Daikin RZQ100B8V3B Service Manual page 180

Troubleshooting
1
Malfunction Code
P1
P4
PJ
U0
U2
U4/UF
U5
U8
3 3
UA
UC
4
Notes:
5
3–32
Contents/Processing
Open phase or voltage unbalance
Abnormal radiation fin temperature sensor
(outdoor unit)
Failure of capacity setting (outdoor unit)
Lack of gas malfunction
Abnormal power supply voltage
Failure of transmission (between indoor and
outdoor unit)
Failure of transmission (between indoor unit and
remote controller)
Failure of transmission (between "main" and
"sub" remote controller
Failure of fieldsetting
Address error of central remote controller
In the case of the shaded error codes, "inspection" is not displayed. The system operates, but be
sure to inspect and repair it.
1 There is a possibility of open phase power supply, check power supply also.
2 Operation when a malfunction occurs may differ according to the model.
Remarks
Either capacity data is set incorrectly, or capacity
has not been set for the data IC
Abnormal suction pipe temperature
Including malfunction of K1M, K2M
Transmission between indoor and outdoor unit is
not being correctly carried out. (Note 1, Note 2)
Transmission between indoor and remote
controller is not being correctly carried out.
Transmission between "main" and "sub" remote
controller is not being correctly carried out.
System fieldsetting error pair, twin, triple, double
twin or wrong capacity class.
Part 3 – Troubleshooting
ESIE05-03