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141
YES
YES
YES
YES
NO
NO
NO
NO
OK
NG
Is backup operation of outdoor unit being set up?
Is No. of connected indoor units correct?
Is setup of indoor unit HP correct?
Is total capacity of connected
indoor units within 135%? ( 1)
For a service P.C. board, check outdoor HP setup.
(Set up jumper 9, 10, 11, and 12.)
Set up outdoor HP.
(Refer “How to exchange interface P.C. board”.)
Ensure capacity of connected
indoor units within 135% of outdoor units.
Correct HP setup.
Excessive indoor units are connected.
Correct miswiring.
Perform setup of no detection
for over capacity.
Check outdoor interface P.C. board.
Check code
[E16] / [89]
(TCC-L / AI-NET)
Check code name
Connected indoor units
capacity over
Cause of operation
1. There are 48 or more connected indoor units.
2. Capacity over of total connected indoor units.
3. Incorrect setup of indoor/outdoor capacity
Sub-code: 00 : Capacity over 01 : ~ : Number of connected indoor units
(
∗∗
∗∗
∗1) When capacity of the outdoor unit is 12HP,
up to a maximum capacity 120% of indoor
units can be connected.
YES
YES
YES
YES
NO
NO
NO
NO
Is a group control operation?
Check indoor address.
Correct indoor address.
Is there any disconnection of
connector or wiring from terminal block
of indoor unit?
Are remote controller
interconnection wires (A/B) normal?
Is the power of
all indoor units turned on?
Check indoor P.C. board.
Failure Replace
Check power connection status
of indoor unit.
Correct connection.
Check circuit wire.
Correct remote controller
interconnection wires.
Check code
[E18] / [97/99]
(TCC-L / AI-NET)
Check code name
Communication error between
indoor header and follower
Cause of operation
Regular communication between indoor header
and follower is unavailable.
YES
YES
NO
NO
Are communication lines (U1, U2)
between indoor and outdoor connected
to multiple outdoor units?
Is communication line between indoor and
outdoor connected to one unit per 1 system?
Check I/F P.C. board.
Connect communication line between indoor
and outdoor.
Connect communication line between indoor
and outdoor to one unit per 1 system.
Check code
[E19] / [96]
(TCC-L / AI-NET)
Check code name
Header outdoor units quantity error
Cause of operation
1. Misconnection of interconnection cable
between indoor and outdoor
2. Outdoor I/F P.C. board error
Sub-code: 00: No header unit 02: Two or more header units
Reference)
When the power supply of the outdoor unit is first turned
on, the check code [E19 00] is displayed until the power
supply of the indoor units are turned on. However is not
an error. When the power supply of the indoor units are
this turned on, the check code is automatically reset.