Hi All,

Just wondered if anyone has encountered the problem of VRV II systems (2 Pipe) failing the initial refrigerant check function for no obvious reason. The first time this happened to me I imediatley put the Service Checker on and proved the system to be running fine. I later found that if the system is run in full heating mode for 20-30 mins before running the test procedure, it passes the test straight away. Daikin say that the 1st test often fails anyway but the second one should pass (assuming there's no wiring errors obviously) but Ive had some systems which never pass the test but perform fine.