- 125 -
[2] Responding to Error Display on the Remote Controller
1. Mechanical problems
Checking code
0403
Meaning, detecting method
Cause
Checking method & Countermeasure
Serial
transmission
abnormality
Serial transmission failure
between the main board and the
INV board, and between the
main board and the FAN board.
Detail code 01:
Between the main board and
the INV board
Detail code 05:
Between the main board and
the FAN board
(1) Defective wiring.
Check for wiring between the
main board connector CNRS3B
and the INV board connector
CNRS1 or between the main
board connector CNRS3A and
the FAN board connector
CNRS2 or check for contact the
connector.
Check for contact of the
connector CNAC3 on the main
board or of the connector CNTR
on the FAN board.
1102 Discharge
temperature
abnormality
(Outdoor unit)
1. When 110˚C for 8HP and
120˚C for 10HP or more
discharge temperature is
detected during operations
(the first time), outdoor unit
stops once, mode is changed
to restart mode after 3
minutes, then the outdoor unit
restarts.
2. When 120
°
C or higher
discharge is detected again
(the second time) within 30
minutes after the first stop of
outdoor unit, mode is
changed to restart mode after
3 minutes, then the outdoor
unit restarts.
3. When 120˚C or more
discharge is detected, again
(the third time) within 30
minutes after previous stop of
outdoor unit, emergency stop
is observed with code
No.“1102” displayed.
4. When 120˚C or more
discharge is detected 30 or
more minutes after previous
stop of outdoor unit, the stop
is regarded as the first time
and the process shown in 1.
is observed.
5. 30 minutes after stop of
outdoor unit is intermittent
fault check period with LED
displayed.
(1) Gas leak, gas shortage.
(2) Overload operations.
(3) Poor operations of indoor LEV.
(4) Poor operations of BC
controller LEV.
Cooling-only
→
LEV3
Cooling-main
→
LEV1,2 and 3
Heating-only or heating-main
→
LEV3
Defrost
→
LEV3
(5) Poor operations of the BC
controller SVM1 and 2
→
Cooling-only/Defrost
(6) Poor operations of the BC
controller SVA
→
Cooling-
only/Cooling-main
(7) Poor operations of the BC
controller SVB
→
Heating-
only/Heating-main
(8) Poor operations of the
solenoid valve SV (4a~4d
(P200~P400type), 4a~4d,
5a, 5b (P450~P650type))
→
Heating-only/Heating-main
(9) Branch port address setting
error.
(10) Poor operations of ball
valve.
(11) Outdoor unit fan block, motor
trouble, poor operations of
fan controller Heating
(Heating-only, Heating-main).
(3) ~ (11) : Rise in
discharge temp. by low
pressure drawing.
See
Refrigerant amount check.
Check operating conditions and
operation status of
indoor/outdoor units.
Check operation status by
actually performing cooling or
heating operations.
Cooling : Indoor LEV
(Cooling-only) LEV1
Heating : Indoor LEV
(Heating-only)
See
Trouble check of LEV and
solenoid valve.
Check the branch port address
of the indoor unit.
Confirm that ball valve is fully
opened.
Check outdoor fan.
See
Trouble check of outdoor
fan.
(2) Inverter address switches
are set wrong.
Check the address of SW2-1 on
the INV board.
Check SW2-1 on the FAN board
whether it is ON.
(4) Defective INV board.
Defective FAN board.
Replace the INV board or the
FAN board when the power
turns on automatically, even if
the power is reset.
(3) Transformer failure.
Measure voltages between pins
1 and 3 of the FAN board
connector CNTR.
✻
For the check code on the inverter, refer to
“
7. Inverter and compressor
”
in the section [4]
“
Troubleshooting of principal parts
”
Содержание PURY-P200
Страница 49: ... 46 Heat exchanger Fan guard Heat exchanger Fan guard P400 type Front view of the unit Rear view of the unit ...
Страница 57: ... 54 CNVDC DC bus voltage input 1 3 LED1 LED2 SW2 CNTR IPM back CNN Fan motor output Fuse CNRS2 3 FAN board ...
Страница 64: ... 61 Relay board RELAY 4 board Relay board RELAY 10 board ...