Vivax ACP-09CH25GECI Service Manual page 41

Main inspection point:
Flow chart of Malfunction diagnosis
Measure voltage between
N 1and 3 of indoor
wiring block
Indoor main board error
Replace main board
of indoor unit
(2) Indoor fan does not rotate and there is no feedback
Main detection point:
Is the control panel reliably connected with the motor? Is it loose? Is the connecting sequence correct?
Is the input voltage within the normal range (measure the voltage between L and N of the wiring block XT with AC voltage
gauge.)?
Malfunction diagnosis process:
Energize the unit
and wait for 3min
Voltage > 200V? Y
N
Normal wiring? N
Y
Adjust wiring
Measure voltage
between L and N
of outdoor wiring
block
Voltage > 200V?
Y
Outdoor electric
box error
Replace outdoor
electric box
Remove malfunction
N
indoor and outdoor
wiring error
Replace indoor
and outdoor wiring