Repair Procedures - Daikin VRV IV+ Service Manual

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Is the outdoor temperature
within the operating range?
Yes
No
To check for objects that may block the airflow
1 Check for the presence of objects near the indoor unit that may
block the airflow.
Is an object found that may
block the airflow?
Yes
No
To check the required space around the outdoor
unit heat exchanger
1 Check if the space around the outdoor unit heat exchanger is
sufficient. See the installation manual for the required space
specifications.
Is the space around the
outdoor unit heat exchanger
correct?
Yes
No
To check for an external power source
1 Check for the presence of an external power source. This might
cause electrical interference (electrical noise disturbance).
Is an external power source
found near the unit?
Yes
No
4.3.2

Repair procedures

To remove objects that may block the airflow
1 Remove objects that may block the airflow from the near
environment of the indoor unit.
Is the problem solved?
Yes
No
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07
Action
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Wait for the outdoor temperature
to return within the operating
range.
Action
Remove the object, see
"4.3.2 Repair procedures" on
page 139.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Action
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Create sufficient space around
the outdoor unit heat exchanger,
see "4.3.2 Repair procedures" on
page 139.
Action
Remove the external power
source, see "4.3.2 Repair
procedures" on page 139.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
4 Third party components
To create sufficient space around the outdoor unit
heat exchanger
1 Create sufficient space around the outdoor unit heat exchanger.
See installation manual for the required space specifications.
Is the problem solved?
Yes
No
To remove the external power source
1 Remove the external power source from the near environment
of the unit.
Is the problem solved?
Yes
No
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Service manual
139