Mitsubishi Electric PUHY-P168, Руководство по обслуживанию, Страница: 277 / 404

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[
IX
Troubleshooting ]
7102 Outdoor unit Error in the number of
connected units
The number of connect-
ed indoor units is "0" or
exceeds the allowable
value.
(1) Number of indoor units
connected to the outdoor
terminal block (TB3) for in-
door/outdoor transmission
lines exceeds limitations
described below.
(2) Disconnected transmis-
sion line of the outdoor unit
(3) Short-circuited transmis-
sion line
When (2) and (3) apply,
the following display will
appear.
ΠIn case of M-NET remote
controller
-> Nothing appears on
the display as no power is
supplied to the remote
controller.
ΠIn the case of MA remote
controller
-> "HO" will blink.
1) Check whether the number of
units connected to the outdoor
terminal block (TB3) for indoor/
outdoor transmission lines does
not exceed the limitation. (See
(1) and (2) on the left.)
2) Check (2) - (3) on the left.
3) Check whether the transmission
line for the terminal block for
centralized control (TB7) is not
connected to the terminal block
for the indoor/outdoor transmis-
sion line (TB3).
7105 Outdoor unit Address setting error
Erroneous setting of OC
unit address
Erroneous setting of OC unit
address
The address of outdoor unit is
not being set to 51 - 100. Check that the address of OC unit is
set to 51- 100.Reset the address if it
stays out of the range, while shutting
the power source off.
7106 OA processing
unit Attribute setting error MA remote controller intended
for use with indoor units, such
as an MA remote controller, is
connected to the OA process-
ing unit whose attribute is FU. To operate the OA processing unit
using remote controllers for indoor
units, such as MA remote controller,
set the DipSW3-1 on the OA pro-
cessing unit to ON.
7110 Outdoor unit Unset unit connection
information error
The start-up of the unit
has not completed nor-
mally in the system to
which a transmission
booster is connected.
When all power sources are
turned off after the start-up of
the unit has completed normal-
ly.
When the start-up of the unit
has completed without turning
on the power source of the
transmission booster.
When the power source of the
transmission booster is turned
on afterwards. 1) Check whether the power
source of the transmission is
turned on.
2) Turn off the power sources of
outdoor/indoor units and trans-
mission booster, and turn them
on again.
Error
Code
Error source
Error definition and error
detection method
Cause Check method and remedy
Restriction on the
number of units
Number of units
1) Total number
of indoor
units
2) Total number
of LOSSNAY
units
(During auto
address start-
up only)
0 or 1
1-13 : P72 model
1-16 : P96 P108 models
1-20 : P126 model
1-22 : P144 - P168 models
1-24 : P192 - P204 models
1-32 : P216 P234 models
SW 3-1
OFF
ON
Operation method
Direct operation with
the MA remote controller
Interlock with
the indoor unit