Others; Troubleshooting; Error Code - Fujitsu UTY-DMMUM Operating Manual

10. OTHERS

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10-1. Troubleshooting

• In the event of a malfunction (burning smell, etc.),
immediately stop operation, turn off the electrical breaker
and consult authorized service personnel.
• Merely turning off the unit's power switch will not
completely disconnect the unit from the power source.
Always be sure to turn off the electrical breaker to ensure
that power is completely off.
Before requesting service, perform the following checks:
Symptom
CHECK Doesn't
ONCE operate
MORE at all:
Power
indicator
is blinking:
NORMAL AirÀ ow is
FUNCTION stopped:
9380221005_en.indd 28
WARNING
Items to check
• Has the circuit breaker been
turned off?
• Has there been a power
failure?
• Has a fuse blown out, or a
circuit breaker been tripped?
• Is the timer operating?
• Is key lock enabled?
• Has the circuit breaker been
turned off?
• Has a fuse blown out, or a
circuit breaker been tripped?
Power indicator
• During Heating operation,
the unit will temporarily stop
operation (between 4 and 15
minutes) as the Automatic
Defrosting mode operates.
• During Heating operation,
the unit will temporarily stop
operation (Max. 5 minutes)
a s t h e A u t o m a t i c O i l
Recovery mode operations.
• When operated in a incorrect
combination of operation
m o d e , t h e i n d o o r u n i t
stops directly and display
of corresponding indoor
u n i t s i s b l i n k i n g o n t h e
"Monitor"screen of the central
remote controller.
If the problem persists after performing these checks, or if you
notice burning smells, stop operation immediately, turn off the
electrical breaker, and consult with authorized service person-
nel.
Notice
For an error displayed on the indoor unit or the standard
remote controller, refer to the operating manual and the
installation manual for the indoor unit.

10-2. Error code

This appears automatically on the display if an error occurs.
If an error occurs, the following display will be shown.
See
If "Error code: XX" is displayed, immediately contact authorized
Page
service personnel.
Stop air conditioner operation and please consult authorized
service personnel.
8
Error code
4
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9
Error
code: XX
Contents
Remote controller communication error
En-28
8/11/2010 11:55:20 AM