[
IX
Troubleshooting ]
- 170 -
HWE1113B
GB
1. Error
Code
No ACK error
2. Error definition and error detection method
The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is trans-
mitted six times in a row with 30 seconds interval, the error is detected on the transmission side.)
The address/attribute appeared on the display on the remote controller indicates the controller which did not provide
the response (ACK).
3. System
configuration
(2) Grouping of units in a system with multiple outdoor units
6607
Error
source
address
Error display
Detection
method
Cause
Check method and remedy
Outdoor
unit
(OC)
ME remote
controller (RC)
MA remote
controller (MA)
No acknowl-
edgement
(ACK) at IC
transmission to
OC
Same cause as that for system
with one outdoor unit
Same remedy as that for sys-
tem with one outdoor unit
HBC
control-
ler
(HB)
ME remote
controller
(RC)
MA remote
controller
(MA)
No acknowl-
edgement
(ACK) at IC
transmission to
HB
Same cause as that for system
with one outdoor unit
Same remedy as that for sys-
tem with one outdoor unit
Indoor
unit
(IC)
ME remote
controller (RC)
MA remote
controller (MA)
No acknowl-
edgement
(ACK) at RC
transmission to
IC
(1)
Same causes as (1) - (5) for sys-
tem with one outdoor unit
1)
Turn off the power sources of
the outdoor and indoor units
for 5 or more minutes, and turn
them on again. If the error is
accidental, the will run normal-
ly.If not, check the cause 2).
(2)
Disconnection or short circuit of
the transmission line for the out-
door unit on the terminal block for
centralized control line connection
(TB7)
2)
Check the causes of (1) - (5). If
the cause is found, correct it. If
no cause is found, check 3).
(3)
When multiple outdoor units are
connected and the power source
of one of the outdoor units has
been shut off.
3)
Check the LED displays for
troubleshooting on other re-
mote controllers whether an
error occurs.
(4)
The male power supply connector
of the outdoor unit is not connect-
ed to the female power supply
switch connector (CN40).
If an error is found,
-> If an error is found, check
the check code definition, and
correct the error.
If no error is found,
-> Indoor unit board failure
(5)
The male power supply connec-
tors on 2 or more outdoor units
are connected to the female pow-
er supply switch connector
(CN40) for centralized control.
If an error occurs, after the unit
runs normally once, the following
causes may be considered.
Total capacity error (7100)
Capacity code error (7101)
Error in the number of con-
nected units (7102)
Address setting error (7105)
Summary of Contents for City Multi CMB-WP108V-G
Page 1: ...AIR CONDITIONER 2014 Service Handbook PURY WP200 WP250YJM A CMB WP108V G Model 3rd edition ...
Page 11: ... 2 HWE1113B GB ...
Page 27: ... I Read Before Servicing 18 HWE1113B GB ...
Page 29: ... 20 HWE1113B GB ...
Page 57: ... 48 HWE1113B GB ...
Page 70: ... III Outdoor Unit Components 61 HWE1113B GB 2 Power supply circuit board ...
Page 71: ... III Outdoor Unit Components 62 HWE1113B GB ...
Page 73: ... 64 HWE1113B GB ...
Page 81: ... IV Remote Controller 72 HWE1113B GB ...
Page 83: ... 74 HWE1113B GB ...
Page 89: ... 80 HWE1113B GB ...
Page 97: ... 88 HWE1113B GB ...
Page 127: ... 118 HWE1113B GB ...
Page 135: ... VIII Test Run Mode 126 HWE1113B GB ...
Page 137: ... 128 HWE1113B GB ...
Page 253: ... 244 HWE1113B GB ...