosing Daikin F3 Error (Gas Leak)

In this video I attend a service call where the Daikin Air Conditioner was flashing F3 on the wall controller.
F3: Compressor Discharge Pipe Over Temperature Fault.
This is stating that the discharge pipe temperature has increased greatly above normal operation levels (more than 134 Degrees Celsius). This can be caused by a fault with the compressor if the oil return to it is poor. In that case it would start to run hot. In this case it was caused by a shortage of refrigerant not cooling the compressor effectively. This fault is produced by thermistor R3T.
I located the leak on the base of the rusted out compressor. The system is 21 years old and for that reason, the customer has decided to replace the entire system.

[@zanelancaster2007]

I would have kept that a/c. I love the design of the older Daikins from 1999 to 2018.

[@maracservices]

Older Daikins are the best!

[@16valve64]

Thanks a lot for sharing your thoughts

[@Hankelmer6924]

Jajaja

[@MarcelHVAC]

Im still wondering those kind of units not having a low pressure switch

[@maracservices]

Pretty much all the brands don’t have a LP switch on their inverters. They go into a fault when the thermistor on the Discharge pipe gets to hot 🔥
I’d personally put an LP switch in if I was a manufacturer though.

[@MarcelHVAC]

@@maracservices Yep me too, i think it will save al lot of compressors also by systems on low refrignant. And there should also be a service port on the liquid line on mini split ac systems.