[
IX
Troubleshooting ]
- 212 -
HWE0913A
GB
1. Error
Code
Open phase
2. Error definition and error detection method
An open phase of the power supply (L1 phase, L2 phase) was detected at power on.
The L3 phase current is outside of the specified range.
The open phase of the power supply may not always be detected if a power voltage from another circuit is applied.
3. Cause, check method and remedy
4102
(TJMU-A)
Cause
Check method and remedy
(1)
Power supply problem
Open phase voltage of the power supply
Power supply voltage drop
Check the input voltage to the power supply terminal block TB1.
(2)
Noise filter problem
Coil problem
Circuit board failure
Check the coil connections.
Check for coil burnout.
Confirm that the voltage at the CN02 connector is 188 V or
above.
(3)
Wiring failure
Confirm that the voltage at the control board connector CNAC is
188 V or above.
If the voltage is below 188V, check the wiring connection between
the noise filter board CN02 and control board CNAC.
P72 model
Confirm that the wiring between TB23 and INV board SC-T is put
through CT3.
P96, P120, P144 models
Confirm that the wiring between the coil L3 and TB23 is put
through ACCT3.
(4)
Blown fuse
Check F01 on the control board, F4, and F5 for a blown fuse.
->If a blown fuse is found, check for a short-circuiting or earth fault
of the actuator.
(5)
CT3/ACCT3 failure
P72 model
Replace the inverter if this problem is detected after the compres-
sor has gone into operation.
(6)
Control board failure
Replace the control board if none of the above is causing the
problem.
Summary of Contents for PURY-P120TJMU-A
Page 1: ......
Page 11: ... 2 ...
Page 25: ... 16 ...
Page 36: ... II Restrictions 27 HWE0913A GB ...
Page 50: ... II Restrictions 41 41 HWE0913A GB ...
Page 67: ... 58 II Restrictions GB HWE0913A ...
Page 69: ... 60 ...
Page 95: ... 86 III Outdoor Unit Components GB HWE0913A ...
Page 97: ... 88 ...
Page 105: ... 96 IV Remote Controller GB HWE0913A ...
Page 107: ... 98 ...
Page 125: ... 116 ...
Page 145: ... 136 ...
Page 175: ... 166 VII Control GB HWE0913A ...
Page 177: ... 168 ...
Page 203: ... 194 ...
Page 363: ... 354 IX Troubleshooting GB HWE0913A ...
Page 365: ... 356 ...
Page 411: ......