On arrival found unit not operating,then started to operate by itself ,spoke to tech support and advised me to remove all the charge and weigh the charge back in .unit operating normal at this time 11/27 Colin- upon arrival I found unit running and no led fault codes on either indoor or outdoor unit. Remote was in dresser drawer so I advised customer to keep it in sight of unit for better performance. I also changed the fan setting to auto instead of high because unit needs to modulate in order to have best performance. I continued to run system and called tech support. They advised me that if system isn’t keeping up that we should remove charge and weigh it back in. Did not do so during visit because I do not have speculation of low charge. Room temp reached 78 and delta air temps are great. Speculation was that unit was defrosting at night and because fan speed was set to high, performance of unit was being decreased. Informed customer to keep us updated with changes. I also expl