50
9.2.3 Fan speed out of control diagnosis
9.2.4 Open or short circuit of temperature sensor diagnosis and solution.
Yes
Replace outdoor PCB
Yes
Check the connections between
the sensors and the PCB. Are the
connections good?
Replace the sensor and check if
the errors happen again?
Is the fan motor connector and
connection good?
The unit does not work normally
Turn off the unit, rotate the cross
fan. Does it rotate freely?
No
Disassemble the connection between
fan and motor, check if the bearing is
normal. If not, change the bearing.If
yes, follow the below step.
Replace the fan motor
Yes
Replace the PCB
No
Yes
Is the voltage being applied to the fan
motor?
Yes
Shut off the power supply and turn on it 5s later
Summary of Contents for Vertu
Page 13: ...11 4 Refrigerant Cycle Diagram...
Page 15: ...13 MSV1 24HRDN1 QC2W MSV1 18HRDN1 QC2F E...
Page 16: ...14 MSV1 09HRFN1 ND2E MSV1 12HRFN1 ND0E...
Page 17: ...15 5 2 Outdoor Unit MOR 09HDN1 QC2 MOR 12HDN1 QC2...
Page 18: ...16 MOC2 18HDN1 QC2 MOF 24HDN1 QC2W...
Page 19: ...17 MOC2 18HDN1 QC2...
Page 20: ...18 MOC 09HDN1 ND2E MOC1 12HFN1 ND0E...
Page 21: ...19 MOC 09HDN1 QC8 MOC 12HDN1 QC4...
Page 22: ...20 MOA 09HDN1 QC2 MOB4 12HDN1 QC2...
Page 48: ...46 also turned off...