Daikin UATYQ75ABAY1 [21/24] 1 maintenance alarms must be reset from masks ac ad ae of the maintenance menu and they cannot be reset by

Daikin UATYQ30ABAY1 [21/24] 1 maintenance alarms must be reset from masks ac ad ae of the maintenance menu and they cannot be reset by
Original instructions
Installation manual
21
We reserve the right to make changes without any prior notice.
UATYQ*Y1
Packaged Rooftop
4P522681-1B
CODE DESCRIPTION MAIN CAUSES CHECKS AND TROUBLESHOOTING RESET
UNIT
OFF
ITEMS OFF
AL79
WARNING Circuit
2 in low pressure
prevention
Evaporation pressure of circuit
2 in heating (winter) mode is
lower than the low pressure
prevention value
Check working conditions.
A (2) No
A compressor of
circuit 2
Check evaporating pressure.
Check evaporating fans and coil.
Checkevaporatingcoilairow.
Check refrigerant charge
(1) Maintenance alarms must be reset from masks Ac-Ad-Ae of the Maintenance menu and they cannot be reset by
pressing the Alarm key
(2) The alarm is reset automatically, but to clear the alarm visualization it is necessary to press and hold the Alarm
key for at least 2 seconds.

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