Daikin RXYQ96PYDN Service Manual page 77

Special Control
7.7.2 Stop due to Malfunction
In order to protect compressors, if any of the following items has an abnormal value, the system will execute a stop with
thermostat OFF and the malfunction will be determined according to the number of retry times.
Item
1. Abnormal low pressure level
2. Abnormal high pressure level
3. Abnormal discharge pipe temperature level
4. Abnormal power supply voltage
5. Abnormal inverter current level
6. Abnormal radiator fin temperature level
62
Judgment Criteria
10.15psi
580psi
275°F
Reverse-phase power supply
16.1A: 260 sec.
199.4°F
SiUS34-801A_b
Malfunction Code
E4
E3
F3
U1
L8
L4
VRVIII R-410A Heat Pump 60Hz