Daikin RZQ100B8V3B Service Manual page 159

ESIE05-03
Troubleshooting
Heating: Indoor unit
[
Cooling: Outdoor unit
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Part 3 – Troubleshooting
wired
Is the type of
remote controller wired or
wireless?
Wireless
Is the
operation lamp
YES
of indoor unit photo-sensing
section flashing?
NO
]
NO
Does the fan rotate?
YES
YES
Is the filter soiled?
NO
Is there
YES
any item disturbing
airflow?
NO
YES
Is the heat
soiled?
exchanger
NO
Possible causes as follows:
∗ Refrigerant overcharge
∗ Mixing of air in refrigerant
system
∗ Faulty pressure switch
Is the operation
YES
controller
lamp of remote
flashing?
Troubleshooting
Diagnose based on the error
code on remote controller
Malfunction of fan motor
Check the magnetic switch
and aux. switch for fan motor
Cleaning
Remove the disturbing item
Cleaning of the heat
exchanger
After vacuum drying, charge
correct amount of refrigerant
Check the pressure switch
(S1992)
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