Dec 2, 2024 · Hi, we have a Daikin ducted system that's about three years old. Recently, it has been intermittently displaying the U4 error code. The system will often work f

Nov 26, 2014 · Don't be too hard on your installer, we're a team of dual trade electricians and refrigeration mechanics and even we can't explain Daikin U4 errors – though it doesn't help when …

Jan 12, 2010 · Similar Threads Daikin r407c 2 pipe vrv ja fault code any offers? By Contactor in forum Air Conditioning Replies: 11 Last Post: 28-07-2009, 01:26 AM

was the power fault detected at the outdoor unit or incoming power into the building? as i have a daikin reyq14 which i replaced a compressor on around a month ago which now has a u4 fault. thinking …