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Monitor Mode; Self-Diagnosis; Operating Tips; Troubleshooting - Fujitsu UTB-Series Operating Manual

Airstage air conditioner group remote controller

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WEEKLY TIMER
NOTES
(1) The WEEKLY timer does not operate when the HEAT timer is set if a HEAT PUMP MODEL in the air conditioning system
is operating in the cooling mode. In addition, the WEEKLY timer does not operate when the COOL or DRY timer is set if
a HEAT PUMP MODEL in the air conditioning system is operating in the heating mode.
(2) Even if the timer operation is set, the timer lamp of the indoor unit does not light up. (The timer lamp is used for
wireless remote controller only.)

MONITOR MODE

G The operation status of each indoor unit can be checked in the Monitor mode.
To enter the Monitor mode
The display automatically switches to the Monitor mode after
60 seconds if no button is pressed.
*
is not shown in the Monitor mode.
Press the Select button to select an indoor unit to display the
current status.

SELF-DIAGNOSIS

The air conditioning system must be inspected if "E✽:✽✽" (error code) appears on the Timer and Clock Display, or the opera-
tion lamp is flashing.
Stop air conditioner operation and please consult authorized service personnel.

OPERATING TIPS

Cooling/heating priority (AIRSTAGE
(VRF system Heat Pump model only))
• If another indoor unit in the same system is already oper-
ating in the cooling mode or dry mode, heating mode set-
tings cannot be performed.
• If another indoor unit in the same system is already oper-
ating in the heating mode, cooling mode or dry mode set-
tings cannot be performed.

TROUBLESHOOTING

Before requesting service, perform the following checks:
Symptom
CHECK ONCE
Does not operate at all.
MORE
If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, turn off the
electrical breaker and consult authorized service personnel.

SPECIFICATIONS

GROUP REMOTE CONTROLLER (WIRED TYPE)
MODEL
UTB- D
TM
G
Has there been a power failure?
G
Has a fuse of convertor blown out, or a circuit breaker been tripped?
G
Is the main power switch set to the OFF position?
G
Is the timer operating?
POWER
HEIGHT [mm]
DC 12 V
120
Setting display
• When a key operation is in progress,
After the operation is complete,
and then goes off.
• When
is flashing, it means that the signal is being
transmitted. During this time, key operations are disabled.
• When
is displayed there are functions for which set-
tings cannot be made.
Items to check
DIMENSIONS & WEIGHT
WIDTH [mm]
DEPTH [mm]
120
not shown
is displayed.
flashes for a minute,
WEIGHT [g]
17
160
En-6

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