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View Full Version : mitsi heavy industries power but no LED



jakeh83
25-01-2015, 04:08 PM
Hey guys, i was called out today to two mitsi units interconnected remote (2 evaps and 2 condensers). I managed to get one started was going out on hp but im guessing they have had it running constantly and its been compensating for the other. Anyway the unit that i couldnt get my head round had both power to the indoor and outdoor at correct voltage but no LEDs lit up on either? Power is coming in and out of pcbs but no response from condenser, i even connected the remote to unit seperatley to see if it would flag up anything but even the remote would not display? First thought is inverter board blown but surley the LEDs would be on?

install monkey
25-01-2015, 04:51 PM
whats the model number?, have you got 30v pulsed signal on terminal 3