Daikin RZQ71~125B7V3B, Service Manual, Page: 231 / 484

ESIE04-01 Troubleshooting
Part 3 – Troubleshooting 3–31
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P
In the case of the shaded error codes, “inspection” is not displayed. The system operates, but be
sure to inspect and repair it.
Notes: 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.
P1 Open phase or voltage unbalance
P4 Abnormal radiation fin temperature sensor
(outdoor unit)
PJ Failure of capacity setting (outdoor unit) Either capacity data is set incorrectly, or capacity
has not been set for the data IC
U0 Lack of gas malfunction Abnormal suction pipe temperature
U2 Abnormal power supply voltage Including malfunction of K1M, K2M
U4/UF Failure of transmission (between indoor and
outdoor unit) Transmission between indoor and outdoor unit is
not being correctly carried out. (Note 1, Note 2)
U5 Failure of transmission (between indoor unit and
remote controller) Transmission between indoor and remote
controller is not being correctly carried out.
U8 Failure of transmission (between “main” and
“sub” remote controller Transmission between “main” and “sub” remote
controller is not being correctly carried out.
UA Failure of fieldsetting System fieldsetting error pair, twin, triple, double
twin or wrong capacity class.
UC Address error of central remote controller
Malfunction Code Contents/Processing Remarks
RZQ - Final.book Page 31 Wednesday, September 8, 2004 8:40 AM