Been to site today and connected M-net tool on a PURY-P650YGM-A. When I went to outdoor unit the coil was a block of ice. I forced defrost and also monitored defrost with 50 minutes elaspes. Every defrost i witnessed lasted about two minutes and TH5 never reached 20c (which i set) hence why the coil is frozen. Has anyone else experienced this. Mitsi tech had a 20 minute wait and was a Friday afternoon!