Daikin ERQ Service Manual page 170

Troubleshooting by Remote Controller
Malfunction
code
Outdoor Unit LA
LC
P1
System U0
U1
U2
U3
U4
U5
U5
U7
U8
U9
UA
UC
UE
UF
UH
The system operates for malfunction codes indicated in black squares, however, be sure to check and repair.
160
Operation
lamp
Malfunction of power unit
c
Malfunction of transmission between inverter and control PC board
c
High voltage of capacitor in main inverter circuit.
c
Low pressure drop due to refrigerant shortage or electronic expansion
w
valve failure
Reverse phase / open phase
c
Power supply insufficient or instantaneous failure
c
Check operation is not completed.
c
Malfunction of transmission between AHUs and outdoor units
c
Malfunction of transmission between remote controller and AHU
x
Failure of remote controller PC board or setting during control by remote
c
controller
Malfunction of transmission between outdoor units
c
Malfunction of transmission between main and sub remote controllers
c
(malfunction of sub remote controller)
Malfunction of transmission between AHU and outdoor unit in the same
c
system
Excessive number of AHUs
c
Address duplication of central remote controller
w
Malfunction of transmission between central remote controller and AHU
c
System is not set yet
c
Malfunction of system, refrigerant system address undefined
c
w
Malfunction contents
: http://splitoff.ru/tehn-doc.html
ESIE09-05
: ON x : OFF c : Blink
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Troubleshooting