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7. TROUBLESHOOTING GUIDE
All repair activities on the machine must be carried out solely by qualified personnel who
has experience with this type of equipment.
DAIKIN is not responsible for any equipment
damage, personal injury or death caused by negligence of operators failing to comply with
these requirements. Stop the unit before troubleshooting when the unit alarms. Restart is
allowed only when the malfunction is solved completely.
7.1
Startup Troubleshooting Guide
7.1.1
Without Alarm
After a unit is started, if no alarm is generated but the compressor does not work, troubleshoot
the unit as follows:
Start-up Troubleshooting – Without Alarm
Check
whether
there
are
less
than
2.7°C
difference
in
the
leaving
water
temperature
between
the set point and the actual value shown on the screen. If the difference is less than
2.7°C,
it
means
the
unit
is
in
normal
load
control
accommodate.
If
the
difference
is
more
than 2.7°C,
compressor
will
start
automatically
and
accommodate
load.
If
the
difference
is
more
than
2.7°C
and
the
compressor
doesn’t
start,
please
get
on
with
the
next
step
If
the
controller
displays
"OFF:
All
Cir
Disabled",
enter
the
View/Set
menu
and
check
the
status of the system. If the system is in the following status, the compressor cannot be started
normally:
The unit is in the ice storage cycle (12 hours by default). Wait until
the ice storage cycle time over
The ambient temperature is too low. Wait until the ambient
temperature increases
Both systems cannot be started (refer to the next item)
The control panel disables the unit. Contact the service personnel
for help
The remote switch is turned to OFF. Turn the remote
switch to ON
The BAS switch is turned to OFF. Turn the BAS switch to ON
The time schedule is turned to OFF. Check the schedule time
The unit is in test mode. Contact the service personnel for help.
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