3/ 2021 Daikin mini split units All three units are running and working with no issues at this time. Homeowner states all three have been messing up blinking not working some at the same time,not sure what could be interfering. pressures are good but all systems need to be clean thoroughly inside and out during maintenance. All three systems have a past fault code A5 (freeze protection). In the past homeowner hits cancel then turns remote off, waiting several minutes then turning them back on to work with no issues. All 3 have been working fine for the past three days.