189
Error Codes
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ERROR CODES
Please refer to the Safety Precautions on pages 4-7 for more detail to prevent injury or death regarding the operation and service
troubleshooting of the Multi V product.
WARNING
Error No. Description Details Causes
107
Master: 1071
Slave 1: 1072
Slave 2: 1073
Outdoor unit
fan DC link low
voltage error.
• Fan PCB DC link voltage supplied is <140V
(208-230V units) or <380V (460V units).
• Outdoor unit fan DC link voltage is <50V for
a minimum of 250μs (for both 208-230V and
460V units).
• A capacitor that is serving the ODU fan
inverter is not working properly, or the voltage
at the capacitor is out of range (low). Start di-
agnosis at the inverter socket on the outdoor
unit noise filter PCB.
1. Wiring is not installed correctly between the
inverter PCB and the fan PCB.
2. Fan PCB assembly is defective.
3. Reactor terminal contact is defective.
4. DC link terminal wiring and / or contact is
defective / disconnected.
5. Diode bridge is defective.
6. Damaged electrical condenser compo-
nent (serving capacitor) on inverter driver
board.
Is the wiring between
the fan motor and PCB
correct?
Check DC link and DC link wire connections.
ĺ5HSODFHZLULQJLIHUURUVDUHIRXQG
Yes
Is the DC link voltage
correct?
No
Recheck power and installation.
Measure DC link voltage.
ĺ&KHFN,QYHUWHU3&%LIYROWDJHLV9
230V units) or <380V (460V units).
Yes
Is the fan PCB assembly
correct?
Yes
No
Replace fan PCB assembly.
DC voltage connection.
DC voltage connected.
Images here are representative of system components. Actual component appearance
depends on model and system type.
Error No. 107
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