Troubleshooting In Check Mode By Remote Control Switch - Hitachi Utopia RPI-2.5HRG Service Manual

1.2.3 Troubleshooting in Check Mode by Remote Control Switch

G Use the remote control CHECK switch in the following cases.
(1) When the RUN lamp is flickering.
(2) To trace back the cause of trouble after restarting from
stoppage with the RUN lamp flickering.
(3) To check during normal operation or stoppage.
(4) To monitor the temperatures of intake and discharge air.
Check Check Mode 1: Current data will be displayed.
Mode
Check Mode 2: Data held immediately before
Normal Mode
Unit Number and
Alarm Code Displayed
(A)
After
7 seconds
*1
Check Mode 1
(See 1.2.3 (1) for details.)
Unit Number and
Alarm Code Displayed
See (A)
After
7 seconds
Check Mode 2
(See 1.2.3 (2) for details.)
Check Mode Released
failure, will be displayed.
CHECK
Press for more
than 3 seconds.
#
HIGH
COOL
ADDS. RN
A/C
CHECK
Perform within
7 seconds to
check another unit.
HIGH
COOL
A/C
CHECK
HIGH
COOL
A/C
CHECK
CHECK
Press for more
than 3 seconds.
HIGH
COOL
ADDS. RN
A/C
CHECK CHECK
HIGH
COOL
A/C
CHECK
HIGH
COOL
A/C
+
CHECK
VENTI
CHECK
Press
(PC-P1H)
NOTES:
G Indication will delay as transmission between the remote
control switch and indoor unit takes about 10 seconds.
G All data may be displayed as "FF" or "-1" or "255".
These transient data produced temporarily by software do
not affect device functions at all. (The alarm code may also
be indicated as "FF".)
G If it is not indicated check mode 1, it has possibilities that
the transmission between remote control switch and
indoor unit is not collect.
Alarm code identifying the last fault that has occurred in
the indicated unit.
Unit number of connected unit or unit number for which
checking mode was selected previously.
G Forward:
G Backward: Press the
To View the Previous Indication
To View the Next Indication
#
ADDS: Number of Indoor Unit in No. ** Cycle
RN: No. ** Refrigerant Cycle
TEMP
G In Check Mode 2, Data of the first
Press
three units connected serially to a
remote control switch are available.
G You can press the CHECK switch to
release Check Mode 2.
Check Mode 1 cannot be released
even if you press the CHECK switch.
TROUBLESHOOTING
SWING SET TEMP.
FAN HIGH ON/OFF TIMER
LOUVER
COOL MED
RN HR
ADDS
HEAT LOW
NO FUNCTION
DEFROST
DRY A/C
SERVICE ABNML FILTER
CENTRAL
+
AUTO VENT H.STRG
T. RUN CHECK
RUN / STOP
TEMP.
MODE FAN SPEED ON/OFF TIMER
LOUVER
VENTI
TIME
Press the switch to rise
from 00 to 01 to 02 ...
switch to descend
from 15 to 14 to 13 ...
TEMP
Press
TEMP
Press
Press to view the next data.
Press to view the previous data.
UNIT
RESET
CHECK
1-53