[7-2 Error Code Definitions and Solutions: Codes [0 - 999] ]
- 226 -
HWE1314A
GB
7-2
Error Code Definitions and Solutions: Codes [0 - 999]
7-2-1
Error Code [0403]
1. Error code definition
Serial communication error
2. Error definition and error detection method
Serial communication error between the control board and the INV board on the compressor, and between the control board
and the Fan board
Detail code 1: Between the control board and the INV board
Detail code 5, 6: Between the control board and the Fan board
3. Cause, check method and remedy
(1) Faulty wiring
Check the following wiring connections.
1) Between Control board and Fan board
2) Between Fan board and INV board
(2) INV board failure, Fan board failure and Control board failure
Replace the INV board or the Fan board or control board when the power turns on automatically, even if the power source is
reset.
(3) Incorrect setting of the medium pressure sensor kit
See the medium pressure sensor installation manual for how to reset the setting.
1. Error code definition
Panel communication error (Indoor unit)
2. Error definition and detection method
This error is detected when indoor units cannot successfully receive the signals from the Auto filter cleaning unit for one min-
ute.
3. Cause, check method and remedy
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
Control board
FAN board
CN2,CN2A
CN80
CN4,CN4A
CN80
FAN board
INV board
CN82
CN2
CN83
CN43
Cause
Check method and remedy
(1)
Incorrect switch setting on the indoor unit cir-
cuit board
Check SW3-3 on the indoor unit circuit board
Set SW3-3 to ON only when connecting an auto filter cleaning
unit.
(2)
Power wire that connects the circuit board on
the indoor unit and the circuit board on the
cleaning unit is loose.
Check the LED1 (cleaning unit circuit board (microcomputer
power)).
Lit: Power is supplied properly.
Unlit: Check for loose or disconnected power wire between the
indoor unit circuit board (CNAC) and the cleaning unit circuit
board (CN3A).
(3)
Communication wire that connects the circuit
board on the indoor unit and the circuit board
on the cleaning unit is loose.
Check the LED4 (cleaning unit circuit board (communication)).
Blinking: Normal communication
Unlit: Check for loose or disconnected communication wire be-
tween the indoor unit circuit board (CN3G) and the cleaning unit
circuit board (CN3G).
If the LED blinks at irregular intervals (normally blinks at 0.5-sec-
ond intervals), electrical interference is suspected.
Check the items above, turn the power off, and turn the power
back on. If the error persists, replace either the cleaning unit cir-
cuit board or the indoor unit circuit board.
(4)
Panel transceiver circuit fault (cleaning unit)
(5)
Panel transceiver circuit fault (indoor unit)
(6)
Electrical interference on the cleaning unit's
communication cable
Summary of Contents for PURY-EP200YLM-A
Page 9: ...viii ...
Page 13: ... 2 HWE1314A GB ...
Page 29: ... 1 5 Cautionary notes on installation environment and maintenance 18 HWE1314A GB ...
Page 31: ... 20 HWE1314A GB ...
Page 44: ... 2 6 System Connection Example 33 HWE1314A GB 2 Restrictions ...
Page 58: ... 2 7 Example System with an MA Remote Controller 47 47 HWE1314A GB 2 Restrictions ...
Page 77: ... 66 HWE1314A GB ...
Page 105: ... 94 HWE1314A GB ...
Page 137: ... 126 HWE1314A GB ...
Page 171: ... 160 HWE1314A GB ...
Page 227: ... 6 11 Standard Operation Data Reference Data 216 HWE1314A GB ...
Page 231: ... 220 HWE1314A GB ...
Page 395: ... 384 HWE1314A GB ...